View AZ432BN-TRE1_1942316.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 1 general description the az432 series ics are low voltage three-terminal adjustable regulators with guaranteed thermal stability over a full operation range. these ics feature sharp turn-on characteristics, lo w temperature coefficient and low output impedance, which make them ideal substitutes for zener diodes in applications such as switching power supply, charger, motherboard and other adjustable regulators. the output voltage can be set to any value between 1.25v and 18v with two external resistors. the az432 precision reference is offered in two band- gap tolerance: 0.5% and 1%. these ics are available in 4 packages: to-92, sot- 23-3, sot-23-5, sot-89. features wide programmable precise output voltage from 1.25v to 18v high stability under capacitive load low temperature deviation: 3mv typical low equivalent full-range temperature coeffi- cient: 20ppm/ o c typical low dynamic output resistance: 0.05 ? typical high sink current capacity from 55 a to 100 ma low output noise wide operating range of -40 to 125 o c applications graphic card pc motherboard voltage adapter switching power supply charger figure 1. package types of az432 sot-23-5 sot-23-3 to-92 sot-89
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 2 figure 2. pin configuration of az432 (top view) z package (to-92) (sot-23-3) n package r package (sot-89) figure 3. functional block diagram of az432 functional block diagram k package (sot-23-5) anode nc cathode cathode anode ref ref anode cathode ref 3 1 2 1 23 3 2 1 4 5 nc 4 ref v ref cathode anode + - cathode anode ref 1 2 3 pin configuration
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 3 ordering information circuit type bandage tolerance b: 1% a: 0.5% e1: lead free blank: tin lead az432 - package tempera- ture range voltage tolerance part number marking id packing type tin lead lead free tin lead lead free to-92 -40 to 125 o c 0.50% az432az az432az-e1 az432az az432az-e1 bulk 0.50% az432aztr az432aztr-e1 az432az az432az-e1 ammo 1% az432bz az432bz-e1 az432bz az432bz-e1 bulk 1% az432bztr az432bztr-e1 az432bz az432bz-e1 ammo sot-23-3 -40 to 125 o c 0.50% az432antr az432antr-e1 n48 ea8 tape & reel 1% az432bntr az432bntr-e1 n49 ea9 tape & reel sot-23-5 -40 to 125 o c 0.50% az432aktr az432aktr-e1 k43 e7a tape & reel 1% az432bktr az432bktr-e1 k44 e8a tape & reel sot-89 -40 to 125 o c 0.50% az432artr az432artr-e1 r42a e42a tape & reel 1% az432brtr az432brtr-e1 r42b e42b tape & reel package z: to-92 tr: tape and reel or ammo blank: tube or bulk bcd semiconductor's pb-free products, as designated with "e1" suffix in th e part number, are rohs compliant. n: sot-23-3 k: sot-23-5 r: sot-89
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 4 parameter symbol value unit cathode voltage v ka 20 v cathode current range (continuous) i ka -100 to 100 ma reference input current range i ref 10 ma power dissipation p d z,r package 770 mw n,k package 370 storage temperature range t stg -65 to 150 o c package thermal impedance q ja to-92 130 o c/w sot-23-3 330 sot-23-5 250 sot-89 100 note 1: stresses greater than those listed under "absol ute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operatio n of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to "absolute maximum ratings" for extended periods ma y affect device reliability. parameter symbol min max unit cathode voltage v ka v ref 18 v cathode current i ka 0.1 100 ma operating ambient temperature range -40 125 o c recommended operation ratings absolute maximum ratings (note 1)
