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boost type voltage regulator with reset r1151n series 1 r1151n_e.doc/2003/07/14 no. ea-092-0307 outline the r1151n series are cmos-based boost type voltage regulator ics with high output voltage accuracy, low sup- ply current, and high ripple rejection. each of these voltage regulator controllers consists of a voltage reference unit, an error amplifier, comparators, resistors for output and reset voltage setting, a current limit protection circuit, and a chip enable circuit. in addition to low consumption current by cmos process, the chip enable function prolongs the battery life. dy- namic response and ripple rejection of the r1151n series are excellent, further these are low noise type, plus maxi- mum operating input voltage tolerance is up to 18.5v, thus these ics are very suitable for the power supply for hand- held equipment and other power management applications using ac adapter input voltage. the output voltage of these ics is internally fixed with high accuracy. since the package for these ics is sot-23-6 (mini-mold) package, high density mounting of the ics on boards is possible. features ? ultra-low supply current ............................................... typ. 70a (i out =0ma) ? standby mode ................................................................... typ. 0.1a ? low dropout voltage ....................................................... typ. 0.1v (i out =100ma *depends on external transistor) ? high ripple rejection ...................................................... typ. 60db (f=1khz) ? low temperature-drift coefficient of output voltage ....... typ. 100ppm/c ? high output voltage accuracy ........................................ 2.0% ? excellent dynamic response ? small package .................................................................. sot-23-6 (mini-mold) ? output voltage.................................................................. stepwise setting with a step of 0.1v in the ran ge of 2.5v to 9.0v ? built-in chip enable circuit (2 types; a: active low, b: active high) ? output capacitor .............................................................. tantalum type recommendation (or ceramic+series r esistor) ? built-in output voltage detector ...................................... with delay (c version) ? detector threshold tolerance......................................... 2.5% ? detector threshold voltage ............................................ stepwise setting with a step of 0.1v in the range of 1.7 v to 8.0v ? operating input voltage ................................................... max. 18.5v applications ? power source for handheld equipment such as cameras and videos. ? power source for home appliances. ? power source for battery-powered equipment.
r1151n 2 block diagrams r1151nxxxb 6 2 5 v out gnd v dd v det - + vref 3 + - 4 ce vref ext 1 current limit r1151nxxxc 6 2 5 v out gnd v dd v det - + vref 3 + - 4 cd vref ext 1 current limit selection guide the output voltage, mask option code, and the taping type for the ics can be selected at the user's request. the selection can be made with designating the part number as shown below; r1151nxxxx-xx part number ab c code contents a code number for voltage setting b setting mask option : a: with ce (active at "l" type) b: with ce (active at "h" type) c: with the pin for external capacitor to set the output delay of voltage detector c designation of taping type : ex. tr (refer to taping specifications.)
r1151n 3 pin configuration sot-23-6 12 3 ext v det v out 64 (mark side) 5 v dd ce/cd gnd pin descriptions pin no. symbol description 1 ext external transistor drive pin 2v det voltage detector output pin 3v out voltage regulator output pin 4 ce or ce chip enable pin (a/b version) 4 cd pin for external capacitor to set output delay of voltage detector (c version) 5 gnd ground pin 6v dd input pin absolute maximum ratings symbol item rating unit v in input voltage 20 v v ce/cd input voltage ( ce /ce/cd pin) -0.3 v in +0.3 v v out output voltage (v out pin) -0.3 v in +0.3 v v ext output voltage (ext pin) -0.3 v in +0.3 v v det output voltage (v det pin) -0.3 v in +0.3 v i ext ext output current 30 ma p d power dissipation 150 mw topt operating temperature range -40 ~ 85 c tstg storage temperature range -55 ~ 125 c
r1151n 4 electrical characteristics ? r1151nxxxa/b topt=25c symbol item conditions min. typ. max. unit v out output voltage v in = set v out +1v i out = 50ma v out 0.98 v out 1.02 v i out output current v in - v out = 1.0v 1 note a ? v out / ? i out load regulation v in = set v out +1v 1ma i out 100ma refer to the load regulation table v dif dropout voltage i out = 100ma 0.1 note 0.2 v i ss supply current v in = set v out +1v, i out = 0ma 70 100 a istandby supply current (standby) v in = 18.5v 15 a i ext leak ext leakage current 0.5 a ? v out / ? v in line regulation set v out +0.5v v in 18.5v i out = 50ma 0.00 0.02 0.10 %/v rr ripple rejection f = 1khz, ripple 0.5vp-p v in = set v out +1v 60 db v in input voltage 18.5 v ? v out / ? t output voltage temperature coefficient i out = 10ma -40c to p t 85c 100 ppm /c ilim current limit base current i b of pnp tr. v in - v out = 1.0v 827ma i rpt short current limit base current i b of pnp tr. v out = 0v 0.7 ma r ud ce /ce pull-up/down resistance 2m ? v ceh ce /ce input voltage "h" 1.5 v in v v cel ce /ce input voltage "l" 0.00 0.25 v -v det detector threshold -v det 0.975 -v det 1.025 v v hys detector threshold hysteresis range -v det 0.03 -v det 0.05 -v det 0.07 v i out2 output current 2 v dd = 1.5v, v ds = 0.5v 2.0 5.0 10.0 ma ? v det / ? t detector threshold temperature coefficient -40c to p t 85c 100 ppm /c tplh output delay time 0.1 ms v ddl minimum operating voltage 0.9 1.1 v note: this item depends on the capability of external pnp transistor. use low saturation type transistor with hfe value range of 100 to 300.
