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1 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet general description the az70xx series ics are under voltage detectors with a built in voltage threshold and low power con- sumption. the az70xx are specifically designed to accurately monitor power supplies. the az70xx use a precision on-chip voltage refer- ence and a comparator to measure the input operating voltage. these ics can accurately reset the system after detecting voltage at the time of switching power on and instantaneous power off in various cpu systems and other logic systems. the detect voltage thresholds are 2.3v/2.5v/2.7v/2.9v/3.1v/3.3v/4.2v/4.5vfor az7023/25/27/29/31/33/42/45 respectively. built in hysteresis helps to prevent er ratic operation in the pres- ence of noise. the az70xx series are availa ble in 2 standard pack- ages: to-92 (bulk or ammo packing) and sot-89. features low current consumption: i ccl =300 a typical i cch =30 a typical low minimum operatin g voltage for output resetting: 0.8v typical built in hysteresis voltage: 50mv typical open collector output extended temperature range: -40 to 85 o c applications low battery voltage detector power fail indicator processor reset generator battery backup control home electric appliances sot-89 figure 1. package types of az70xx to-92(bulk packing) to-92(ammo packing)
2 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet figure 2. pin configuration of az70xx (top view) z package r package (sot-89) figure 3. functional block diagram of az70xx functional block diagram v cc gnd out out gnd v cc + - v cc out gnd pin configuration z package out gnd v cc (to-92(bulk packing)) (to-92(ammo packing)) 1 2 3 1 2 3 123
3 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet ordering information package temperature range detect voltage part number marking id packing type lead free green lead free green to-92 -40 to 85 o c 2.3v az7023z-e1 az7023z-g1 az7023z-e1 az7023z-g1 bulk az7023ztr-e1 az7023ztr-g1 az7023z-e1 az7023z-g1 ammo 2.5v az7025z-e1 az7025z-g1 az7025z-e1 az7025z-g1 bulk az7025ztr-e1 az7025ztr-g1 az7025z-e1 az7025z-g1 ammo 2.7v az7027z-e1 az7027z-g1 az7027z-e1 az7027z-g1 bulk az7027ztr-e1 az7027ztr-g1 az7027z-e1 az7027z-g1 ammo 2.9v az7029z-e1 az7029z-g1 az7029z-e1 az7029z-g1 bulk az7029ztr-e1 AZ7029ZTR-G1 az7029z-e1 az7029z-g1 ammo 3.1v az7031z-e1 az7031z-g1 az7031z-e1 az7031z-g1 bulk az7031ztr-e1 az7031ztr-g1 az7031z-e1 az7031z-g1 ammo 3.3v az7033z-e1 az7033z-g1 az7033z-e1 az7033z-g1 bulk az7033ztr-e1 az7033ztr-g1 az7033z-e1 az7033z-g1 ammo 4.2v az7042z-e1 az7042z-g1 az7042z-e1 az7042z-g1 bulk az7042ztr-e1 az7042ztr-g1 az7042z-e1 az7042z-g1 ammo 4.5v az7045z-e1 az7045z-g1 az7045z-e1 az7045z-g1 bulk az7045ztr-e1 az7045ztr-g1 az7045z-e1 az7045z-g1 ammo sot-89 -40 to 85 o c 2.3v az7023rtr-e1 az7023rtr-g1 e723 g70a tape & reel 2.5v az7025rtr-e1 az7025rtr-g1 e725 g70g tape & reel 2.7v az7027rtr-e1 az7027rtr-g1 e727 g70b tape & reel 2.9v az7029rtr-e1 az7029rtr-g1 e729 g70c tape & reel 3.1v az7031rtr-e1 az7031rtr-g1 e731 g70h tape & reel 3.3v az7033rtr-e1 az7033rtr-g1 e733 g70d tape & reel 4.2v az7042rtr-e1 az7042rtr-g1 e742 g70e tape & reel 4.5v az7045rtr-e1 az7045rtr-g1 e745 g70f tape & reel circuit type package z: to-92 e1: lead free az70 - tr: tape and reel or ammo blank: bulk r: sot-89 detect voltage 23: 2.3v 27: 2.7v 29: 2.9v 33: 3.3v 42: 4.2v 45: 4.5v 25: 2.5v 31: 3.1v g1: green bcd semiconductor's pb-free prod ucts, as designated wi th "e1" suffix in the part numbe r, are rohs compliant. products with "g1" suffix are available in green packages.
