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silicon monolithic integrated circuit power management circuit for portable devices pin connections order this document by mc33283/d 1 ftb suffix plastic package case 873b02 (tqfp32) device package ordering information mc33283ftb28,r2 tqfp32 temperature range 32 20 c to +70 c 124 23 22 21 20 19 18 17 2 3 4 5 6 7 8 (top view) mc33283 25 26 27 28 29 30 31 32 16 15 14 13 12 11 10 9 uvlo2 gnd_cp en3 gnd por sel gnd en5 en6 gnd vcc1 out5 out2 out3 gnd out7 en7 vcc2 gnd out1 cbyp gnd en2 enrs b1 gnd d1 vs1in vin bub gnd out6 1 motorola device data
the mc33283 is a complete power management solution for portable devices such as telephone handsets, twoway radios, etc. thanks to its large scale integration, the device offers up to seven low dropout regulators (ldo), two of them delivering a voltage higher than the battery's. despite the presence of an internal charge pump, the overall noise specification makes the circuit an ideal candidate where noise is an important feature. outputs deliver 40 m vrms typical (10100khz) at nominal output current. with a 50db ripple rejection under 10khz, the circuit naturally shields the downstream electronics against dc choppy lines. this parameter guarantees a clean operation for battery operated devices. finally, housed in a compact thin quad flat pack tqfp32 package, the mc33283 gathers all the features necessary to power future portable radios. features: ? 6 regulated outputs: 2.85v, four outputs: 10135ma 4.75v @ 15ma 5.0v @ 20ma ? lownoise: 40 m vrms at nominal output levels (10hz100khz) ? ultralow reverse current in off mode (200na typical) ? twomode regulator: output 5 switches from 3 to 5v with sel pin activated ? thermal shutdown for a rugged and reliable operation ? all outputs are shortcircuit proof applications: ? all portable radios (gsm etc.) ? bursting systems (tdma etc.) ? battery operated devices ? motorola, inc. 1999 rev 1, 08/1999
mc33283 2 motorola device data simplified block diagram bub out1 out2 out3 out5 out6 out7 gnd v in gnd cp b1 d1 charge pump on/off6 v ref on/off7 v ref r6 r7 v cc 1 v cc 1 uvlo1 v ref on/off2 v ref on/off3 v ref r5a r5b on/ off5 v ref v ref por uvlo2 cbyp enrs en2 en3 en5 en6 en7 sel on/off2 on/off3 on/off4 on/off5 on/off6 r2 r3 r1 reference voltage high = uvlo active ovlo 13 15 7 14 1 vs 1 in 14 18 30 19 20 21 28 27 26 22 10 2 4 6 31 3 12 23 enable switches v cc 1 v cc 2 5 29 700 k vr1 vr1 v cc 2 5 a uvlo1 uvlo2 v ref out5 voltage selection v cc 2 ovlo cp enable v cc 2 6.5 v v cc _cp v cc 2 vr1 2 a v cc 1 v cc 1 v cc 1 v cc 2 v cc 1
mc33283 3 motorola device data pin function descriptions pin # pin name input output function description 1 gnd i grounds the ic 2 out7 o output 7 regulator output 7 delivers up to 50ma 3 out2 o output 2 regulator output 2 delivers up to 120ma 4 out3 o output 3 regulator output 3 delivers up to 135ma 5 vcc1 i ic supply voltage this pin supplies the 2.85/3v ldos 6 out5 o output 5 regulator output 5 delivers either 2.85v or 4.75v, depending on the level applied on pin 18 7 gnd_cp i charge pump ground this pin requires proper grounding to keep switching noise at the lowest level 8 gnd i grounds the ic 9 gnd i grounds the ic 10 out6 o output 6 regulator output 6 delivers up to 20ma 11 vin i supplies the 5v reg. this pin injects the chargepump output to feed the 5v ldos 12 bub o backup battery buffer output this pin is able to drive an external transistor to active a backup battery 13 d1 o charge pump output d1 delivers a squarewave from the charge pump output 14 vs1in i charge pump v cc supplies the charge pump seperately 15 b1 i boost voltage part of the charge pump wiring diagram 16 gnd i grounds the ic 17 gnd i grounds the ic 18 sel i toggles out 5 the pin activates out 5 either as a 4.75v or a 2.85v 19 en6 i activates out 6 switches on or off out 6 20 en5 i activates out 5 switches on or off out 5 21 en3 i activates out 3 switches on or off out 3 22 uvlo2 o under voltage detection delivers a level low to warn of a low battery condition 23 por o reset signal goes high during the poweron sequence 24 gnd i grounds the ic 25 gnd i grounds the ic 26 cbyp i bypass capacitor bypasses the internal bandgap 27 enrs i reset enable a logic high prevents out 2, 3, 5, 6 and 7 from being switched off by uvlo2 28 en2 i activates out 2 switches on or off out 2 29 vcc2 i ic supply voltage should be connected to pin 5 for normal use 30 en7 i activates out 7 switches on or off out 7 31 out1 o output 1 regulator output 6 delivers up to 50ma 32 gnd i grounds the ic