r1151n 5 ? r1151nxxxc topt=25c symbol item conditions min. typ. max. unit v out output voltage v in = set v out +1v i out = 50ma v out 0.98 v out 1.02 v i out output current v in - v out = 1.0v 1 *note1 a ? v out / ? i out load regulation v in = set v out +1v 1ma i out 100ma refer to the load regulation table v dif dropout voltage i out = 100ma 0.1 *note1 v i ss supply current v in = set v out +1v, i out = 0ma 70 100 a i ext leak ext leakage current 0.5 a ? v out / ? v in line regulation set v out +0.5v v in 18.5v i out = 50ma 0.00 0.02 0.10 %/v rr ripple rejection f = 1khz, ripple 0.5vp-p v in = set v out +1v 60 db v in input voltage 18.5 v ? v out / ? t output voltage temperature coefficient i out = 10ma -40c to p t 85c 100 ppm /c ilim current limit base current i b of pnp tr. v in - v out = 1.0v 827ma i rpt short current limit base current i b of pnp tr. v out = 0v 0.7 ma -v det detector threshold -v det 0.975 -v det 1.025 v v hys detector threshold hysteresis range -v det 0.03 -v det 0.05 -v det 0.07 v i out2 output current 2 v dd = 1.5v, v ds = 0.5v 2.0 5.0 10.0 ma ? v det / ? t detector threshold temperature coefficient -40c to p t 85c 100 ppm /c tplh output delay time cd=220pf *note2 0.9 1.6 2.7 ms v ddl minimum operating voltage 0.9 1.1 v note1:this item depends on the capability of external pnp transistor. use low saturation type transistor with hfe value range of 100 to 300. note2:v det pin is pulled-up to v dd via 470k ? resistance. the time is between the rising edge of v out level from 0.9v to (+v det )+2.0v and the reaching point to ((+v det )+2.0v)/2 of the v det output voltage.
r1151n 6 ? load regulation table load regulation ? ? ? ? v out / ? ? ? ? i out (mv) output voltage v out (v) typ. max. 2.5 to 3.3 20 60 3.4 to 5.0 30 90 5.1 to 7.0 40 130 7.1 to 9.0 50 160 operation in these ics, fluctuation of output voltage, v out is detected by the feed-back registers, and the result is compared with a reference voltage with the error amplifier and control the base current of an external pnp transistor so that a constant voltage is output. the base current is monitored with the base current limit circuit. if the base current may be too large, the protection circuit works, further, output voltage is monitored with the built-in voltage detector. if the set detector threshold voltage is detected, reset signal will be output. technical notes when using these ics, consider the following points: in these ics, phase compensation is made for securing stable operation even if the load current is varied. for this pur- pose, be sure to use as much as 10f capacitor as cl with good frequency characteristics and esr (equivalent series resistance). the best suitable equivalent series resistor value (esr) is approximately 1 ? . if the esr of the output capacitor is too large, output may be unstable, therefore fully evaluation is necessary. make v dd and gnd lines sufficient. when their impedance of these is high, noise pickup or unstable operation may be the result. connect a capacitor with a capacitance value of as much as 10f between v dd and gnd as close as possible to these pins. set external components, especially output capacitor, as close as possible to the ics. refer to the next equation to calculate the output delay time of c version and decide the capacitance value for the de- lay time. tplh =1.83 c/(300 10 -9 ) c: capacitance value (f) recommended pull-up resistance (r1) value is 470k ? . if the value is too small, released voltage may shift, therefore, use 10k ? or more value resistor.