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 5 (typical and limits apply for t j =25 o c unless otherwise noted.) parameter test circuit symbol conditions min typ max unit reference voltage 0.5% 4 v ref v ka =v ref, i ka =10ma 1.244 1.250 1.256 v 1% 1.238 1.250 1.262 deviation of reference volt- age over-temperature 4 ? v ref v ka =v ref i ka =10ma 0 to 70 o c 2 10 mv -40 to 85 o c 310 ratio of change in v ref to the change in cathode voltage 5 ? v ref ? v ka i ka =10ma, ? v ka : v ref to 16v -0.5 -1.5 mv/v reference input current 5 i ref i ka =10ma, r1=10k ? , r2= 0.15 0.4 a deviation of reference cur- rent over full temperature range 5 ? i ref i ka =10ma, r1=10k ? , r2= t a =-40 to 85 o c 0.1 0.4 a minimum cathode current for regulation 4 i ka (min) v ka =v ref 55 80 a off-state cathode current 6 i ka (off) v ref =0, v ka =18v 0.04 0.10 a v ka =6v, v ref =0 0.01 0.05 dynamic impedance 4 z ka v ka =v ref , i ka =1 to 100ma f 1.0khz 0.05 0.15 ? electrical characteristics
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 6 figure 4. test circuit 4 for v ka =v ref figure 5. test circuit 5 for v ka >v ref figure 6. test circuit 6 for i off i off v in v ka electrical characteristics (continued) v in v ka r1 i ka v ref v in v ka i ka r1 r2 v ref v ka =v ref (1+r1/r2)+ i ref r1 i ref r3
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 7 figure 7. reference voltage vs. ambient temperature figure 8. reference current vs. ambient temperature figure 9. cathode current vs. cathode voltage figure 10. current vs. cathode voltage -50 -25 0 25 50 75 100 0.12 0.13 0.14 0.15 0.16 0.17 0.18 i ka =10ma r1=10k ? ambient temperature ( o c) reference current ( a) r2 = -1 0 1 -150 -100 -50 0 50 100 150 cathode current (ma) cathode voltage (v) v ka =v ref t a =25 o c -1.0 -0.5 0.0 0.5 1.0 1.5 -300 -200 -100 0 100 200 300 400 cathode current ( a) cathode voltage (v) v ka =v ref t a =25 o c -50 -25 0 25 50 75 100 125 150 1.247 1.248 1.249 1.250 1.251 1.252 1.253 ambient temperature ( o c) reference voltage (v) v ka =v ref i ka =10ma typical performance characteristics
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 8 100 1k 10k 100k 0 10 20 30 40 50 60 500k voltage gain (db) small signal frequency (hz) i ka =10ma t a =25 o c 10 f 4.3k 6.8k i ka output 360 gnd figure 12. dynamic impedance vs. frequency gnd output 50 ? 100 ? i ka figure 11. small signal voltage gain vs. frequency 1k 10k 100k 1m 0.01 0.1 1 10 impedance ( ? ) frequency (hz) typical performance ch aracteristics (continued)
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 9 figure 13. pulse response of input and output voltage pulse generator f=100khz r2 50 ? output gnd r1 1.8k ? -40 0 40 80 120 -0.5 -0.4 -0.3 i ka =10ma ? v ka =v ref to 16v. ratio of ? v ref to ? v ka (mv/v) ambient temperature ( o c) figure 14. ratio of delta reference voltage to the ratio of delta cathode voltage vs. ambient temperature typical performance ch aracteristics (continued) -10123456 0 1 2 3 input input and output voltage (v) time ( s) output
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 10 figure 15: shunt regulator figure 16: high current shunt regulator figure17: current source or current limit v o =(1+r1/r2) v ref v o =(1+r2/r3) v ref i out = v ref /r2 + i ka v in v out r1 r2 v ref az432 r3 i out v in az432 r2 r1 v in v out r4 r1 r2 v ref r3 az432 v in v out r4 r1 r2 v ref r3 az432 typical application s