mc33283 4 motorola device data maximum ratings rating pin # symbol min max unit supply voltage (@ battery pins) 529 v in 0.3 13 v logic input voltage v logic 0.3 v in v logic output current i logic internally limited a peak output current (each regulator) i peak internally limited a thermal resistance junctiontoair r ja 80 typical c/w operating ambient temperature t a 20 +70 c maximum operating junction temperature t j 150 c storage temperature range t stg 30 +85 c lead temperature 230 for 10s c notes: 1. stresses beyond those listed under oabsolute maximum ratingso may cause permanent damage to the device. see orecommended operating conditionso for functional operation of the device. the device may not operate under these conditions but will not be destroyed. 2. all voltages are with respect to gnd. recommended operating conditions characteristics pin # symbol min typ max unit supply voltage (vcc1) 5 vcc1 3.13 6.5 v supply voltage (vcc2) 29 vcc2 0 6.5 v supply voltage (vs1in) 14 vs1in 3.13 6.5 v operating freeair temperature 20 +70 c device marking line 1 (m) line 2 mc33283f line 3 tb28 line 4 date and traceability code
mc33283 5 motorola device data regulator r1 electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage 3.13v < vcc1 < 6.5v 2.70 2.85 3.00 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp @ iout = 11ma 1.0 10 mv load regulation 0ma < iout < 50ma 12 25 mv psrr 1v pkpk, iout = 11ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db en2en7 disabled, vcc2 connected quiescent current (ground current) on, iout = 50ma on, iout = 50 m a 2.0 270 3.0 330 ma m a short circuit current 75 100 ma reverse output current vbackup = 2.85v 0.2 5.0 m a r1 disabled integrated rms noise 10hz 100khz, iout = 11ma 40 m v settling time 3.0v > vout > 2.7v, iout = 50ma 0.1 ms vcc (1&2) 0 to 3.13v (battery connected) the regulator must function normally under the following conditions: load current 0 50 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 6 motorola device data regulator r2 electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage 3.13v < vcc1 < 6.5v 2.70 2.85 3.00 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp @ iout = 75ma 0.5 10 mv load regulation 0ma < iout < 100ma 3.0 12 mv psrr 1v pkpk, iout = 75ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db en2en7 disabled, vcc2 connected quiescent current (ground current) on, iout = 120ma on, iout = 100 m a 4.5 70 6.5 120 ma m a short circuit current 180 250 ma integrated rms noise 10hz 100khz, iout = 75ma 40 m v settling time 3.0v > vout > 2.7v, iout = 120ma 0.1 ms von/off 0 to 2.4v (regulated enabled) the regulator must function normally under the following conditions: load current 0 120 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 7 motorola device data regulator r3 electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage 3.13v < vcc1 < 6.5v 2.70 2.85 3.00 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp @ iout = 82ma 0.3 10 mv load regulation 0ma < iout < 135ma 3.0 13.5 mv psrr 1v pkpk, iout = 11ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db en2en7 disabled, vcc2 connected quiescent current (ground current) on, iout = 50ma on, iout = 10 m a 4.5 70 6.5 120 ma m a short circuit current 203 270 ma integrated rms noise 10hz 100khz, iout = 79ma 40 m v settling time 3.0v > vout > 2.7v, iout = 135ma 0.1 ms von/off 0 to 2.4v (regulator enabled) the regulator must function normally under the following conditions: load current 0 135 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 8 motorola device data regulator r5 (r5a, o5vo) electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage recommended operating conditions sel = high 4.5 4.75 5.0 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp input on vs1in at 6ma output 0.3 20 mv load regulation 0ma < iout < 15ma 3.0 7.5 mv psrr 1v pkpk, iout = 11ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db en2en7 disabled, vcc2 connected quiescent current (ground current) on, iout = 10ma on, iout = 100 m a 1.2 120 2.0 160 ma m a include r5b output divider short circuit current 22.5 30 ma integrated rms noise 10hz 100khz, iout = 6ma 40 m v settling time 5.0v > vout > 4.5v 0.1 ms von/off 0 to 2.4v (regulator enabled) iout = 15ma 0.5 ms charge pump not running when reg. enabled the regulator must function normally under the following conditions: load current sel = high 0 15 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 9 motorola device data regulator r5 (r5b, o3vo) electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage 3.13v < vcc < 6.5v sel = low 2.70 2.85 3.00 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp @ iout = 3ma 0.3 10 mv load regulation 0ma < iout < 10ma 2.0 7.5 mv psrr 1v pkpk, iout = 3ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db quiescent current (ground current) on, iout = 15ma on, iout = 100 m a 1.2 80 2.0 120 ma m a short circuit current 22.5 30 ma integrated rms noise 10hz 100khz, iout = 6ma 25 m v settling time 3.0v > vout > 2.7v 0.1 ms von/off 0 to 2.4v (regulator enabled) the regulator must function normally under the following conditions: load current sel = low 0 10 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 10 motorola device data regulator r6 electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage recommended operating conditions 4.75 4.9 5.25 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp input on vs1in at 6ma output 0.3 4.0 mv load regulation 0ma < iout < 20ma 2.0 6.0 mv psrr 1v pkpk, iout = 11ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db quiescent current (ground current) on, iout = 20ma on, iout = 100 m a 1.2 70 2.0 120 ma m a short circuit current 30 40 ma integrated rms noise 10hz 100khz, iout = 6ma 25 m v settling time 4.75v > vout > 5.25v 0.1 ms von/off 0 to 2.4v (regulator enabled) iout = 20ma 0.5 ms charge pump not running when reg. enabled the regulator must function normally under the following conditions: load current 0 20 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0
mc33283 11 motorola device data regulator r7 electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) characteristics test conditions min typ max unit notes output voltage 3.13v < vcc1 < 6.5v 2.70 2.85 3.00 v limits apply over all normal operating conditions, except load transient response line regulation 1vpp @ iout = 50ma 0.3 10 mv load regulation 0ma < iout < 50ma 12 25 mv psrr 1v pkpk, iout = 37ma 0khz < f < 3khz 3khz < f < 8khz 8khz < f < 10khz 50 40 35 60 50 45 db quiescent current (ground current) on, iout = 50ma on, iout = 100 m a 2.0 70 3.0 120 ma m a short circuit current 75 100 ma integrated rms noise 10hz 100khz, iout = 50ma 25 m v settling time 3.0v > vout > 2.7v, iout = 50ma 0.1 ms von/off 0 to 2.4v (regulator enabled) the regulator must function normally under the following conditions: load current 0 50 ma output capacitor 0.8 1.0 m f ceramic capacitor esr 0.01 0.1 1.0 charge pump characteristics test conditions min typ max unit notes the charge pump must function normally under the following conditions: frequency 270 300 330 khz noise injected by the charge pump on the battery line 0 < f < 220khz and 350 < f < 410khz 20 m vrms zin = 300 m quiescent current on, iout = 25ma on, iout = 200 m a 1.5 1.2 2.5 2.0 ma output current 25 ma source impedance 300 m battery zin input capacitor 1.0 4.7 m f ceramic output capacitor 1.0 4.7 m f ceramic switching capacitor 4.7 m f ceramic; preferred value 1 m f notes: 1. the structure of the charge pump is a doubler.
mc33283 12 motorola device data regulator electrical characteristics electrical characteristics (for typical values t a = 25 c, for min/max values t a = 40 c to +85 c/ max t j = 125 c unless otherwise noted) undervoltage lockout undervoltage lockout 1 (uvlo1) characteristics test conditions min typ max unit notes threshold voltage uvlo2h uvlo1h > 100mv* 2.6 2.72 2.9 v hysteresis 90 mv undervoltage lockout 2 (uvlo2) threshold voltage uvlo2h uvlo1h > 100mv* 2.85 2.95 3.1 v hysteresis 100 mv *note: where the values of uvlo1h and uvlo2h are defined in the section aapplication hintso. over temperature protection threshold 155 c
mc33283 13 motorola device data dedicated control pins characteristics test conditions min typ max unit notes power on reset (por) logic output output current range 0v to 2.2v 4.0 5.0 6.0 m a output low voltage 0.01 0.3 v vcc < uvlo2 threshold output high voltage 2.2 2.8 vr1* v vcc uvlo2 threshold + hysteresis discharge current vcc 2.75v v out1 > vpor > 0.6v 10 20 m a *note: vr1 is the output voltage of regulator 1 backup battery buffer output (bub) logic output output low voltage 0.01 0.7 v vcc < uvlo1 threshold output high voltage 2.0 2.3 vcc v vcc uvlo1 threshold + hysteresis uvlo2 logic output (uvlo2out) output low voltage 0.01 0.3 v vcc < uvlo2 threshold output high voltage 2.3 2.8 vr1* v vcc uvlo2 threshold + hysteresis *note: vr1 is the output voltage of regulator 1 on/off logic inputs (en2, en3, en5, en6, en7) on/off control voltage 1.5 1.2 0.5 v logic '0' = shutdown logic '1' = enabled on/off input current control voltage 2.85v 2.0 0.001 8.0 1.0 a enabled shutdown out5 voltage selection pin (sel) logic input on/off control voltage 2.2 1.2 0.5 v logic '0' = 3v operation logic '1' = 5v operation on/off input current control voltage 2.85v 2.0 0.001 8.0 1.0 a 5v operation 3v operation enable reset from uvlo2 signal (enrs) logic input on/off control voltage 2.2 0.5 0.25 v logic '0' = uvlo2 disables regulators logic '1' = uvlo2 no effect on regulators on/off input current control voltage 2.85v 3.0 0.001 8.0 1.0 a uvlo2 no effect uvlo2 disables regs. total quiescent current quiescent current vcc2 disconnected 1.0 20 m a vcc = 4.8v max. input current for vcc2 vcc2 = 4.8v 240 300 m a
mc33283 14 motorola device data state tables regulators regulators regulator status mode regulator 1 enabled vcc > uvlo1 threshold + hysteresis disabled vcc < uvlo1 threshold regulator 2 enabled on/off2 = logic o1o disabled on/off2 = logic o0o regulator 3 enabled on/off3 = logic o1o disabled on/off3 = logic o0o regulator 6 enabled on/off6 = logic o1o disabled on/off6 = logic o0o regulator 7 enabled on/off7 = logic o1o disabled on/off7 = logic o0o regulator 5 selection between 3v/5v selection between 3v/5v 3v sel = logic low 5v sel = logic high enabling regulator 5 disabled on/off5 = logic o0o enabled on/off5 = logic o1o charge pump control signal charge pump status on/off6 on/off5 sel 0 0 x disabled 0 x 0 disabled x 1 1 enabled 1 x x enabled
mc33283 15 motorola device data typical characterization curves t a = 70 c figure 1. normalized output voltage change versus temperature (2.85 v regulators) figure 2. normalized output voltage change versus temperature (5 v regulators) v 20 40 0 40 0.5 0.2 t amb ( c) 20 0.3 0.1 0.4 0.5 0 0.1 0.4 60 80 100 v 10 020 50 0 150 i load (ma) 30 40 100 200 50 250 300 60 70 80 figure 3. dropout versus load current (regulators r1, r7) figure 4. dropout versus load current (regulator r2) figure 5. dropout versus load current (regulator r3) figure 6. dropout versus load current (regulator r5b) 0.2 0.3 change (%) out v cc = 4 v i out = typical v 20 40 0 40 0.5 0.2 t amb ( c) 20 0.3 0.1 0.4 0.5 0 0.1 0.4 60 80 100 0.2 0.3 change (%) out v in = 5.5 v i out = typical (mv) drop v cc = 2.9 v t a = 70 c t a = 25 c v 050 0 150 i load (ma) 100 100 200 50 250 400 150 200 (mv) drop v cc = 2.9 v t a = 25 c 300 350 v 050 0 150 i load (ma) 100 100 200 50 250 300 150 200 (mv) drop v cc = 2.9 v t a = 70 c t a = 25 c v 05 0 150 i load (ma) 10 100 200 50 250 15 25 (mv) drop v cc = 2.9 v t a = 70 c t a = 25 c 20
mc33283 16 motorola device data typical characterization curves figure 7. dropout versus load current (regulators r5a, r6) figure 8. p srr versus frequency (all regulators) v 5 01015 0 i load (ma) 50 100 250 150 20 25 30 noise density (nv/khz) 0.1 1 0 300 frequency (khz) 10 200 400 100 500 600 100 1000 figure 9. output noise density versus frequency (regulators r1, r2, r3, r5a, b) figure 10. output noise density versus frequency (regulators r6, r7) figure 11. quiescent current versus supply voltage figure 12. normalized charge pump oscillator frequency change versus temperature 200 (mv) drop p 0.1 1 0 frequency (khz) 10 20 80 30 40 70 10 50 60 (db) srr v cc = 4 v + 1 v pkpk i out = typical t a = 25 c i 34 100 v cc (v) 5 200 250 150 350 300 67 ( a) q f 40 20 5 1 t amb ( c) 0 2 0 4 5 20 100 change (%) osc v s 1 in = 4 v 40 t a = 70 c t a = 25 c v cc = 3.6 v v in = 5.5 v i out = typical t a = 25 c noise density (nv/khz) 0.1 1 0 300 frequency (khz) 10 200 400 100 500 600 100 1000 v cc = 3.6 v v in = 5.5 v i out = typical t a = 25 c 3.5 4.5 5.5 6.5 r2 to r7 disabled i out = r1 = 0 t a = 25 c 60 80 3 3 2 4 1
mc33283 17 motorola device data typical oscilloscope shots figure 13. startup response: regulator 1 figure 14. startup response: regulator 6 figure 15. current step response: regulator 1 figure 16. enable response: regulator 6 product description and application hints introduction the mc33283 represents a major lead toward largescale analog integration. more than a simple multioutput low dropout regulator (ldo), it offers a comprehensive solution to power any portable device such as gsm phones etc. the system includes four 2.85v regulators featuring different output current capabilities. these regulators are marked r1, r2, r3 and r7 on the simplified block diagram. this configuration ensures an excellent noise isolation between the ldos and thus between the downstream electronics. thanks to the implementation of the charge pump, regulator r6 delivers 5v up to 20ma while the battery is at a lower value. finally, for maximum flexibility, regulator r5 is a multioutput device in one part: with the help of an external pin, the designer can toggle its value between 4.75v or 2.85v. this regulator is split in two distinct references: r5a and r5b. individual selection lines are available to enable/disable each regulator. the ic also delivers logical signals to warn the operating system of any abnormal conditions (low battery etc.) regulators r1, r2, r3, r6, and r7 r1, r2 and r3 are set to a 2.85v nominal value (mc33283ftb28). the ldos exhibit excellent noise characteristics with a typical 40 m vrms (10hz100khz) @ iout = nominal. in a typical gsm application, r1 can be used to charge a backup battery which safely feeds the operating system when the battery is low (e.g. to keep the clock or any configuration data). the commutation between the supplies (the normal battery or the backup one) is ensured by the bub signal on pin 12. this level goes low when a weak battery is sensed by uvlo1 and accordingly drives an external pchannel gate. its purpose is to route the safe battery to the system supply.
mc33283 18 motorola device data the regulators accept decoupling capacitors as low as 1 m f with equivalent series resistor (esr) varying between 10m and 3 without jeopardizing the regulator's stability. r1 is only disabled by the uvlo1 circuit when it senses a low battery condition. on the other hand, r2, r3, r6 and r7 can be driven by their respective validation pins. regulator r5 r5 is multioutput regulator that can be implemented to supply a sim connector and adapt its operating voltage to either 2.85v (noted r5b) or 4.75v (noted r5a). the selection of the voltage is simply done via the dedicated sel pin (18) while r5's logical control is ensured through pin 20 (en5). charge pump the charge pump is a standalone device. this means that its output can be used to supply another circuitry as long as its maximum current capability is respected (25ma). operating at a typical 300khz, it has been designed to lower the injection of highfrequency ripple noise into the battery line. two seperate standard schottky diodes like the bat54lt1 can be used to perform the rectification function. if space is of concern, a dual cathodetoanode bat54slt1 will also perfectly suit. the charge pump accepts up to 4.7 m f filtering capacitor values. these values impact the output ripple and the output transient capability of the charge pump. as we previously said, the charge pump can supply regulators r5a and r6. in that case, the final charge pump stage (see below drawing) enters the vin pin (14). the 14 pin can also be supplied by an external power supply as long as it fulfills r5a and r6 dropout conditions. bat54lt1 14 1 m f vs1in 1 m f 1 m f bat54lt1 13 7 15 14 gnd_cp d1 b1 vin wiring the charge pump: the charge pump is equipped with an overvoltage (ovlo) comparator. if vs1in is greater than 6.5v, the charge pump function is disabled. a doubled output voltage could damage r5a, r6 regulators, while 6.5v is enough to supply r5a, r6 directly through the charge pump diodes. the common vref voltage is used, requiring vcc2 to be supplied. to minimize the common impedance noise, the charge pump implements its own ground pin (15) whose return length shall be kept as short as possible. internal voltage reference this reference implements a classical bandgap structure and requires an external bypass capacitor to reduce its noise. a typical ceramic 10nf capacitor will fulfill this function. please note that this decoupling pin shall not be externally loaded. under voltage lockouts (uvlos) the uvlo1 block monitors the voltage present upon the vcc2 pin and disables r1 regulator if the battery weakens below 2.72v typical. in that case, r1 is stopped and a low level appears on the bub pin (12). uvlo2 also monitors the battery level but does not affect r1. uvlo2 directly drives the r2 through r7 on/off authorizations. the uvlo2 signal goes through an internal and gate whose other input receives the enrs level (pin 27). if enrs is low, uvlo2 pilots r2r7 on/off authorizations. if enrs is high, uvlo2 level does no longer affect r2r7 on/off authorizations. uvlo2h uvlo2l uvlo1h uvlo1 uvlo2 uvlo1l note: h represents the maximum value while l the minimum poweron reset (por) the poweron reset is asserted (low) immediately when the battery voltage drops below the uvlo2 threshold. when the battery voltage rises above this threshold, a typical 5 m a current source charges an external capacitor whose value is selected so as to accommodate with any chosen delay. overall chip enable if vcc2 is disconnected, the whole chip is disabled, including the voltage reference, the regulators, the charge pump, the under voltage lock out circuits, the poweron reset and the backup battery switch buffer. maximum power dissipation the maximum power dissipation is given by the following formula: p max t jmax t a r ja applying this statement with the mc33283 maximum ratings gives a total maximum power of 1w @ t a = 70 c. this 1w corresponds to the sum of all regulators powers. individual regulator power is obtained by multiplying its operating dropout by its operating currents, at which you add the input voltage multiplied by the quiescent current: preg (vin reg vout reg) iout reg vin reg i quiescent @iout total power is then: p r1 + p r2 + p r3 + p r5 + p r6 + p r7 and shall be kept lower than 1w if operating at an ambient temperature of 70 c.
mc33283 19 motorola device data ftb suffix plastic package case 873b02 (tqfp32) issue a outline dimensions 24 17 25 32 1 8 16 9 s base metal z 0.150 ac a b tu 0.150 ac v notes: 1. dimensions and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeter. 3. datum plane ab is located at bottom of lead and is coincident with the lead where the lead exits the plastic body at the bottom of the parting line. 4. datums t, u and z to be determined at datum plane ab . 5. dimensions s and v to be determined at seating plane ac. 6. dimensions a and b do not include mold protrusions. allowable protrusion is 0.25 per side. dimensions a and b do include mold mismatch and are determined at datum plane ab. 7. dimension d does not include dambar protrusion. dambar protrusion shall not cause the d dimension to exceed 0.533. 8. minimum solder plate thickness shall be 0.0076. 9. exact shape of each corner may vary from depiction. 9 ac ab g 0.100 ac seating plane y y y ad detail y ae ae p t, u, z c e h w gauge plane 0.250 r k x m 8x q tu 0.20 ac d z f n j section aeae detail ad tu 0.150 ac z 0.150 ac u t z dim min max millimeters a 6.950 7.050 b 6.950 7.050 c 1.000 1.200 d 0.300 0.450 e 0.950 1.050 f 0.300 0.400 g 0.800 bsc h 0.050 0.150 j 0.090 0.200 k 0.500 0.700 n p 0.400 bsc q 0 7 r 0.150 0.250 s 8.950 9.050 v 8.950 9.050 w 0.200 ref x 1.000 ref m 0.090 0.178 12 ref m
mc33283 20 motorola device data motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. mfax is a trademark of motorola, inc. how to reach us: usa / europe / locations not listed : motorola literature distribution; japan : motorola japan ltd.; spd, strategic planning office, 141, p.o. box 5405, denver, colorado 80217. 13036752140 or 18004412447 4321 nishigotanda, shinagawaku, tokyo, japan. 81354878488 customer focus center: 18005216274 mfax ? : rmfax0@email.sps.mot.com touchtone 1 6022446609 asia / pacific : motorola semiconductors h.k. ltd.; silicon harbour centre, motorola fax back system us & canada only 18007741848 2, dai king street, tai po industrial estate, tai po, n.t., hong kong. http://sps.motorola.com/mfax/ 85226629298 home page : http://motorola.com/sps/ mc33283/d ?

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