r1151n 7 test circuits 6 3 4 2 r1151nxxc r1 1 v det v in 5 i out pnp c2 c1 6 3 4 2 r1151nxxc 1 v in 5 i out pnp c2 c1 fig.1 standard test circuit fig.2 supply current test circuit r1=470k ? ? ? ? c1=220pf, c2=10f c1=220pf, c2=10f 6 3 4 2 r1151nxxc 1 v in 5 i out pnp c2 c1 p .g. 6 3 4 2 r1151nxxc 1 v in 5 i out pnp c2 c1 p .g. fig.3 ripple rejection, line transient response test circuit fig.4 load transient response test circuit c1=220pf, c2=10f c1=220pf, c2=10f typical application cd v det r1151nxxxc gnd out ext v out cl r1 v dd reset + ci + cd + in pnp tr (external components) c1 10f r1=470k ? pnp tr.: 2sa1441, 2sb940, 2sb703 cl 10f
r1151n 8 typical characteristics 1) output voltage vs. output current (topt=25c) a. external tr.: 2sa1441 r1151n (vr=9.0v) r1151n (vr=5.0v) 10.00 9.00 8.00 7.00 5.00 4.00 6.00 3.00 2.00 1.00 0.00 output current i out (ma) output voltage v rout (v) 0 500 1000 2000 2500 3500 4000 3000 1500 v in =9.3v v in =9.5v v in =11v v in =10v 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 output current i out (ma) output voltage v rout (v) 0 500 1000 2000 2500 3500 4000 3000 1500 v in =5.3v v in =5.5v v in =6v v in =7v r1151n (vr=3.3v) r1151n (vr=2.5v) 3.50 3.25 0.00 output current i out (ma) output voltage v rout (v) 0 500 1000 2000 2500 3500 4000 3000 1500 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 v in =5.3v v in =4.3v v in =3.8v v in =3.6v 0.00 output current i out (ma) output voltage v rout (v) 0 500 1000 2000 2500 3500 4000 3000 1500 1.50 2.50 2.00 1.00 0.50 3.00 v dd =4.5v v dd =3.5v v dd =3.0v v dd =2.8v b. external tr.:2sb940 r1151n (vr=9.0v) r1151n (vr=5.0v) 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 9.00 8.00 7.00 6.00 5.00 4.00 3.00 2.00 1.00 10.00 v dd =11.0v v dd =10.0v v dd =9.5v v dd =9.3v 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 5.00 4.00 3.00 2.00 1.00 6.00 v dd =7.0v v dd =6.0v v dd =5.3v v dd =5.5v
r1151n 9 r1151n (vr=3.3v) r1151n (vr=2.5v) 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 3.50 3.00 2.50 2.00 1.50 1.00 0.50 4.00 v dd =5.3v v dd =4.3v v dd =3.8v v dd =3.6v 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 2.50 2.00 1.50 1.00 0.50 3.00 v dd =4.5v v dd =3.5v v dd =3.0v v dd =2.8v c. external tr.:2sb703 r1151n (vr=9.0v) r1151n (vr=5.0v) 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 9.00 8.00 7.00 6.00 5.00 4.00 3.00 2.00 1.00 10.00 v in =11.0v v in =10.0v v in =9.5v v in =9.3v 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 5.00 4.00 3.00 2.00 1.00 6.00 v in =7.0v v in =6.0v v in =5.5v v in =5.3v r1151n (vr=3.3v) r1151n (vr=2.5v) 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 0.50 1.00 1.50 2.00 2.50 3.00 3.50 v in =5.3v v in =4.3v v in =3.8v v in =3.6v 0.00 output current i out (ma) output voltage v rout (v) 0 100 200 300 400 500 600 700 800 1000 1100 900 2.50 3.00 2.00 1.50 1.00 0.50 v in =4.5v v in =3.5v v in =3.0v v in =2.8v
r1151n 10 d. output voltage vs. base current (topt=25 c) vr=9.0v vr=5.0v 0.00 base current i ext (ma) output voltage v rout (v) 02 16 18 14 12 10 8 6 4 9.00 10.00 8.00 7.00 6.00 4.00 5.00 3.00 2.00 1.00 0.00 base current i ext (ma) output voltage v rout (v) 02 16 18 14 12 10 8 6 4 5.00 6.00 4.00 3.00 2.00 1.00 vr=3.3v vr=2.5v 0.00 base current i ext (ma) output voltage v rout (v) 02 16 14 12 10 8 6 4 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 base current i ext (ma) output voltage v rout (v) 02 18 16 14 12 10 8 6 4 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 2) output voltage vs. input voltage (topt=25 c) external transistor: 2sa1441 r1151n (vr=5.0v) r1151n (vr=3.3v) 1.00 input voltage v in (v) output voltage v out (v) 01 2 3 17 18 14 15 16 13 12 10 11 8 9 6 7 5 4 6.00 5.00 4.00 3.00 2.00 i out =0ma i out =500ma 1.00 input voltage v in (v) output voltage v out (v) 01 2 3 17 18 14 15 16 13 12 10 11 8 9 6 7 5 4 4.00 3.50 3.00 2.50 2.00 1.50 i out =0ma i out =500ma
r1151n 11 r1151n (vr=2.5v) 1.00 input voltage v in (v) output voltage v out (v) 01 2 3 17 18 14 15 16 13 12 10 11 8 9 6 7 5 4 3.00 2.75 2.50 2.25 2.00 1.50 1.75 1.25 i out =0ma i out =500ma 3) output voltage vs. temperature r1151n (vr=5.0v) r1151n (vr=3.3v) 5.125 5.075 4.875 temperature topt( c) output voltage v rout (v) -40 -15 85 5.025 4.975 4.925 10 35 60 v in =6.0v i out =80ma 3.375 3.355 3.215 temperature topt( c) output voltage v rout (v) -40 -15 85 3.335 3.315 3.295 3.275 3.255 3.235 10 35 60 v in =4.3v i out =80ma r1151n (vr=2.5v) 2.538 2.438 temperature topt( c) output voltage v rout (v) -40 -15 85 2.513 2.488 2.463 10 35 60 v in =3.5v i out =80ma
r1151n 12 4) supply current vs. input voltage external tr.:2sa1441 r1151n (vr=9.0v, -vd=8.0v) r1151n (vr=5.0v, -vd=4.2v) 150 140 0 input voltage v in (v) 0 10 20 40 30 60 50 80 70 100 90 120 110 130 18 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 i out =0ma supply current i ss ( a) 150 140 0 input voltage v in (v) 0 10 20 40 30 60 50 80 70 100 90 120 110 130 18 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 i out =0ma supply current i ss ( a) r1151n (vr=3.3v, -vd=2.9v) 150 140 0 input voltage v in (v) 0 10 20 40 30 60 50 80 70 100 90 120 110 130 18 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 i out =0ma supply current i ss ( a) 5) supply current vs. temperature a. external tr.:2sa1441 r1151n (vr=9.0v) r1151n (vr=5.0v) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 v in =10v i out =0ma supply current i ss ( a) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 v in =6v i out =0ma supply current i ss ( a)
r1151n 13 r1151n (vr=3.3v) r1151n (vr=2.5v) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a) b. external tr.:2sb703 r1151n (vr=9.0v) r1151n (vr=5.0v) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a) r1151n (vr=3.3v) r1151n (vr=2.5v) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a) 100 90 0 temperature topt( c) -40 -15 85 80 70 60 50 40 30 20 10 10 35 60 supply current i ss ( a)
r1151n 14 6) ripple rejection vs. ripple frequency (topt=25 c) r1151n (vr=9.0v) r1151n (vr=5.0v) 80 60 10 0 ripple frequency (khz) ripple rejection rr(db) 0.01 0.1 1 10 100 50 40 30 20 70 v in =10vdc+0.5vp-p, iout=50ma, cl=10 f 2sb703 2sa1441 2sb940 80 60 10 0 ripple frequency (khz) ripple rejection rr(db) 0.01 0.1 1 10 100 50 40 30 20 70 v in =6vdc+0.5vp-p, iout=50ma, cl=10 f 2sb703 2sa1441 2sb940 r1151n (vr=3.3v) r1151n (vr=2.5v) 80 60 10 0 ripple frequency (khz) ripple rejection rr(db) 0.01 0.1 1 10 100 50 40 30 20 70 v in =4.3vdc+0.5vp-p, iout=50ma, cl=10 f 2sb703 2sa1441 2sb940 70 10 0 ripple frequency (khz) ripple rejection rr(db) 0.01 0.1 1 10 100 20 30 40 50 60 v in =3.5vdc+0.5vp-p, iout=50ma, cl=10 f 2sb703 2sa1441 2sb940 7) ripple rejection vs. temperature r1151n (vr=5.0v) r1151n (vr=3.3v) ripple rejection rr(db) v in =6vdc+0.5vp-p, iout=50ma, cl=10 f 75 73 temperature topt( c) -40 -15 85 71 69 67 65 63 61 59 57 55 10 35 60 2sb703 2sa1441 2sb940 ripple rejection rr(db) v in =4.3vdc+0.5vp-p, iout=50ma, cl=10 f 75 73 temperature topt( c) -40 -15 85 71 69 67 65 63 61 59 57 55 10 35 60 2sb703 2sa1441 2sb940
r1151n 15 r1151n (vr=2.5v) ripple rejection rr(db) v in =3.5vdc+0.5vp-p, iout=50ma, cl=10 f 70 temperature topt( c) -40 -15 85 65 60 55 50 45 10 35 60 2sb703 2sa1441 2sb940 8) input transient response(topt=25 c) a. external tr.:2sa1441 r1151n (vr=5.0v) r1151n (vr=3.3v) i out =50ma c out =ceramic 10 f 5.030 4.990 7 6 5 4 3 2 1 0 8 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 5.020 5.010 5.000 input voltage output voltage i out =50ma c out =ceramic 10 f 3.340 3.280 5 0 6 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 3.330 4 3.320 3 3.310 2 3.300 1 3.290 input voltage output voltage r1151n (vr=2.5v) i out =50ma c out =ceramic 10 f 2.535 2.485 4 0 5 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 2.525 3 2.515 2 2.505 1 2.495 input voltage output voltage
r1151n 16 b. external tr.: 2sb703 r1151n (vr=5.0v) r1151n (vr=3.3v) i out =50ma c out =ceramic 10 f 5.030 4.990 7 0 8 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 5.025 6 5.020 5 5.015 4 5.010 3 5.005 2 5.000 1 4.995 input voltage output voltage i out =50ma c out =ceramic 10 f 3.340 3.280 5 0 6 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 3.330 4 3.320 3 3.310 2 3.300 1 3.290 input voltage output voltage r1151n (vr=2.5v) i out =50ma c out =ceramic 10 f 2.535 2.485 4 0 5 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 2.525 3 2.515 2 2.505 1 2.495 input voltage output voltage c. external tr. : 2sb940 r1151n (vr=5.0v) r1151n (vr=3.3v) i out =50ma c out =ceramic 10 f 5.030 4.990 0 8 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 6 5.020 7 5.025 5 5.015 4 5.010 3 5.005 1 4.995 2 5.000 input voltage output voltage i out =50ma c out =ceramic 10 f 3.340 3.280 0 6 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 5 3.330 4 3.320 3 3.310 2 3.300 1 3.290 input voltage output voltage
r1151n 17 r1151n (vr=2.5v) i out =50ma c out =ceramic 10 f 2.535 2.485 0 5 time ( s) input voltage v in (v) 25 0 output voltage v out (v) 50 75 100 125 150 175 200 225 250 4 2.525 3 2.515 2 2.505 1 2.495 input voltage output voltage 9) load transient response (topt=25 c) a: external tr.: 2sa1441 r1151n (vr=5.0v) r1151n (vr=3.3v) v in =6.0v c in =ceramic 4.7 f c out =ceramic 10 f 5.05 4.99 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 5.04 80 5.03 60 5.02 40 5.01 20 5.00 output voltage output current v in =4.3v c in =ceramic 4.7 f c out =ceramic 10 f 3.35 3.29 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 3.34 80 3.33 60 3.32 40 3.31 20 3.30 output voltage output current r1151n (vr=2.5v) v in =3.5v c in =ceramic 4.7 f c out =ceramic 10 f 2.55 2.49 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 2.54 80 2.53 60 2.52 40 2.51 20 2.50 output current output voltage
r1151n 18 b. external tr.: 2sb703 r1151n (vr=5.0v) r1151n (vr=3.3v) v in =6.0v c in =ceramic 4.7 f c out =ceramic 10 f 5.05 4.99 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 5.04 80 5.03 60 5.02 40 5.01 20 5.00 output voltage output current v in =4.3v c in =ceramic 4.7 f c out =ceramic 10 f 3.35 3.29 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 3.34 80 3.33 60 3.32 40 3.31 20 3.30 output current output voltage r1151n (vr=2.5v) v in =3.5v c in =ceramic 4.7 f c out =ceramic 10 f 2.55 2.49 0 120 time ( s) output current i out (ma) 100 0 output voltage v out (v) 200 300 400 500 600 700 800 900 1000 100 2.54 80 2.53 60 2.52 40 2.51 20 2.50 output current output voltage 10) detector threshold vs. temperature r1151n (-v det =8.0v) r1151n (-v det =4.2v) 8.70 8.60 7.80 temperature topt( c) detector threshold v det (v) -40 -15 85 8.50 8.40 8.30 8.20 8.10 8.00 7.90 10 35 60 4.60 4.00 temperature topt( c) detector threshold v det (v) -40 -15 85 4.50 4.40 4.30 4.20 4.10 10 35 60
r1151n 19 r1151n (-v det =2.9v) r1151n (-v det =1.7v) 3.10 2.80 temperature topt( c) detector threshold v det (v) -40 -15 85 3.05 3.00 2.95 2.90 2.85 10 35 60 1.85 1.60 temperature topt( c) detector threshold v det (v) -40 -15 85 1.80 1.75 1.70 1.65 10 35 60 11) v det output voltage vs. input voltage r1151n (-v det =8.0v pull-up to v dd ) r1151n (-v det =8.0v pull-up to 5v) 9.0 8.0 6.0 5.0 3.0 2.0 0.0 1.0 input voltage v in (v) v det output voltage vd out (v) 01 3 56 89 4.0 4 7 2 7.0 topt=-40 c topt=25 c topt=85 c 6.00 5.00 4.00 2.00 0.00 1.00 input voltage v in (v) v det output voltage vd out (v) 01 3 56 89 3.00 4 7 2 topt=-40 c topt=25 c topt=85 c r1151n (-v det =4.2v pull-up to v dd ) r1151n (-v det =4.2v pull-up to 5v) 5.0 4.5 3.5 3.0 1.5 1.0 0.0 0.5 input voltage v in (v) v det output voltage vd out (v) 0 0.5 2 3 3.5 4.5 5 2.0 2.5 2.5 4 1 1.5 4.0 topt=-40 c topt=25 c topt=85 c 6.0 5.0 4.0 2.0 0.0 1.0 input voltage v in (v) v det output voltage vd out (v) 0 0.5 2 3.5 4 5.5 6 3.0 2.5 3 5 4.5 1 1.5 topt=-40 c topt=25 c topt=85 c
r1151n 20 r1151n (-v det =2.9v pull-up to v dd ) r1151n (-v det =2.9v pull-up to 5v) 4.0 3.5 3.0 2.5 1.0 0.0 0.5 input voltage v in (v) v det output voltage vd out (v) 0 0.5 2 3 3.5 1.5 2.0 2.5 4 1 1.5 topt=-40 c topt=25 c topt=85 c 6.0 5.0 4.0 2.0 0.0 1.0 input voltage v in (v) v det output voltage vd out (v) 0 0.5 2 3.5 4 5.5 6 3.0 2.5 3 5 4.5 1 1.5 topt=-40 c topt=25 c topt=85 c r1151n (-v det =1.7v pull-up to v dd ) r1151n (-v det =1.7v pull-up to 5v) 2.5 2.3 1.8 1.5 0.8 0.5 0.0 0.3 input voltage v in (v) v det output voltage vd out (v) 0 0.25 1 1.5 1.75 2.25 2.5 1.0 1.3 1.25 2 0.5 0.75 2.0 topt=-40 c topt=25 c topt=85 c 6.0 5.0 4.0 2.0 0.0 1.0 input voltage v in (v) v det output voltage vd out (v) 0 0.5 2 3.5 4 