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 11 figure 19: pwm converter with reference figure18: precision 2.5v/1a regulator az1117 v in 2.5v/1a 8.2k az432 r1 r2 r3 250 250 pwm controller c1 r1 r2 680 u2 3 4 ps521 c2 2 r3 r4 r5 v out az432 q1 comp vfb typical applicat ion (continued)
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 12 mechanical dimensions unit: mm (inch) 2.440(0.096) 2.640(0.104) 0.380(0.015) 0.550(0.022) 1.600(0.063) max 14.100(0.555) 14.500(0.571) 1.270(0.050) typ 3.300(0.130) 3.700(0.146) 4.300(0.169) 4.700(0.185) 1.100(0.043) 1.400(0.055) 4.400(0.173) 4.700(0.185) 3.430(0.135) min 0.360(0.014) 0.510(0.020) 0.000(0.000) 0.380(0.015) to-92
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 13 mechanical dimens ions (continued) sot-23-3 unit: mm(inch) 2.300(0.091) 2.500(0.098) 1.200(0.047) 1.400(0.055) 0.920(0.036) 0.980(0.039) 0.390(0.015) 0.450(0.018) 1.900(0.075)ref 2.800(0.110) 3.000(0.118) 2.0 3.0 0.500(0.020) 0.700(0.028) 1.050(0.041)ref 0.020(0.001) 0.100(0.004) 0.900(0.035) 1.100(0.043) 4 r0.100(0.004) 7.0 7.0 0.550(0.022)ref 0.200(0.008)min 0.100(0.004) gauge plane 0.080(0.003) 0.150(0.006) r0.100(0.004) 0.0 ~ 10.0
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 14 sot-23-5 unit: mm(inch) 2.800(0.110) 2 . 7 0 0 ( 0 . 1 0 6 ) 4 4 1 . 5 0 0 ( 0 . 0 5 9 ) r0.100(0.004) 0 . 0 1 0 ( 0 . 0 0 0 4 ) 0 . 9 5 0 ( 0 . 0 3 7 ) 0.300(0.012) 0.925(0.036) 0 . 6 5 0 ( 0 . 0 2 6 ) 0.080(0.003) r0.100(0.004) 0.200(0.008) 0 . 3 0 0 ( 0 . 0 1 2 ) 15 5 3.000(0.118) 1 . 7 0 0 ( 0 . 0 6 7 ) 2 . 9 0 0 ( 0 . 1 1 4 ) 0.975(0.038) 0.500(0.020) 15 5 1 . 4 5 0 ( 0 . 0 5 7 ) 0 . 1 5 0 ( 0 . 0 0 6 ) 1 . 0 5 0 ( 0 . 0 4 1 ) r0.200(0.008) 0.300(0.012) 0.220(0.009) 0 . 6 0 0 ( 0 . 0 2 4 ) mechanical dimens ions (continued)
low voltage (1.25v) adjustable precision shunt regulator az432 data sheet apr. 2005 rev. 1. 2 bcd semiconductor manufacturing limited 15 mechanical dimens ions (continued) sot-89 unit: mm(inch) 1.400(0.055)* 1.630(0.064) 4.400(0.173) 0.360(0.014) 0.440(0.017) 3.000(0.118) 0 . 9 0 0 ( 0 . 0 3 5 ) 2 . 3 0 0 ( 0 . 0 9 1 ) 3 . 9 5 0 ( 0 . 1 5 6 ) 1.400(0.055) 0.360(0.014) 1 0 3 1 0 r0.200(0.008) r0.150(0.006) 0 . 0 0 0 ( 0 . 0 0 0 ) 3 1.600(0.063) 0.440(0.017) 0.560(0.022) 2 . 6 0 0 ( 0 . 1 0 2 ) 0.480(0.019) 4.600(0.181) 1.830(0.072) 1 . 2 0 0 ( 0 . 0 4 7 ) 4 . 2 5 0 ( 0 . 1 6 7 ) 0 . 0 7 6 ( 0 . 0 0 3 ) 0.360(0.014) 0.480(0.019)
8f, b zone, 900 yi shan road, shanghai 200233, prc tel: +86-21-6495 9539, fax: +86-21- 6485 9673 bcd semiconductor (tai wan) company limited room 2210, 22nd fl, 333, keelung road, sec. 1, taipei (110), taiwan tel: +886-2-2758 6828, fax: +886-2-2758 689 2 important notice bcd semiconductor manufacturing limited reserves the right to make changes without further notice to any pro- ducts or specifications herein. bcd se miconductor manufacturing limited does not assume any responsibility for use of any its products for any particular purpose, nor does bcd semiconductor manufacturing limited assume any liability arising out of the application or use of any its products or circuits. bcd semiconductor manufacturing limi- ted does not convey any license under its patent rights or other rights nor the rights of others. http://www.bcdsemi.com bcd semiconductor corporation 3170 de la cruz blvd, suite # 105 santa clara, ca 95054-2411, u.s.a tel: +1-408-988 6388, fax: +1-408-988 63 86 shanghai sim-bcd semiconduc tor manufacturing co., ltd. 800 yi shan road, shanghai 200233, prc tel: +86-21-6485-1491, fax : +86-21-5450-0008 advanced analog circuits (shanghai) corporation

▲Up To Search▲

Price & Availability of AZ432BN-TRE1

	To Download AZ432BN-TRE1 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .