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| voltage regulators 1 publication date: january 2004 sdh00015ieb AN30210A power supply control ic for a digital still camera overview the AN30210A is a low voltage operative ic which has 1-ch., 5 v output sharing self-biasing voltage and pwm dc-dc converter control outputs of 6-ch. it is configured with step-up 3 channels, step-up/down 1 channel, step- down 1 channel and 2 channels for transformer drive. since its minimum operating voltage is as low as 1.5 v, it can be operated by two dry batteries. all channels operate synchronously and a synchro- nous rectification method is used for the low output volt- age channel, thus achieving a high precision output volt- age with v ref 1%. it also is capable of driving directly the output power mosfet of each channel. features ? operating supply voltage range: 1.5 v to 7.2 v ? high precision reference voltage circuit built-in ( 1%) ? all channels are synchronous operation in pwm con- trol ? synchronous rectification for the low output voltage channel (synchronous rectification can be stopped by the external signal at the low load: stop) ? on/off (sequence control) pin attached for each and all channels. soft-start pins for each channel (simulta- neous soft start is available with one external capacitor.) ? timer latch circuit for short-circuit protection circuit (selectable for each channel separately or all channels simultaneously) ? control frequency reduction is available by an external signal at the low load. ? maximum duty cycle 88% (adjustment range of 0% to 100% with an external resistor) ? low power dissipation and high speed operation thanks to 0.6 m cmos process applications ? digital still cameras lqfp064-p-0707 unit: mm 0.500.25 0 to10 0.15 + 0 .1 0 ? 0 .0 5 (1.00) 9.000.20 7.000.20 33 48 16 1 17 64 49 32 7.000.20 1.70max. 1.400.10 0.100.10 (0.50) 9.000.20 seating plane (0.50) 0.40 0.16 +0.10 ?0.05 note) the package of this product will be changed to lead-free type (lqfp064-p-0707b). see the new package dimensions section later of this datasheet. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/
AN30210A 2 sdh00015ieb block diagram 12 59 sgnd tosh 24 58 60 32 57 56 17 46 v ref (high temperature: h) (h:frequency down) scp cosc rt ct ctl0 scp0 h-start 11 10 5 19 8 pv cc1 pgnd1 44 sv cc v bat vo0 vo0 v batl pv cc1 pv cc2 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 mo2 ho2 lo2 di dei do pgnd0 eo0 pgnd1 out1 pnsw2 pv cc3 mo3 ho3 lo3 stop in0 in1 v bat v bat v bat v ref v bat v bat asist drv0 ss0 v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 eo1 vo1 in1 h-start ctl1 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q eo2 vo2 in2 h-start ctl2 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q eo3 vo3 in3 h-start ctl3 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q eo4 vo4 in4 h-start ctl4 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q eo5 vo5 in5 h-start ctl5 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q eo6 vo6 in6 h-start ctl6 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 pnsw3 45 dead time cont. (v batl input: h) (overvoltage: l) in2 in4 in3 v cc v cc v cc 5 v/0.05 a voltage step-up for ic drive v cc in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a (h :total shut-down) pwm0 voltage descent overvoltage voltage step-up/down sw (at step-down) maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 3 sdh00015ieb pin no. symbol description 33 ho3 ch.3 high-side driver pin 34 p vcc3 ch.3 us driver power supply pin 35 ctl1 ch.1 on/off start-up input pin 36 ctl2 ch.2 on/off start-up input pin 37 ctl3 ch.3 on/off start-up input pin 38 ctl4 ch.4 on/off start-up input pin 39 ctl5 ch.5 on/off start-up input pin 40 ctl6 ch.6 on/off start-up input pin 41 do dropper error amplifier output pin 42 dei dropper error amplifier inverting input pin 43 di dropper output monitor pin 44 sv cc supply voltage application pin for signal block 45 pnsw3 ch.3 high-side/p-ch., n-ch. switching pin 46 scp0 short-circuit protection time constant setup capacitance connection pin for ch.0 47 v batl battery low-voltage application pin 48 v bat battery voltage application pin 49 in3 ch.3 error amplifier inverting input pin 50 eo3 ch.3 error amplifier output pin 51 in0 ch.0 error amplifier inverting input pin 52 vo0 ch.0 output monitor pin 53 eo0 ch.0 error amplifier output pin 54 in1 ch.1 error amplifier inverting input pin 55 eo1 ch.1 error amplifier output pin 56 ct oscillator frequency setup capacitor connection pin 57 rt oscillator frequency setup resistor connection pin 58 v ref reference voltage output pin 59 sgnd signal gnd 60 scp short-circuit protection time constant setup capacitor connection pin for ch.1 to ch.6 61 in2 ch.2 error amplifier inverting input pin 62 eo2 ch.2 error amplifier output pin 63 in4 ch.4 error amplifier inverting input pin 64 eo4 ch.4 error amplifier output pin pin descriptions pin no. symbol description 1 in5 ch.5 error amplifier inverting input pin 2 eo5 ch.5 error amplifier output pin 3 in6 ch.6 error amplifier inverting input pin 4 eo6 ch.6 error amplifier output pin 5 ss ch.1 to ch.3 common soft-start setting pin 6 ss0 ch.0 soft-start setting pin 7 ss1 ch.1 soft-start setting pin 8 ss2 ch.2 soft-start setting pin 9 ss3 ch.3 soft-start setting pin 10 ss4 ch.4 soft-start setting pin 11 ss5 ch.5 soft-start setting pin 12 ss6 ch.6 soft-start setting pin 13 pnsw2 ch.2 high-side/p-ch., n-ch. switching pin 14 drv6 ch.6 driver output pin 15 drv5 ch.5 driver output pin 16 drv4 ch.4 driver output pin 17 ctl0 ch.0 on/off start-up input pin 18 stop synchronous rectification stop pin 19 lo2 ch.2 low-side driver output pin 20 mo2 ch.2 middle-side output pin 21 pv cc1 ch.1, ch.2/l, ch.3/l, ch.4 to ch.6 driver power supply pin 22 ho2 ch.2 high-side driver output pin 23 pv cc2 ch.2 us driver power supply pin 24 tosh overcurrent individual/ total shutdown switching pin 25 drv0 ch.0 step-up output pin 26 pgnd0 ch.0 step-up output gnd 27 asist assist transistor driver output pin 28 out1 ch.1 driver output pin 29 lo3 ch.3 low-side driver output pin 30 pgnd1 ch.1, ch.2/l, ch.3/l, ch.4 to ch.6 driver gnd 31 mo3 ch.3 middle-side output pin 32 cosc control frequency switching pin at low load maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 4 sdh00015ieb absolute maximum ratings parameter symbol rating unit supply voltage sv cc 6.9 v v bat / v batl voltage v bat / v batl 7.5/6.0 v supply current i cc ? ma power dissipation * 2 p d qfs ? 64 mw operating ambient temperature * 1 t opr ? 20 to + 85 c storage temperature * 1 t stg ? 55 to + 125 c drv0 allowable application voltage v drv0 v bat + 0.1 v power v cc1 allowable application voltage pv cc1 sv cc + 0.1 v drv0 allowable peak current * 4 i drv0p 3.5 ma ch.2 high-side transistor switching pnsw2 sv cc + 0.1 v input allowable application voltage * 3 ch.3 high-side transistor switching pnsw3 sv cc + 0.1 v input allowable application voltage * 3 control input allowable application v ctl0/1/2/3/4/5/6 sv cc + 0.1 v voltage 0/1/2/3/4/5/6 reference supply i ref ? 5ma allowable application current allowable application voltage to v vo0 sv cc + 0.1 v output voltage detection input 0 allowable application voltage to v di sv cc + 0.1 v output voltage detection input d1 error amplifier (0 to 6) allowable v in0/1/2/3/4/5/6 ? 0.2 to sv cc v application voltage to input pin error amplifier (dropper) allowable v dei ? 0.2 to sv cc v application voltage to input pin low frequency setting pin input cosc sv cc + 0.1 v allowable application voltage *3 synchronous rectification stop pin stop sv cc + 0.1 v input application voltage * 3 total shutdown pin input allowable voltage *3 tosh sv cc + 0.1 v allowable application voltage pvmo2 sv cc + 0.1 v between pv cc2 and mo2 allowable application voltage pvmo3 sv cc + 0.1 v between pv cc3 and mo3 note) * 1: except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for t a = 25 c. * 2: t a = 85 c. for the independent ic without a heat sink. note that applications must observe the derating curve for the relationship between the ic power consumption and the ambient temperature. * 3: do not apply external currents or voltages to any pins not specifically mentioned. for the circuit currents, ' + ' denotes current flowing into the ic, and ' ? ' denotes current flowing out of the ic. * 4: t < 10 ms, v ds < 5 v maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 5 sdh00015ieb recommended operating range parameter symbol range unit supply voltage sv cc 4.5 to 5.5 v v bat 2.8 to 7.2 v batl 1.5 to 4.6 parameter symbol conditions min typ max unit reference voltage reference voltage v ref i ref = ? 0.1 ma 1.256 1.269 1.282 v line regulation line sv cc = 4.5 v to 5.5 v ? 315mv load regulation load i ref = 0 ma to ? 1.0 ma ? 24 ? 12 ? mv sv cc low voltage protection circuit operation start voltage sv ccon 3.8 4.0 4.2 v circuit operation stop voltage sv ccoff 3.6 3.8 4.0 v v bat low voltage protection circuit operation start voltage v batlon at v batl input 1.331 1.418 1.505 v circuit operation stop voltage v batloff at v batl input 1.251 1.338 1.425 v circuit operation start voltage v baton at v bat input 2.05 2.28 2.51 v circuit operation stop voltage v batoff at v bat input 2.00 2.23 2.46 v dropper amp. block output sink current i rs at v batl = 3 v input 8 16 ? ma output leak current i rl at v batl = 3 v input ?? 2 a output block output transistor n-ch. r on0 i drv0 = 30 ma ? 0.6 1.2 ? on resistance (ch.0) output leak current (ch.0) i l0 v drv0 = 5.0 v ?? 2 a output high voltage (ch.1, 4, 5, 6) v h1/4/5/6 i oh = ? 1 ma pv cc ? 0.1 ?? v output low voltage (ch.1, 4, 5, 6) v l1/4/5/6 i ol = 1 ma ?? 0.1 v n-ch. on resistance (ch.1, 4, 5, 6) r n1/4/5/6 i o = 30 ma ? 310 ? p-ch. on resistance (ch.1, 4, 5, 6) r p1/4/5/6 i o = ? 30 ma ? 310 ? low-side high output voltage (ch.2) v loh2 i oh = ? 1 ma pv cc ? 0.1 ?? v low-side low output voltage (ch.2) v lol2 i ol = 1 ma ?? 0.1 v high-side high output voltage (ch.2) v hoh2 i oh = ? 1 ma pv cc ? 0.1 ?? v high-side low output voltage (ch.2) v hol2 i ol = 1 ma ?? mo2 + 0.1 v lo2 pin n-ch. on resistance (ch.2) r 2ln i o = 30 ma ? 310 ? lo2 pin p-ch. on resistance (ch.2) r 2lp i o = ? 30 ma ? 310 ? ho2 pin n-ch. on resistance (ch.2) r 2hn i o = 30 ma ? 310 ? ho2 pin p-ch. on resistance (ch.2) r 2hp i o = ? 30 ma ? 310 ? electrical characteristics (unless otherwise specified, t a = 25 c 2 c) maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 6 sdh00015ieb electrical characteristics (continued) (unless otherwise specified, t a = 25 c 2 c) parameter symbol conditions min typ max unit output block (continued) low-side high output voltage (ch.3) v loh3 i oh = ? 1 ma pv cc ? 0.1 ?? v low-side low output voltage (ch.3) v lol3 i ol = 1 ma ?? 0.1 v high-side high output voltage (ch.3) v hoh3 i oh = ? 1 ma pv cc ? 0.1 ?? v high-side low output voltage (ch.3) v hol3 i ol = 1 ma ?? mo3 + 0.1 v lo3 pin n-ch. on resistance (ch.3) r 3ln i o = 30 ma ? 310 ? lo3 pin p-ch. on resistance (ch.3) r 3lp i o = ? 30 ma ? 310 ? ho3 pin n-ch. on resistance (ch.3) r 3hn i o = 30 ma ? 310 ? ho3 pin p-ch. on resistance (ch.3) r 3hp i o = ? 30 ma ? 310 ? ch.0 output maximum duty ratio du max0 at v batl = 3 v input 79 85 91 % ch.1 output maximum duty ratio du max1 at v batl = 3 v input 81 87 93 % ch.2/3 output maximum duty ratio du max2/3 at v batl = 3 v input 78 85 92 % ch.4/5/6 output maximum duty ratio du max4/5/6 at v batl = 3 v input 82 88 94 % oscillator ch.0 start-up oscillation frequency 1 f st1 at v batl = 3 v input 110 270 430 khz ch.0 start-up oscillation frequency 2 f st2 at v bat = 3 v input 110 270 430 khz ch.0 start-up output duty ratio 1 du st1 at v batl = 3 v input 45 53 61 % ch.0 start-up output duty ratio 2 du st2 at v bat = 3 v input 46 54 62 % ch.0 to ch.6 f out ct = 180 pf, rt = 33 k ? 465 515 565 khz oscillation frequency 0/1/2/3/4/5/6 cosc = 0 v, v batl = 3 v ch.0 to ch.6 fl out ct = 180 pf, cosc = 5 v 15 25 35 khz low oscillation frequency 0/1/2/3/4/5/6 rt = 33 k ? , v batl = 3 v error amplifier (ch.0 to ch.6) input threshold voltage v th 1.23 1.27 1.31 v in0/1/2/3/4/5/6 0/1/2/3/4/5/6 input bias voltage i b ? 0.25 ? 0.15 ? a in0/1/2/3/4/5/6 0/1/2/3/4/5/6 high-level output voltage v eh 1.0 ?? v eo0/1/2/3/4/5/6 0/1/2/3/4/5/6 low-level output voltage v el ?? 0.2 v eo0/1/2/3/4/5/6 0/1/2/3/4/5/6 output source current i so ? 28 ? 22.5 ? 17 a eo0/1/2/3/4/5/6 0/1/2/3/4/5/6 output sink current i si 0.5 ?? ma eo0/1/2/3/4/5/6 0/1/2/3/4/5/6 ch.0 short-circuit protection circuit block standby pin voltage v scp0 at v batl input or v bat input ?? 0.1 v latch threshold voltage 1 v lth01 at v batl input 1.12 1.24 1.36 v latch threshold voltage 2 v lth02 at v bat input 1.07 1.217 1.31 v maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 7 sdh00015ieb electrical characteristics (continued) (unless otherwise specified, t a = 25 c 2 c) parameter symbol conditions min typ max unit ch.0 short-circuit protection circuit block (continued) pin voltage after latch operation v slt0 at v batl input or v bat input ?? 0.1 v charge current 1 i chg01 at v batl input, v scp0 = 0 v ? 2.92 ? 2.22 ? 1.52 a charge current 2 i chg02 at v bat input, v scp0 = 0 v ? 3.16 ? 2.22 ? 1.28 a ch.1 to ch.6 short-circuit protection circuit pin voltage at standby v scp ?? 0.1 v timer threshold voltage v lth 1.142 1.268 1.394 v ch.1 to ch.6 1/2/3/4/5/6 pin voltage at latch operation v slt ?? 0.1 v ch.1 to ch.6 1/2/3/4/5/6 charge current i chg1 v scp = 0 v ? 1.660 ? 1.282 ? 0.904 a control pin current i ctl v ctl = 2.7 v ? 1 ? 1 a ctl0/1/2/3/4/5/6 0/1/2/3/4/5/6 input high voltage v ctlh 2.7 ?? v ctl0/1/2/3/4/5/6 0/1/2/3/4/5/6 input low voltage v ctll ?? 0.3 v ctl0/1/2/3/4/5/6 0/1/2/3/4/5/6 current consumption startup average quiscent i batl ch.0 with no outside-transistor ? 500 700 a consumption current 1 at v batl input, ss0 = 0 v startup average quiscent i bat ch.0 with no outside-transistor ? 450 650 a consumption current 2 at v bat input, ss0 = 0 v average quiscent current consumption i cc(av) ch.0 to ch.6 at output off ? 38ma standby current 1 isbl ctl0 to ctl6 = 0 v (v batl = 3 v) ? 510 a standby current 2 isb ctl0 to ctl6 = 0 v (v bat = 3 v) ? 510 a operation mode switching block ch.2 p-ch./n-ch. configuration refer to " usage note, 5" ? pv cc2 / ? v setting voltage (page 20) pv cc3 ch.2 n-ch./n-ch. configuration refer to " usage note, 5" ? mo2/ ? v setting voltage (page 20) mo3 synchronous rectification stop voltage 1.5 ?? v synchronous rectification stop ?? 0.3 v release voltage low oscillation-frequency setting voltage 1.5 ?? v low oscillation-frequency release voltage ?? 0.3 v total shutdown setting voltage 1.5 ?? v total shutdown release voltage ?? 0.3 v note) unless otherwise specified, v bat (v batl ) = 3 v, sv cc = pv cc1 = pv cc4 = 5 v, c ref = 0.1 f maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 8 sdh00015ieb electrical characteristics (continued) (unless otherwise specified, t a = 25 c 2 c) ? design reference data note) the characteristics listed below are theoretical values based on the ic design and are not guaranteed. parameter symbol conditions target value unit reference voltage v ref temperature characteristics v refdt t a = 0 c to 70 c 1.0 % sv cc low voltage protection voltage difference between ? sv cc sv ccon ? sv ccoff > 0 0.2 v operation start and stop (sv cc ) v bat low voltage protection voltage difference between ? v batl v batlon ? v batloff > 0 0.07 v operation start and stop (v batl ) voltage difference between ? v bat v baton ? v batoff > 0 0.05 v operation start and stop (v bat ) error amplifier (ch.0 to ch.6) v th temperature characteristics v thdt t a = 0 c to 70 c 1.5 % open loop gain a v 60 db oscillator frequency supply voltage f dv sv cc = 4.5 v to 5.5 v 10 % characteristics rt = 33 k ? , ct = 180 pf frequency temperature f dt t a = ?20 c to 85 c 3% characteristics rt = 33 k ? , ct = 180 pf startup oscillator frequency temperature f stt1 t a = 0 c to 70 c 25 % characteristics output 1 at v batl = 3 v input frequency temperature f stt2 t a = 0 c to 70 c 25 % characteristics output 2 at v bat = 3 v input supply voltage characteristics 1 f stvd1 v batl = 1.5 v to 4.6 v 20 % supply voltage characteristics 2 f stvd2 v bat = 2.8 v to 7.2 v 20 % short-circuit protection circuit comparator threshold voltage (v bat ) v thsb at v batl input 1.6 v comparator threshold voltage (sv cc ) v thss at v batl input 1.6 v overvoltage protection circuit overvoltage circuit operation voltage v ths at v batl input 5.3 v thermal protection circuit circuit operation stop temperature 125 c assist driver circuit n-ch. on resistance r oan 3 ? p-ch. on resistance r oap 6 ? maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 9 sdh00015ieb terminal equivalent circuits pin no. equivalent circuit description in/out 1 in5: ch.5 error amplifier inverting input pin in 2 eo5: ch.5 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 3 in6: ch.6 error amplifier inverting input pin in 4 eo6: ch.6 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 5 ss: ch.1 to ch.3 common soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 1 sv cc v ref 2 sv cc v ref in5 3 sv cc v ref 4 sv cc v ref in6 5 v refh 64 k ? 112 k ? 1 k ? pwm1 to pwm3 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 10 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 6 ss0: ch.0 soft-start time setting pin in v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 7 ss1: ch.1 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 8 ss2: ch.2 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 9 ss3: ch.3 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 10 ss4: ch.4 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 11 ss5: ch.5 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 6 1 k ? v batl start-up circuit 8 v refh eo2 ct 64 k ? 112 k ? 1 k ? pwm2 ss 7 v refh eo1 ct 64 k ? 112 k ? 1 k ? pwm1 ss 9 v refh eo3 ct 64 k ? 112 k ? 1 k ? pwm3 ss 10 v refh eo4 ct 64 k ? 112 k ? 1 k ? pwm4 11 v refh eo5 ct 64 k ? 112 k ? 1 k ? pwm5 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 11 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 12 ss6: ch.6 soft-start time setting pin in connect a capacitor between this pin and gnd. ? potential dividing resistance for threshold set- ting 64 k ? (typ.) 112 k ? (typ.) v refh (typ.) = (306 k ? /200 k ? ) v ref (typ.) 13 pnsw2: ch.2; ho2 high-side output fet in p-ch., n-ch. switching pin driven by ho2, fet p-ch., n-ch. switching over ? high: p-ch. (connect to pv cc2 ) low: n-ch. (connect to mo2) 14 drv6: ch.6 output pin out cmos type output on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 15 drv5: ch.5 output pin out cmos type output on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 16 drv4: ch.4 output pin out cmos type output on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 17 ctl0: ch.0 on/off controlt pin in 12 v refh eo6 ct 64 k ? 112 k ? 1 k ? pwm6 13 14 pv cc1 pwm6 pgnd1 15 pv cc1 pwm5 pgnd1 16 pv cc1 pwm4 pgnd1 17 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 12 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 18 stop: synchronous rectification stop pin in when stop is high, ch.2 and ch.3 synchronous rectification stop. 19 lo2: ch.2 output pin (low-side) out synchronous rectification system output stage cmos type output circuit on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 20 mo2: c h.2 output pin (high-side) out low potential side synchronous rectification system output stage cmos type output circuit 21 pv cc1 : output system supply voltage application ? pin 1 power supply pin for ch.1, ch.2/l, ch.3/l, ch.4 to ch.6 driver 22 ho2: ch.2 output pin (high-side) out high potential side synchronous rectification system output stage cmos type output circuit on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 23 pv cc2 : output system supply voltage application ? pin 2 power supply pin for ch.2 us driver 24 tosh: total shutdown pin in when tosh is high, all outputs are stopped if the output is short circuited. 18 200 k ? 200 k ? sv cc 19 pv cc1 pgnd1 20 pv cc2 ho2 21 22 pv cc2 mo2 23 24 200 k ? sv cc 200 k ? sv cc maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 13 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 25 drv0: power supply output pin for ch.0 ic out (5 v) drive for internal power supply of this ic open drain type on resistance n-ch.: 1.2 ? (max.) 26 pgnd0: o utput system grounding pin 0 ? ch.0 output 27 asist: power supply auxiliary output pin for ? ch.0 ic drive for internal power supply of this ic connect in parallel with drv0 for ch.0 capacity increase on resistance (design reference data) n-ch.: 3 ? (typ.) p-ch.: 6 ? (typ.) 28 out1: ch.1 output pin out cmos type output circuit on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 29 lo3: ch.3 output pin (low-side) out synchronous rectification system output stage cmos type output circuit on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 30 pgnd1: output system ground pin 1 ? grounding pin for ch.1, ch.2/l, ch.3/l, ch.4 to ch.6 driver 31 mo3: ch.3 output pin (high-side) out low potential side synchronous rectification system output stage cmos type output circuit 25 pgnd0 v bat2 26 pgnd0 27 v batl pgnd0 28 pv cc1 pgnd1 29 pv cc1 pgnd1 30 pgnd1 31 pv cc3 ho2 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 14 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 32 cocs: low frequency setting pin in when cocs is high, the triangular wave oscil- lation frequency is switched over to low fre- quency (20 khz/typ.) 33 ho3: ch.3 output pin (high-side) out high potential side synchronous rectification system output stage cmos type output circuit on resistance n-ch.: 10 ? (max.) p-ch.: 10 ? (max.) 34 pv cc3 : output system supply voltage application ? pin 3 power supply pin for ch.3 high-side driver 35 ctl1: ch.1 on/off start-up input pin in 36 ctl2: ch.2 on/off control pin in 37 ctl3: ch.3 on/off control pin in 38 ctl4: ch.4 on/off control pin in 32 200 k ? 200 k ? sv cc 33 pv cc3 mo3 34 35 36 37 38 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 15 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 39 ctl5: ch.5 on/off control pin in 40 ctl6: ch.6 on/off control pin in 41 do: ch.0 dropper error amplifier output pin out when connecting the power supply to v bat pin, connect this pin with the base of output pnp transistor of regulator amplifier which stabilizes the power supply voltage sv cc for ch.0: ic drive at 5 v. then ch.0 output voltage is controlled. 42 dei: ch.0 dropper error amplifier inverting in input pin 43 di: ch.0 dropper output monitor pin in the output voltage is set by the potential divid- ing resistance between (di) and sgnd. ? potential dividing resistance 64.64 k ? (typ.) 20 k ? (typ.) 44 sv cc : signal system supply voltage application ? pin 45 pnsw3: ch.3; ho3 high-side output fet in p-ch., n-ch. switching pin driven by ho3, fet p-ch., n-ch. switching over ? high: p-ch. (connect to pv cc3 ) low: n-ch. (connect to mo3) 46 scp0: time constant setting capacitor connect- out ion pin for ch.0 output short-circuit protection 39 40 41 150 ? 43 42 64.64 k ? v ref v batl 20 k ? 44 45 46 v batl maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 16 sdh00015ieb pin no. equivalent circuit description in/out 47 v batl : battery voltage application pin ? (low voltage) 48 v bat : battery voltage application pin ? (high voltage) 49 in3: ch.3 error amplifier inverting input pin in 50 eo3: ch.3 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 51 in0: ch.0 error amplifier inverting input pin in 52 vo0: ch.0 output voltage detection pin in the output voltage is set by the potential divid- ing resistance between vo0 and sgnd ? potential dividing resistance 71.135 k ? (typ.) 25.275 k ? (typ.) 53 eo0: ch.0 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) terminal equivalent circuits (continued) 47 48 49 sv cc v ref 50 sv cc v ref in3 sv cc v ref 52 51 71.135 k ? 25.275 k ? 53 sv cc v ref in0 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 17 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 54 in1: ch.1 error amplifier inverting input pin in 55 eo1: ch.1 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 56 ct: triangular wave oscillation frequency setting out capacitor connection pin 57 rt: triangular wave oscillation frequency setting out resistor connection pin 58 v ref : reference voltage output pin out 59 sgnd: signal system grounding pin ? 54 sv cc v ref 55 sv cc v ref in1 56 sv cc 500 ? 57 sv cc v ref 500 ? 58 sv cc 59 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 18 sdh00015ieb terminal equivalent circuits (continued) pin no. equivalent circuit description in/out 60 scp: time constant setting capacitor connection out pin for ch.1 to ch.6 output short-circuit protection 61 in2: ch.2 error amplifier inverting input pin in 62 eo2: ch.2 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 63 in4: ch.4 error amplifier inverting input pin in 64 eo4: ch.4 error amplifier output pin out source current: ? 20 a (typ.) sink current: 0.5 ma (min.) 60 sv cc v ref 300 ? 61 sv cc v ref 62 sv cc v ref in2 63 sv cc v ref 64 sv cc v ref in4 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 19 sdh00015ieb usage notes 1. v bat rise up speed with v bat pin (pin 48) input v bat pin figure 1. peripheral circuit for v bat pin and v batl pin figure 2. v batl pin voltage in the v bat pin input mode v b r b c1 t on 48 47 t d v batl pin time t (s) voltage v (v) v bat pin inside ic outside ic v batl pin step-down voltage circuit a voltage propagation delay time (t d ) from v bat pin (pin 48) to v batl (pin 47) is made at the battery input to pin 48. if the voltage rise speed (t on ) of the v bat pin exceeds the specified value, the voltage also exceeds the pin's withstand voltage. therefore, you are requested to use a bypass capacitor (c1 in fig.1) of more than 0.055 f capaci- tance. the related equation is: from a < 3 c1 (r b + z ic ) c1: bypass capacitor c1 > a/(3 (r b + z ic )) a / (3 z ic ) . equation (1) r b : internal impedance of the battery c1 can be calculated by substituting 500 s for a and z ic : internal impedance of the ic 3 k ? 3 k ? for z ic in the equation (1) a : minimum time not exceeding the withstand volt- thus c1 > 0.055 f age of v bat pin at v bat pin input: 500 s 2. v bat voltage fall speed at v bat pin (pin 48) input v b r b c1 c2 48 47 v bat pin inside ic outside ic v batl pin step-down voltage circuit figure 4. example of operation error 2.5 v system, low voltage protection operation area v bat pin sequence v batl pin sequence time *: there is a possibility that malfunction occurs depending on the capacity value of c1 and c2. 1.5 v system, low voltage protection operation area figure 3. peripheral circuit for v bat pin and v batl pin maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 20 sdh00015ieb usage notes (continued) 2. v bat voltage fall speed at v bat pin (pin 48) input (continued) ? on operation of the low voltage protection circuit when battery is applied to v bat pin. v bat low voltage protection circuit operating voltage (v uoff ) characteristic in a battery voltage fall time of pin 48 is likely to go wrong operation area depending on the capacitance of c1 and c2. (see figure 4.) therefore, use it based on the relation of (c1/c2) > 2 000. the calculation equation is as follows: v bat pin (pin 48) fall time > v batl pin (pin 47) fall time leads to: 3 c1 z hic > 3 c2 z lic c1: v bat pin bypass capacitor (c1/c2) > (z lic /z hic ) (z lic /r) ....... (1) c2: v batl pin capacitor r b : internal impedance of the battery z hic : internal impedance of the ic measured from v bat z lic : internal impedance of the ic measured from v batl r: load without battery (v b ) 5 ? (worst case) you can calculate (c1/c2) > 2 000 using the equation (1). example) for c2 = 0.1 f, you can get c1 = 200 f. 3. this control ic is designed to operate by receiving ch.0 dc-dc output voltage under a low input voltage operation. for this reason, since its protection circuit is designed on the basis of the above operation, do not adopt any using method other than the application circuit examples. (ex: the using method of directly applying the voltage to sv cc ) 4. power dissipation the power dissipation p of this ic is proportional to the supply voltage. it also changes depending on the output load of ch.0, and the fet input capacitance and the oscillation frequency of ch.1 to ch.6. after referring to the p d ? t a curve on its sheet no., use the ic under its allowable power dissipation on the basis of the following equation (reference expression) p = (sv cc ? v be q1 ? v out1 i out1 r out ) (v out1 ? v bat ) i out + 6 sv cc c iss f h fe q1 v bat h fe q1 v bat + sv cc i cc + v bat i bat < p d v beq1 : ch.0 npn transistor base-emitter voltage h fe q1 : ch.0 npn transistor current amplification ratio r out : ch.0 npn transistor bias current limiting resistance c iss : ch.1 to ch.6 output connection fet input capacitance f : oscillation frequency i cc : sv cc , pv cc1 , pv cc2 and pv cc3 pin current i bat : v bat or v batl pin current 5. pnsw2: ch.2 high-side p-ch., n-ch. switching pin ? in the case of p-ch., connect to pv cc2 ? in the case of n-ch., connect to mo2 pnsw3: ch.2 high-side p-ch., n-ch. switching pin ? in the case of p-ch., connect to pv cc3 ? in the case of n-ch., connect to mo3 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 21 sdh00015ieb application notes [1] functional outline descriptions 1. functional outline description figure AN30210A 22 sdh00015ieb application notes (continued) [1] functional outline descriptions (continued) 2. outline of rise time operation (refer to the rise time timing chart on the next page) 1) connect the power supply to v batl pin (pin 47) (1.5 v to 4.6 v) or v bat pin (pin 48) (2.8 v to 7.2 v). 2) when ch.0 (power supply for ic drive) control pin (ctl0: pin17) is turned on, the pulse voltage output is given to drv0 pin (pin 25) by the pwm control circuit and the voltage of ic power supply pin sv cc (pin 44) rises. ? since the timer of the short-circuit protection circuit for ch.0 operates for the period until ch.0 error ampli- fier output voltage (eo0: pin 53) stabilizes, consideration should be given to the rise setting of each part. (scp0 pin voltage increases due to the charging of timer setting capacitor connected to scp0 pin (pin 46)). (refer to "[2] functional descriptions of each block 6. timer latch type short-circuit protection circuit block for ch.0") ? ic output pin voltage of each channel is not generated until each ctl pin is turned on. 3) after turning on the control pin of each channel, the pwm output pulse voltage is given from ic output pin of each channel and the power supply circuit output voltage of each channel is generated. ? since the timer of the short-circuit protection circuit for ch.1 to ch.6 operates (scp pin: pin 60 voltage increase) for the period until the error amplifier output voltage of each channel (eo1 to eo6) stabilizes, consideration should be given to the rise setting of each part. (refer to "[2] functional descriptions of each block 7. timer latch type short-circuit protection circuit block for ch.1 to ch.6") 4) if any one of the power supply circuit output pin voltages of ch.1 to ch.6 drops in the steady-state due to overloading or short circuiting, the error amplifier output voltage of relevant channel increases and the timer of the short-circuit protection circuit for ch.1 to ch.6 operates. ? if scp pin voltage becomes a value higher than the threshold, ch.1 to ch.6 pwm output pulse stops so as to turn off the power supply circuit. (1) when tosh pin (pin 24) is high: all channels stop simultaneously. (2) when tosh pin (pin 24) is low: only the short circuited channel stops. (refer to "[2] functional descriptions of each block 7. timer latch type short-circuit protection circuit block for ch.1 to ch.6") 5) if sv cc voltage drops to a point under 4.0 v due to overloading or short circuiting, the pwm pulse of ch.1 to ch.6 stops. moreover the timer of the short-circuit protection circuit for ch.0 starts, and the voltage of the terminal scp0 rises when the output of eo0 becomes more than the threshold voltage. the pwm pulse of ch.0 stops when the voltage of the terminal scp0 becomes more than the threshold voltage. ch.0 pwm pulse stops so as to turn off the power supply circuit. (refer to "[2] functional descriptions of each block 6. timer latch type short-circuit protection circuit block for ch.0") maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 23 sdh00015ieb application notes (continued) [1] functional outline descriptions (continued) 3. rising timing chart (typical chart) 1 ctl0 pin v bat pin v batl pin ch.0 sv cc pin ic drive power supply ss0 pin max. duty eo0 pin ch.0 pwm output ch.0 short-circuit protection scp0 pin ch.1 to ch.6 short-circuit protection scp pin ctl0 pin on v bat or v batl switch on v bat : 2.23 v (typ.)/v batl : 1.338 v (typ.) ch.0 timer latch short-circuit protection threshold voltage 1.24 v/1.217 v ch.1 to ch.6 timer latch short-circuit protection threshold voltage 1.269 v sv cc low voltage protection circuit cancel (4.2 v typ.) output short-circuit occurrence low voltage protection circuit stop voltage (no circuit operation at lower than this voltage) off on each ss1 to ss6 pin each eo1 to eo6 pin ct pin each ctl1 to ctl6 pin each ch.1 to ch.6 pwm output v bat , v batl 5 v (typ.) max. duty setting voltage error amplifier output voltage (eo0) each ss1 to ss6 pin voltage all outputs stop or short circuited channels stop error amplifier output voltage each eo1 to eo6 off the oscillation wave forms for pwm output 1) 2) 3) ch.1 to ch.6 in steady-state 4) power supply connection v bat or v batl ch.0 soft start output rise operation short-circuit protection circuit operates until the output stabilizes. ch.1 to ch.6 rise short-circuit protection circuit operates until and output stabilizes. ch.1 to ch.6 short-circuit protection circuit operation ss0 pin voltage the oscillation wave forms for pwm output note) for 1) to 4), refer to the description on the previous page. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 24 sdh00015ieb application notes (continued) [1] functional outline descriptions (continued) 4. rising timing chart (typical chart) 2: short-circuit protection circuit operation for ch.0 sv cc pin output short-circuit occurrence sv cc low voltage protection circuit cancel (4.2 v typ.) v bat : 2.23 v (typ.)/v batl : 1.338 v (typ.) v bat , v batl low voltage protection circuit stop voltage ctl0 pin v bat pin v batl pin ch.0 sv cc pin ic drive power supply ch.0 short-circuit protection scp0 pin ch.0 pin on v bat or v batl switch on 5 v (typ.) 4.2 v (typ.) 0 v error amplifier output voltage (eo0) ch.0 timer latch short-circuit protection threshold voltage 1.24 v/1.217 v all outputs stop off 1) 2) 5) power supply connection v bat or v batl ch.0 soft start output rise operation short-circuit protection circuit operates until the output stabilizes. ch.0 short-circuit protection circuit operation short-circuit protection circuit operation start for ch.0 ss0 pin max. duty eo0 pin ch.0 pwm output max. duty setting voltage ss0 pin voltage the oscillation wave forms for pwm output [2] function descriptions of each block 1. reference voltage block this block consists of band gap circuit and provides 1.26 v (typ.) reference voltage output with a temperature compensation accuracy of 1%. the reference voltage is stabilized at a supply voltage (sv cc ) over 4.2 v (typ.). this voltage is used as the reference voltage for error amplifier 0 to 6, the regulator amplifier and the short-circuit protection circuit, etc. 2. triangular wave oscillation block 1) pwm operation after ch.0 (built-in ic power supply) start up, the triangular wave with high wave value of approx. 1.40 v and low wave value of approx. 0.55 v by the timing capacitor on ct pin (pin 56) and rt pin (pin 57) connection resistor is generated, and the connection is made inside the ic to the non-reverse input of pwm comparator of each channel. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 25 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 2. triangular wave oscillation block (continued) 2) pwm operation (continued) f osc = 1 = i o t 1 + t 2 2 c t (v cth ? v ctl ) i o = 4 v rt = 4 v ref r t r t v cth ? v ctl = 0.85 v f osc 1 [hz] 0.34 c t r t however, since the above equations are for the calculation when the oscillation frequency of the product specifications is at 515 khz, the time for loosting charge if the frequency is variable, the amount of overshoot and under shoot are not taken into consideration. when the frequency is variable, the calculation value obtained from the above equations is just a standard. confirm the final result with the actual equipment. notes) when setting the oscillation frequency, the recommended value for the timing capacitor connected to ct pin (pin 56) is 180 pf and the resistor to rt pin (pin 57) is 33 k ? . 3) frequency change-over it is possible to change over the triangular oscillation frequency by cocs pin (pin32) setting. (1) cocs pin is high: oscillation frequency decreases (25 khz typ.) (2) cocs pin is low: oscillation frequency normal (515 khz typ.) 3. v bat , v batl low voltage protection circuit block this part protects the system from breakdown or degradation due to a malfunction control in the transition state of v bat or v batl start and stop. 1) v bat input time for the period until v bat pin (pin 48) voltage reaches 2.28 v (typ.) in its rise time, and when it goes below 2.23 v in its fall time, ch.0 (internal power supply of ic) output is completely stopped by cutting off the bias to the startup oscillation circuit. 2) v batl input time for the period until v batl pin (pin 47) voltage reaches 1.418 v (typ.) in its rise time, and when it goes below 1.338 v in its fall time, ch.0 (internal power supply of ic) output is completely stopped by cutting off the bias to the startup oscillation circuit. 4. sv cc low voltage protection circuit block this part protects the system from breakdown or degradation due to a malfunction control in the generation transition state of the internal power supply of ic (sv cc ) by the ch.0 (built-in ic power supply) start and stop. for the period until sv cc pin voltage (ch.0 output voltage) (pin 44) reaches 4.2 v (typ.) in its rise time, the output drive transistor is cut off (100% quiescent period) by setting scp0 pin (pin 46), each ss pin (pin 7 to pin 12) and each eo pin (pin 55, pin 62, pin 50, pin 64, pin 2 and pin 4) at 0 v. figure 2. triangular oscillation waveform t 2 t 1 charge discharge t v cth v ctl maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 26 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 4. sv cc low voltage protection circuit block (continued) 5. error amplifier block this part is the error amplifier for npn transistor input. it detects the output voltage from the dc-dc converter and inputs the amplified signal to pwm comparator. the non-reverse input of each channel (reference side) is set at 1.26 v (typ.) of the internal reference voltage. it is possible to carry out an arbitrary gain setting and phase compensation by the connection of a resistor and capacitor between eo pin and in pin of each channel. figure 3. low voltage protection circuit operation timing chart at v bat , v batl and sv cc start time (typical chart) ch.0 start up oscillation (f = 270 khz typ.) (without output for ch.1 to ch.6) v bat , v batl operation start voltage v bat : 2.30 v (typ.) v batl : 1.433 v (typ.) v bat , v batl sv cc ss pin voltage waveform out pin voltage waveform error amplifier output voltage (eo) ct pin voltage waveform sv cc operation start voltage (4.2 v typ.) figure 4. connection of each channel error amplifier vo0 eo0 52 error amplifier v ref (1.26 v) pwm comparator in0 51 53 eo1 v ref (1.26 v) pwm comparator error amplifier in1 54 ch.1 output 55 ? ch.0 ? ch.1 eo3 v ref (1.26 v) pwm comparator error amplifier in3 49 ch.3 output 50 eo2 v ref (1.26 v) pwm comparator error amplifier in2 61 ch.2 output 62 ? ch.2 ? ch.3 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 27 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 5. error amplifier block (continued) eo5 v ref (1.26 v) pwm comparator error amplifier in5 1 ch.5 output 2 eo4 v ref (1.26 v) pwm comparator error amplifier in4 63 ch.4 output 64 ? ch.4 ? ch.5 eo6 v ref (1.26 v) in6 3 ch.6 output 4 ? ch.6 figure 4. connection of each channel error amplifier (continued) pwm comparator error amplifier 1) ch.0 part output voltage setting ch.0 has a built-in voltage setting resistor so that the output voltage is set at 5.0 v (typ.). 2) ch.1 to ch.6 part output voltage setting the voltage for ch.1 to ch.6 can be set by the connection of external voltage setting resistors as shown in the following diagram. v out = v ref r1 + r2 [v] r2 = 1.26 v r1 + r2 [v] (typ.) r2 eo * v ref (1.26 v) figure 5. output voltage setting in * r1 r2 ch. * output pwm comparator error amplifier 6. timer latch type short-circuit protection circuit block for ch.0 this block protects an external main switching device, flywheel diode and choke coil from breakdown or degradation if ch.0 output is maintained in an overloading or short circuiting condition for a certain period of time. this protection circuit recognizes a drop of ch.0 output, which is the ic's sv cc power supply, as short circuiting and operates the protection circuit. if ch.0 output voltage (sv cc ) drops and goes below the latch threshold voltage described later, the timer circuit is operated by the output reversing of the short-circuit detection comparator (s.c.p. comp.), and the protection enable capacitor externally attached to scp0 pin (pin46) starts charging. unless ch.0 output voltage (sv cc ) returns to the normal voltage range (sv cc > 4.2 v) until the voltage of this capacitor reaches; with v batl input: 1.24 v (typ.) with v bat input: 1.217 v (typ.), the latch circuit is set, and the output drive transistor is cut off, and the quiescent period becomes 100%. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 28 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 6. timer latch type short-circuit protection circuit block for ch.0 (continued) also, this short-circuit protection circuit stops all of them from ch.1 to ch.6 because of ch.0 output, that is sv cc , is short-circuit. the short-circuit protection can be canceled by either the following 1) or 2) method. 1) once reduce v batl (pin 47) or v bat (pin 48) potential to a voltage below the lower threshold voltage limit of v bat , v batl low voltage protection circuit, and restart . 2) bringing down ctl0 pin (pin 17) to low-level, and restart. note) when the power supply is started up, it is recognized as short-circuit state so that scp0 pin voltage (pin 46) starts charging. for this reason, it is necessary to set scp0 pin capacitance so as to start up dc-dc converter output voltage before the ic sets the short-circuit detection and latch circuit timer time t scp0 circuit operation stop voltage (4.2 v typ.) short-circuit detection ct pin voltage waveform figure 6. ch.0 output short-circuit protective operation timing chart (typical chart) v lth0 sv cc error amplifier output voltage (eo) out pin voltage scp0 pin voltage AN30210A 29 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 7. timer latch type short-circuit protection circuit block for ch.1 to ch.6 (continued) 2) total shutdown setting tosh pin (pin 24) setting allows the selection of channels whose operation is stopped by the short-circuit protection circuit, either only short-circuit channel or all ch.0 to ch.6 channels. (1) tosh pin (pin 24) is high: all channels shutdown (2) tosh pin (pin 24) is low: only short-circuit channel shutdown note) when the power supply is started up, it is recognized as short-circuit state so that scp pin voltage (pin 60) starts charging. for this reason, it is necessary to set scp pin capacitance so as to start up dc-dc converter output voltage before the ic sets the short-circuit detection and latch circuit. a care must be taken especially when applying the softstart because the startup time extends. v lth 0 v timer time t scp figure 7. ch.1 to ch.6 output short-circuit protective operation timing chart (typical chart) output voltage ct pin voltage waveform ss pin voltage waveform error amplifier output voltage (eo) out pin voltage scp pin voltage t scp = c scp v lth = c scp 1.268 = c scp 10 6 [s] (typ.) * c scp : scp pin connection capacitance i chg 1.282 a 0.989 i chg : scp pin charge current 8. pwm comparator block pwm comparator controls the output pulse on period according to the input voltage. it puts the output pin of each channel in high-level and turns on the output transistor during the period when the triangular wave voltage of ct pin (pin 56) is lower than each ss * pin voltage and each eo * pin voltage. the maximum duty ratio is internally set by the triangular wave voltage and each ss * pin setting voltage. the maximum duty ratio is internally set at 88% (typ.) for all channels. however, it can be set at any value from 0% to 100% by the connection of a resistor between each ss pin and sgnd (pin 59) or v ref pin (pin 58). also, the softstart which gradually expands the on period of the output pulse at the startup time operates by a capacitor connection between each ss pin and gnd. ? max-du setting equation maxdu = v ss ? v ctl 100 [%] v cth ? v ctl where, v ss = v ref ' ro2 [v] ro1 + ro2 v cth = 1.40 v (typ.) v ctl = 0.55 v (typ.) v ref ' = 1.94 v (typ.) figure 8. output du and softstart setting diagram c ss v ref ' ro1 ro2 ic built-in resistance ss * pin maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 30 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 8. pwm comparator block (continued) figure 9. pwm comparator operation and softstart operation timing chart (typical chart) ct pin voltage ss pin voltage out pin voltage error amplifier output maximum duty softstart time v cth v ctl actually measured value and calculated value may not agree due to the delay of pwm comparator operation and the shift of v cth , v xtl value of triangular wave oscillation. adjust with actually mounted circuit board. 9. ch.0 output part 1) operational explanation (1) output circuit is open drain configuration. (2) exclusive-use for voltage step-up circuit (3) output stage has built-in power mosfet (n-ch.) and on-state resistance is 1.2 ? (max.). (4) exclusive-use for ic's internal power supply and the setting voltage is 5 v. ? the circuit block of ch.0 output part and the peripheral circuit example are shown in figure 10. 10. ch.1 output part 1) operational explanation (1) output circuit is cmos configuration. ? the circuit block of ch.1 output part and the peripheral circuit example are shown in figure 11. pgnd0 figure 10 drv0 v bat2 v bat v batl v cc v o0 26 25 out1 pwm1 tr1 pv cc1 v bat v batl out v cc in1 28 pgnd1 30 21 figure 11 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 31 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 11. ch.2 output block 1) operational explanation (1) the output circuit is synchronous rectification method. (2) the output stage for both ho2 (pin 22) and lo2 (pin 19) is cmos configuration. (3) it is set up at either the voltage step-up or step-down by the selection of the the supply voltage connection pin. i) if the power supply is connected to v batl pin (pin 47), it is set at the voltage step-up. ii) if the power supply is connected to v bat pin (pin 48), it is set at the voltage step-down. (4) the setting of pnsw2 pin (pin 13) allows the selection of either n-ch. or p-ch. for the ho2 output driven external sw device. i) pns pin is high: p-ch. fet drive (connect to pv cc2 ) ii) pns pin is low: n-ch. fet drive (connect to mo2) (5) the synchronous rectification is stopped by stop pin (pin 18) setting. i) stop pin is high: synchronous rectification stops a) voltage step-up time: ho2 output stops b) voltage step-down time: lo2 output stops at that time, a rectification diode is required in place of the stopped fet. ii) stop pin is low: synchronous rectification operates the synchronous rectification stop is performed at the same time with ch.3. 2) voltage step-up time ? ch.2 output part circuit block and the voltage step-up time peripheral circuit example are shown in figure 12. (1) pwm output voltage ? the pwm output voltage is supplied from ho2 pin (pin 22) and lo2 pin (pin 19) to drive fet tr1 and tr2 respectively. both pin voltages are as shown in figure 13. ? when tr2 is on, the current flows through the path from the power supply (v batl ) coil tr2 gnd and the electric power is supplied to the coil. at this time, tr1 is off. ? next when tr2 is off, tr1 goes on, and the electric power accumulated in the coil is supplied to the out- put through tr1. (2) quiescent period ? the pmw output voltages given from ho2 pin (pin 22) and lo2 (pin 19) are provided with the quies- cent period t d in which both become off state as shown in figure 13. this is provided for the preven- tion of simultaneous turning on of tr1 and tr2. dead time cont. mo2 tr2 tr1 ho2 pv cc1 pgnd1 pwm2 voltage step-up/ step-down changeover v batl out v cc d l in2 20 lo2 19 stop 18 22 pnsw2 13 pv cc2 23 figure 12 t d ho2 pin voltage lo2 pin voltage tr2 on t d : 80 ns (typ.) tr1 on off off figure 13 t d maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 32 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 11. ch.2 output block (continued) 3) voltage step-down time ? ch.2 output part circuit block and the voltage step-down time peripheral circuit example are shown in figure 14. dead time cont. mo2 tr2 tr1 ho2 pv cc1 pgnd1 pwm2 v bat out v cc in2 20 lo2 19 stop 18 22 pnsw2 13 pv cc2 23 figure 14 voltage step-up/ step-down changeover (1) pwm output voltage ? the pwm output voltage is supplied from ho2 pin (pin 22) and lo2 pin (pin 19) to drive fet tr1 and tr2 respectively. both pin voltages are as shown in figure 15. ? when tr1 is on, the current flows through the path from the power supply (v bat ) tr1 coil output and the electric power is supplied to the coil. at this time, tr2 is off. ? next when tr1 is off, tr2 goes on, and the electric power accumulated in the coil is supplied to the out- put through tr2. (2) quiescent period ? as same as the case of voltage step-up, the pmw output voltages given from ho2 pin (pin 22) and lo2 (pin 19) are provided with the quiescent pe- riod td in which both become off state as shown in figure 15. this is provided for the prevention of si- multaneous turning on of tr1 and tr2. t d ho2 pin voltage lo2 pin voltage tr2 on t d : 80 ns (typ.) tr1 on off off figure 15 t d maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 33 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 11. ch.2 output block (continued) 4) bootstrap circuit a bootstrap circuit is provided for driving n-ch. mosfet: tr1. this bootstrap circuit is provided for keeping the gate-source voltage of n-ch. mosfet: tr1 over the gate threshold voltage by increasing high- level of ho2 pin (pin 22) to a voltage higher than vcc when n-ch. mosfet: tr1 is on. (1) operational explanation of bootstrap circuit i) voltage step-up case mo2 tr2 tr1 cb ho2 pv cc1 pgnd1 out v cc d l in2 20 lo2 19 22 pv cc2 23 figure 16 [each part voltage outline chart] v cc pv cc2 lo2 ho2 mo2 v on2 ab vd v out v batl gnd a) off period of n-ch mosfet (tr1) ? n-ch mosfet (tr2) is on (lo2: high) in the period when tr1 is off, and the source voltage (v mo2 ) of tr1 corresponds to a portion of tr2 (v on2 ) voltage drop which is approximately equal to gnd voltage. ( * 1) ? when the forward voltage of diode d is v d , the potential vpv cc2 of ic's internal output circuit power supply pv cc2 becomes; vpv cc2 = v cc ? v d and the charge voltage v cb of capacitor cb for bootstrap becomes; v cb = (vpv cc2 ) ? v on2 v cc ? v d b) on-period of n-ch mosfet (tr1) ? tr2 is off in the period when tr1 is on, and the current is being supplied from the power supply v batl to the output through coil l and tr1. when the voltage drop of tr1 is v on1 , the source voltage (v mo2 ) of tr1 becomes; v mo2 = v out + v on1 and it approximately equal to the output voltage (v out ). ( * 1) ? the potential vpv cc2 of ic's internal output circuit power supply pv cc2 is maintained because the capacitor for bootstrap cb is being charged for the period t1 so that it becomes; vpv cc2 = v mo2 + v cb ? the voltage (v ho2 ) of the output pin ho2 of ic is at the voltage approximately equal to the power supply voltage pv cc2 since the output circuit inside the ic is high. therefore, v gs1 which is the gate-source voltage of tr1 is; v gs1 = v ho2 ? v mo2 vpv cc2 ? v mo2 = v cb here, v cb is charged at v cc ? v d during the off period of tr1 so that the voltage sufficient to turn on tr1 can be maintained. note) * 1 : it is desirable to use mosfet with low on resistance for tr1/tr2. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 34 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 11. ch.2 output block (continued) 4) bootstrap circuit (continued) (1) operational explanation of bootstrap circuit (continued) ii) voltage step-down case figure 17 mo2 tr2 tr1 cb ho2 pv cc1 pgnd1 out v cc 20 lo2 19 22 pv cc2 23 v cc pv cc2 lo2 ho2 mo2 v on2 ab vd v out v bat gnd [each part voltage outline chart] a) off period of n-ch mosfet (tr1) ? n-ch mosfet (tr2) is on (lo2: high) in the period when tr1 is off, and the source voltage (v mo2 ) of tr1 corresponds to a portion of tr2 (v on2 ) voltage drop which is approximately equal to gnd voltage. ( * 2) ? when the forward voltage of diode d is v d , the potential vpv cc2 of ic's internal output circuit power supply pv cc2 becomes; vpv cc2 = v cc ? v d and the charge voltage v cb of capacitor cb for bootstrap becomes; v cb = (vpv cc2 ) ? v on2 v cc ? v d b) on-period of n-ch mosfet (tr1) ? tr2 is off in the period when tr1 is on, and the current is being supplied from the power supply v bat to the output through coil l and tr1. when the voltage drop of tr1 is v on1 , the source voltage (v mo2 ) of tr1 becomes; v mo2 = v bat ? v on1 and it approximately equal to the output voltage (v bat ). ( * 2) ? the potential vpv cc2 of ic's internal output circuit power supply pv cc2 is maintained because the capacitor for bootstrap cb is being charged for the period t1 so that it becomes; vpv cc2 = v mo2 + v cb ? the voltage (v ho2 ) of the output pin ho2 of ic is at the voltage approximately equal to the power supply voltage pv cc2 since the output circuit inside the ic is high. therefore, v gs1 which is the gate-source voltage of tr1 is; v gs1 = v ho2 ? v mo2 vpv cc2 ? v mo2 = v cb here, v cb is charged at v cc ? v d during the off period of tr1 so that the voltage sufficient to turn on tr1 can be maintained. note) * 2 : it is desirable to use mosfet with low on resistance for tr1/tr2. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 35 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 11. ch.2 output block (continued) 4) bootstrap circuit (continued) (2) bootstrap circuit usage notes i) operating power supply voltage range use an operating power supply voltage with a sufficient margin since pv cc2 pin voltage (pin 23) exceeds v cc as shown below when n-ch. mosfet (tr1), being a switching device, is turned on. vpv cc2 v mo2 + v cc ? v d v cc + v out + v on1 ? v d : voltage step-up time vpv cc2 v mo2 + v cc ? v d v cc + v bat ? v on1 ? v d : voltage stap-down time ii) bootstrap capacitor constant setting the bootstrap capacitor pulls up pv cc2 pin voltage to a point over v cc by capacitance coupling with the source side of n-ch. mosfet when it is turn-on. at this time, the bootstrap capacitor is dis- charged by the gate drive current of n-ch. mosfet. a too small capacitance value setting for the bootstrap capacitor may cause the efficiency drop due to switching loss increase. therefore, a sufficiently large capacitance setting value should be taken as compared with the gate input capacitance. 12. ch.3 output block 1) operational explanation (1) the output circuit is synchronous rectification method. (2) the output stage is cmos configuration for both ho3 (pin 33) and lo3 (pin 29). (3) exclusive-use for voltage step-down circuit. (4) the setting of pnsw3 pin (pin 45) allows the selection of either n-ch. or p-ch. for the ho3 output driven external sw device. i) pnsw pin is high: p-ch. fet drive (connect to pv cc3 ) ii) pnsw pin is low: n-ch. fet drive (connect to mo3) (5) lo3 (pin 29) output is turned off and the synchronous rectification is stopped by setting of stop pin (pin 18). i) stop pin is high: synchronous rectification stops at that time, a rectification diode is required in place of the stopped fet. ii) stop pin is low: synchronous rectification operates the synchronous rectification stop is carried out simultaneously with ch.2. (6) the circuit operation is similar to ch.2 voltage step-down circuit. (7) the quiescent period is also similar to ch.2 voltage step-down circuit. (8) the bootstrap circuit is also similar to ch.2 voltage step-down circuit. dead time cont. mo3 tr2 tr1 ho3 pv cc1 pgnd1 pwm3 v bat v batl out v cc in3 31 lo3 29 stop 18 33 pnsw3 45 pv cc3 34 figure 18 refer to the items for ch.2 for the concrete circuit operations. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 36 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 13. ch.4 output block 1) operational explanation (1) output circuit is cmos configuration. the circuit block of ch.4 to ch.6 output part and the peripheral circuit example are shown in figure 19. drv4 to drv6 pwm4 to pwm6 tr1 pv cc1 v bat v batl out in4 to in6 pgnd1 figure 19 14. ctl block each ch.0 to ch.6 channel turns on each time by bringing ctl * pin (ctl0 to ctl6) for each ch.0 to ch.6 to high-level. each channel turns off if ctl * pin is brought to low-level ( < 0.3 v). 1) the maximum applied voltage for each ctl * pin: bring it under sv cc (pin 44) + 0.1 v 2) this ic's ch.0 output is ic's power supply (sv cc ) so that on/off operation of other channels can not be performed unless ch.0 is started up. 15. regulator amplifier block 1) operational explanation (1) a regulator amplifier is built in this ic which makes up a three terminal voltage regulator by the connec- tion of an external pnp transistor to di pin (pin 43) and do pin (pin 41). ch.0 output is exclusive-use for voltage step-up circuit control. therefore, if the power supply input is from v bat pin, it is possible to maintain ch.0 output in stabile state by using the regulator amplifier as shown below. (2) output circuit is open drain configuration. (3) output sink current is 20 ma (typ.). the circuit block of the regulator output part and the peripheral circuit example are shown in figure 20. figure 20 v ref pgnd0 29 25 drv0 41 do 43 di 42 dei v bat sv cc maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 37 sdh00015ieb application notes (continued) [2] functional descriptions of each block (continued) 16. overvoltage protection circuit block the protection circuit stops ch.0 output completely by cutting off the bias to the startup oscillation circuit if v batl pin (pin 47) voltage exceeds 4.2 v (typ.). 17. thermal protection circuit block this ic is incorporating the built-in temperature detection circuit. the protection circuit stops all channel outputs completely by cutting off the bias to the startup oscillation circuit if the temperature inside the ic exceeds 125 c (typ.). 18. assist driver circuit block 1) operational explanation (1) the output circuit is cmos configuration. (2) as the supplement to ch.0, an external power transistor is connected and used in parallel with ch.0. the output part circuit block is shown in figure 21. figure 21 pgnd0 drv0 v bat pwm0 asisut driver 26 asist 27 25 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 38 sdh00015ieb application circuit example ? application circuit example 1 (4 pcs of unit-3 battery: 3.6 v to 7.2 v) sgnd tosh v ref scp cosc rt ct ctl0 scp0 h-start sv cc v bat vo0 v batl pv cc1 pv cc2 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 mo2 ho2 lo2 di dei do pgnd0 eo0 pgnd1 out1 pnsw2 pv cc3 mo3 ho3 lo3 stop in0 in1 v bat v bat v bat v bat v bat v bat asist drv0 ss0 eo1 vo1 in1 h-start ctl1 eo2 vo2 in2 h-start ctl2 eo3 vo3 in3 h-start ctl3 eo4 vo4 in4 h-start ctl4 eo5 vo5 in5 h-start ctl5 eo6 vo6 in6 h-start ctl6 pnsw3 in2 in4 in3 v cc v cc v cc 5 v/0.05 a voltage step-up for ic drive v cc in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a voltage step-up/down sw (at step-down) 12 59 24 58 60 32 57 56 17 46 (high temperature: h) (h:frequency down) 11 10 5 19 8 pv cc1 pgnd1 44 vo0 v ref v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 45 dead time cont. (v batl input: h) (overvoltage: l) (h :total shut-down) pwm0 voltage descent overvoltage maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 39 sdh00015ieb application circuit example (continued) ? application circuit example 2 (li secondary battery ? 1: 2.8 v to 4.2 v) ? ch.2, ch.3 output fet (high-side): using n-ch. fet sgnd tosh v ref scp cosc rt ct ctl0 scp0 h-start sv cc v bat vo0 v batl pv cc1 pv cc2 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 mo2 ho2 lo2 di dei do pgnd0 eo0 pgnd1 out1 pnsw2 pv cc3 mo3 ho3 lo3 stop in0 in1 v bat v o1 v bat v o1 v bat v bat v bat asist drv0 ss0 eo1 vo1 in1 h-start ctl1 eo2 vo2 in2 h-start ctl2 eo3 vo3 in3 h-start ctl3 eo4 vo4 in4 h-start ctl4 eo5 vo5 in5 h-start ctl5 eo6 vo6 in6 h-start ctl6 pnsw3 in2 in4 in3 v cc v cc v cc 5 v/0.05 a voltage step-up for ic drive v cc in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a voltage step-up/down sw (at step-down) 12 59 24 58 60 32 57 56 17 46 (high temperature: h) (h:frequency down) 11 10 5 19 8 pv cc1 pgnd1 44 vo0 v ref v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 45 dead time cont. (v batl input: h) (overvoltage: l) (h :total shut-down) pwm0 voltage descent overvoltage maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 40 sdh00015ieb application circuit example (continued) ? application circuit example 3 (li secondary battery ? 2: 2.8 v to 4.2 v) ? ch.2, ch.3 output fet (high-side): using p-ch. fet sgnd tosh v ref scp cosc rt ct ctl0 scp0 h-start sv cc v bat vo0 v batl pv cc1 pv cc2 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 mo2 ho2 lo2 di dei do pgnd0 eo0 pgnd1 out1 pnsw2 pv cc3 mo3 ho3 lo3 stop in0 in1 v bat v o1 v bat v bat v bat asist drv0 ss0 eo1 vo1 in1 h-start ctl1 eo2 vo2 in2 h-start ctl2 eo3 vo3 in3 h-start ctl3 eo4 vo4 in4 h-start ctl4 eo5 vo5 in5 h-start ctl5 eo6 vo6 in6 h-start ctl6 pnsw3 in4 v cc v cc 5 v/0.05 a voltage step-up for ic drive in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a voltage step-up/down sw (at step-down) in2 in2 v o1 v o1 in3 12 59 24 58 60 32 57 56 17 46 (high temperature: h) (h:frequency down) 11 10 5 19 8 pv cc1 pgnd1 44 vo0 v ref v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 45 dead time cont. (v batl input: h) (overvoltage: l) (h :total shut-down) pwm0 voltage descent overvoltage maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 41 sdh00015ieb application circuit example (continued) ? application circuit example 4 (2 pcs of unit-3 battery ? 1 : 1.5 v to 3.6 v) ? ch.2, ch.3 output fet (high-side): using n-ch. fet sgnd tosh v ref scp cosc rt ct ctl0 scp0 h-start sv cc v bat vo0 v batl pv cc1 pv cc2 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 mo2 ho2 lo2 di dei do pgnd0 eo0 pgnd1 out1 pnsw2 pv cc3 mo3 ho3 lo3 stop in0 in1 v batl v o1 v o1 v o3 v batl v batl v batl asist drv0 ss0 eo1 vo1 in1 h-start ctl1 eo2 vo2 in2 h-start ctl2 eo3 vo3 in3 h-start ctl3 eo4 vo4 in4 h-start ctl4 eo5 vo5 in5 h-start ctl5 eo6 vo6 in6 h-start ctl6 pnsw3 in4 in3 v cc v cc 5 v/0.05 a voltage step-up for ic drive v cc in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a voltage step-up/down sw (at step-down) v o2 in2 v cc v batl 12 59 24 58 60 32 57 56 17 46 (high temperature: h) (h:frequency down) 11 10 5 19 8 pv cc1 pgnd1 44 vo0 v ref v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 45 dead time cont. (v batl input: h) (overvoltage: l) (h :total shut-down) pwm0 voltage descent overvoltage maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 42 sdh00015ieb application circuit example (continued) ? application circuit example 5 (2 pcs of unit-3 battery ? 2 : 1.5 v to 3.6 v) ? ch.2, ch.3 output fet (high-side): using p-ch. fet v o2 pv cc2 mo2 ho2 lo2 pnsw2 in2 v o1 v batl v o3 pv cc3 mo3 ho3 lo3 v o1 in3 sgnd tosh v ref scp cosc rt ct ctl0 scp0 h-start sv cc v bat vo0 pv cc1 ss1 ss2 ss3 ss ss4 drv4 drv5 ss5 drv6 ss6 di dei do pgnd0 eo0 pgnd1 out1 stop in0 in1 v batl v o1 v batl v batl v batl asist drv0 ss0 eo1 vo1 in1 h-start ctl1 eo2 vo2 in2 h-start ctl2 eo3 vo3 in3 h-start ctl3 eo4 vo4 in4 h-start ctl4 eo5 vo5 in5 h-start ctl5 eo6 vo6 in6 h-start ctl6 pnsw3 in4 v cc v cc 5 v/0.05 a voltage step-up for ic drive in6 in5 ch.1 5 v/1 a ch.3 1.5 v/0.3 a 1.8 v/0.3 a ch.6 back light 7 v/100 ma voltage step-up voltage step-up voltage step-down transformer drive ch.4-1 ccd main (15 v/30 ma) ch.4-2 ccd sub ( ? 8 v/10 ma) ch.5-1 lcd (12.4 v/30 ma) ch.5-2 lcd (3.7 v/60 ma) transformer drive ch.2 3.3 v/0.5 a voltage step-up/down sw (at step-down) v batl 12 59 24 58 60 32 57 56 17 46 (high temperature: h) (h:frequency down) 11 10 5 19 8 pv cc1 pgnd1 44 vo0 v ref v ref 1.26 v (allowance: 1%) v ref v ref temp. det. v cc - u.v.l.o. v bat - u.v.l.o. 0.55 v 1.40 v 1.5 v/ 2.5 v (voltage down: l) (voltage down: l) osc s r s.c.p.0 disc q 48 47 43 42 41 25 26 27 6 52 53 51 21 28 30 7 13 23 22 20 35 54 55 s.c.p. comp. error amp.1 1.6 v v ref v ref v ref v ref v ref 1.6v error amp.0 v ref v ref v ref v ref (por) (por) (disc) (por) latch pwm1 r s q q latch r s q q 36 61 62 s.c.p. comp. error amp.2 1.6 v v ref (por) latch pwm2 r s q q 37 49 50 s.c.p. comp. error amp.3 1.6 v v ref (por) latch pwm3 pwm4 pwm5 pwm6 r s q q 38 63 64 s.c.p. comp. error amp.4 1.6 v v ref (por) latch r s q q 39 1 2 s.c.p. comp. error amp.5 1.6 v v ref (por) latch r s q q 40 3 4 s.c.p. comp. error amp.6 1.6 v v ref (por) latch r s q q dead time cont. 29 9 pv cc1 pgnd1 34 33 31 18 16 pv cc1 pgnd1 14 pv cc1 pgnd1 15 pv cc1 pgnd1 45 dead time cont. (v batl input: h) (overvoltage: l) (h :total shut-down) pwm0 voltage descent overvoltage maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ AN30210A 43 sdh00015ieb new package dimensions (unit: mm) ? lqfp064-p-0707b (lead-free package) parameter symbol recommended value unit timing resister r t 33 k ? timing capacitor c t 180 pf oscillator frequency f out 550 khz constant setting capacitance at ch.0 short-circuit c scp0 0.15 f and v batl over-voltage protection operating constant setting capacitance at ch.1 to ch.6 c scp 0.1 f short-circuit and thermal protection operating constant setting capacitance at soft start c ss 20 nf recommended operating conditions 32 33 17 16 48 49 1 0 to 10 64 0.15 0.05 (0.50) 1.70 max 0.10 0.10 1.40 0.10 seatingplane 9.00 0.20 7.00 0.20 (1.00) 0.50 0.20 (0.50) 0.16 0.05 9.00 0.20 7.00 0.20 0.40 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ request for your special attention and precautions in using the technical information and semiconductors described in this book (1) if any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) the technical information described in this book is intended only to show the main characteristics and application circuit examples of the products, and no license is granted under any intellectual property right or other right owned by our company or any other company. therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other company which may arise as a result of the use of technical information described in this book. (3) the products described in this book are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). consult our sales staff in advance for information on the following applications: ? special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the prod- ucts may directly jeopardize life or harm the human body. ? any applications other than the standard applications intended. (4) the products and product specifications described in this book are subject to change without notice for modification and/or im- provement. at the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date product standards in advance to make sure that the latest specifications satisfy your requirements. (5) when designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. otherwise, we will not be liable for any defect which may arise later in your equipment. even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. (6) comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (esd, eos, thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. when using products for which damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages. (7) this book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of matsushita electric industrial co., ltd. maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://www.semicon.panasonic.co.jp/en/ |
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