5.5 6 3.0 2.5 3 5 4.5 1 1.5 topt=-40 c topt=25 c topt=85 c 12) nch driver output current vs. v ds (topt=25 c) r1151n (-v det =8.0v) r1151n (-v det =4.2v) 140 120 60 100 80 40 20 0 v ds (v) output current i out (ma) 01234 6 10 5 7 8 9 v dd =7.5v v dd =7.0v v dd =6.5v v dd =6.0v v dd =5.5v v dd =5.0v v dd =4.5v v dd =4.0v v dd =3.5v v dd =3.0v v dd =2.5v v dd =2.0v v dd =1.5v v dd =1.0v 60 50 20 40 30 10 0 v ds (v) output current i out (ma) 01234 6 5 v dd =4.0v v dd =3.5v v dd =3.0v v dd =2.5v v dd =2.0v v dd =1.5v v dd =1.0v
r1151n 21 r1151n (-v det =2.9v) r1151n (-v det =1.7v) 30 25 10 20 15 5 0 v ds (v) output current i out (ma) 0 0.5 1 1.5 2 3 2.5 v dd =2.5v v dd =2.0v v dd =1.5v v dd =1.0v 8 7 3 5 4 1 0 v ds (v) output current i out (ma) 0 0.5 1 1.5 2 2 6 v dd =1.5v v dd =1.25v v dd =1.0v 13) nch driver output current vs. input voltage r1151n (-v det =8.0v) r1151n (-v det =4.2v) output current i out (ma) 40 35 25 20 15 10 0 input voltage v in (v) 02 6810 5 30 4 topt=25 c topt=-40 c topt=85 c output current i out (ma) 40 35 25 20 15 10 0 input voltage v in (v) 01 345 5 30 2 topt=25 c topt=-40 c topt=85 c r1151n (-v det =2.9v) r1151n (-v det =1.7v) output current i out (ma) 40 35 25 20 15 10 0 input voltage v in (v) 01 34 5 30 2 topt=25 c topt=-40 c topt=85 c output current i out (ma) 40 35 25 20 15 10 0 input voltage v in (v) 0 1 2 2.5 5 30 0.5 1.5 topt=25 c topt=-40 c topt=85 c
r1151n 22 14) cd pin threshold voltage vs. temperature r1151n (-v det =8.0v) r1151n (-v det =1.7v) 3.0 1.8 1.4 2.2 2.8 1.0 temperature topt( c) cd pin threshold voltage vtcd(v) -40 10 35 85 1.6 1.2 2.0 2.6 2.4 -15 60 h l l h 3.0 1.8 1.4 2.2 2.8 1.0 temperature topt( c) cd pin threshold voltage vtcd(v) -40 10 35 85 1.6 1.2 2.0 2.6 2.4 -15 60 h l l h 15) cd pin output current vs. input voltage r1151n (-v det =8.0v) r1151n (-v det =4.2v) 0.45 0.40 0.25 0.15 0.05 0.00 input voltage v in (v) cd pin output current i out (ma) 0.0 4.0 2.0 6.0 8.0 9.0 0.10 0.20 0.35 0.30 3.0 1.0 7.0 5.0 topt=-40 c topt=25 c topt=85 c 0.45 0.40 0.25 0.15 0.05 0.00 input voltage v in (v) cd pin output current i out (ma) 0.0 2.5 1.0 3.5 4.5 5.0 0.10 0.20 0.35 0.30 1.5 0.5 4.0 2.0 3.0 topt=-40 c topt=25 c topt=85 c r1151n (-v det =2.9v) r1151n (-v det =1.7v) 0.45 0.40 0.25 0.15 0.05 0.00 input voltage v in (v) cd pin output current i out (ma) 0.0 2.5 1.0 3.5 0.10 0.20 0.35 0.30 1.5 0.5 2.0 3.0 topt=-40 c topt=25 c topt=85 c 0.45 0.40 0.25 0.15 0.05 0.00 input voltage v in (v) cd pin output current i out (ma) 0.0 1.4 0.6 2.0 0.10 0.20 0.35 0.30 0.8 1.0 0.2 0.4 1.6 1.2 1.8 topt=-40 c topt=25 c topt=85 c
r1151n 23 16) cd pin output current vs. v ds (topt=25 c) r1151n (-v det =8.0v) r1151n (-v det =4.2v) 6 5 2 4 3 1 0 v ds (v) cd pin output current i out (ma) 01234 6 5 7 8 9 v dd =7.5v v dd =7.0v v dd =6.5v v dd =4.5v v dd =4.0v v dd =3.5v v dd =3.0v v dd =2.5v v dd =2.0v v dd =1.5v v dd =6.0v v dd =5.5v v dd =5.0v 2.5 2.0 0.5 1.5 1.0 0 v ds (v) cd pin output current i out (ma) 0 0.5 1.5 2 2.5 3.5 1 3 4 4.5 5 v dd =4.0v v dd =3.5v v dd =3.0v v dd =2.5v v dd =2.0v v dd =1.5v r1151n (-v det =2.9v) r1151n (-v det =1.7v) 1.00 0.90 0.20 0.60 0.40 0.00 v ds (v) cd pin output current i out (ma) 0 0.5 1 1.5 2 0.10 0.30 0.80 0.70 0.50 2.5 3 v dd =2.4v v dd =2.0v v dd =1.5v 0.20 0.18 0.04 0.12 0.08 0.00 v ds (v) cd pin output current i out (ma) 0 0.25 0.5 0.75 1.25 0.02 0.06 0.16 0.14 0.10 1 1.5 1.75 v dd =1.2v v dd =1.5v 17) output delay time of release vs. temperature r1151n (-v det =8.0v) r1151n (-v det =1.7v) 3.00 2.75 1.75 1.00 0.50 external capacitance=220pf temperature topt( c) output delay time of release tplh(ms) -40 10 35 85 -15 60 0.75 1.50 1.25 2.50 2.25 2.00 3.00 2.75 1.75 1.00 0.50 external capacitance=220pf temperature topt( c) output delay time of release tplh(ms) -40 10 35 85 -15 60 0.75 1.50 1.25 2.50 2.25 2.00
r1151n 24 18) output delay time of release vs. external capacitance for cd pin (topt=25 c) r1151n (-v det =8.0v) r1151n (-v det =1.7v) 100 10 1 0.1 external capacitance for cd pin cd(pf) output delay time of release tplh(ms) 10 100 1000 100 10 1 0.1 external capacitance for cd pin cd(pf) output delay time of release tplh(ms) 10 100 1000 19) output delay time of detect vs. external capacitance for cd pin (topt=25 c) r1151n (-v det =8.0v) r1151n (-v det =4.2v) 10 1 external capacitance for cd pin cd(pf) output delay time of detect tphl ( s) 10 100 1000 10 1 external capacitance for cd pin cd(pf) output delay time of detect tphl ( s) 10 100 1000 r1151n (-v det =2.9v) r1151n (-v det =1.7v) 10 1 external capacitance for cd pin cd(pf) output delay time of detect tphl ( s) 10 100 1000 10 1 external capacitance for cd pin cd(pf) output delay time of detect tphl ( s) 10 100 1000
r1151n 25 calculation of output delay time of release tplh(s)=1.83 c/(300 10 -9 ) tphl vs. capacitance 30 25 0 external capacitance for cd pin (pf) 0 2000 released delay time tplh(ms) 1000 4000 3000 5000 20 15 10 5 measured value calculated value for stable operation phase compensation in these ics, phase compensation is externally made for securing stable operation even if the load current is varied. for this purpose, be sure to use a capacitor for the output pin with good frequency characteristics and esr (equivalent series resistance) of which is in the range described as follows: r1151nxxxxc v in i out ext v out gnd v in s.a. v det cd spectrum analyser ceramic capacitance 10 f ceramic capacitor 4.7 f esr measuring circuit for white noise; r1151nxxxc the relations between i out (output current) and esr of output capacitor are shown below. the conditions when the white noise level is under 40v (avg.) are marked as the hatched area in the graph. (1) v in =v out +1v (2) frequency band: 10hz to 1mhz (3) temperature: 25c (4) c out : ceramic 10f; esr=0.075 ? (10khz)
r1151n 26 vr=2.5v (2sa1441) vr=9.0v (2sa1441) 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450 vr=2.5v (2sb703) vr=9.0v (2sb703) 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450 vr=2.5v (2sb940) vr=9.0v (2sb940) 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450 100 10 1 0.1 0.01 output current i out (ma) 0 250 300 350 50 100 150 200 500 equivalent series resistance esr ( ? ) 400 450

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