4 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet note 1: stresses greater than those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under"recommended operating conditi ons" is not implied. exposure to "absolute maxi- mum ratings" for extended periods may affect device reliability. recommended operating conditions parameter symbol value unit supply voltage v cc -0.3 to 20 v power dissipation (package limitations, t a =25 o c) p d to-92 package: 400 mw sot-89 package: 500 operating junction temperature t j 150 o c storage temperature range t stg -65 to 150 o c parameter symbol min max unit supply voltage v cc 18 v operating temperature range t a -40 85 o c absolute maximum ratings (note 1)
5 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet parameter symbol conditions min typ max unit detect vo l t a g e v det r l =200 ? (note 2) v ol ? 0.4v az7023r/z 2.15 2.3 2.45 v az7025r/z 2.35 2.5 2.65 az7027r/z 2.55 2.7 2.85 az7029r/z 2.75 2.9 3.05 az7031r/z 2.95 3.1 3.25 az7033r/z 3.15 3.3 3.45 az7042r/z 4.05 4.2 4.35 az7045r/z 4.35 4.5 4.65 low-level output voltage v ol v cc =v det (min)-0.05v r l =200 ? (note 2) 0.4 v output leakage current i oh v cc =15v 0.1 a hysteresis voltage v hys r l =200 ? (note 2) 30 50 100 mv detect voltage temperature coefficient ? v det /(v det ? ? t) r l =200 ? (note 2) 0.01 % / o c circuit current at on time i ccl v cc =v det (min)-0.05v 300 500 a circuit current at off time i cch v cc =5.25v 30 50 a minimum operating voltage v opr r l =200 ? (note 2) v ol ? 0.4v 0.8 v o l p transmission delay time tphl v cc changed from 5.25v to v det (min)-0.05v, r l =1.0k ? , c l =100p (note 3) 10 s o h p transmission delay time tplh v cc changed from v det (min)- 0.05v to 5.25v, r l =1.0k ? , c l =100p (note 3) 15 s output current at on time i ol v cc =v det (min)-0.05v t a =25 o c (note 4) 20 ma i ol ? v cc =v det (min)-0.05v t a =-40 to 85 o c (note 4) 16 thermal resistance (junction to case) jc to-92 72 o c/w sot-89 74 electrical characteristics t a =25 o c, unless otherwise specified. note 2: see test circuit 1 and figure 12. note 3: see test circuit 2 and figure 12. note 4: see test circuit 3. ad justing the regulative power source until the reading value of volta ge meter v is 0.4v, the readi ng value of current meter a is define d as "output current at on time".
6 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet figure 4. test circuit 1 figure 5. test circuit 2 electrical characteristics (continued) figure 5. test circuit 2 figure 6. test circuit 3 10 f + a v v det (min)-0.05v 1 3 2 v cc az7029 out gnd r l 10 f + a2 v2 a1 v1 1 3 2 v cc az7029 out gnd c l +5v r l 10 f + input pulse 1 3 2 v cc az7029 out gnd
7 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet figure 7. detect voltage vs. temperature figure 8. minimum operating voltage vs. temperature figure 9. output current at on ti me vs. temperature figure 10. low-le vel output voltage vs. temperature -40-20 0 20406080 400 500 600 700 800 900 1000 1100 1200 az7029 minimum operating voltage (mv) temperature ( o c) -40-20 0 20406080 10 20 30 40 50 60 70 output current at on time (ma) temperature ( o c) az7029 -40-20 0 20406080 0 25 50 75 100 az7029 low-level output voltage (mv) temperature ( o c) -40-20 0 20406080 2.75 2.80 2.85 2.90 2.95 v det- (v cc falling) v det+ (v cc rising) detect voltage (v) temperature ( o c) az7029 typical performance characteristics
8 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet figure 11. output voltage dynamic response when v cc increases and decreases time (s) figure 12. az70xx timing waveform (note 5) operating diagram typical performance ch aracteristics (continued) note 5: detect voltage: v det- release voltage: v det+ hysteresis voltage (v hys ): v det+ -v det- minimum operating voltage: v opr tplh tphl v cc v det- v out v det+ tphl tplh v hys v opr gnd
9 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet figure 13. low voltage indicator figure 14. cpu resetting circuit 1 3 2 v cc az70xx out gnd led v cc r1 220 v cc +5v r1 3.3k 1 3 2 v cc az70xx out gnd cpu v cc gnd reset c1 1 f + operating diagram (continued) typical applications figure 12 is a typical timing waveform for az70xx. in normal steady-state operation when v cc >v det- , the output will be in a logic high state and v out is dependent upon the voltage that the pull-up resistor connected to. here is some explanations for az70xx's operation. 1. when the input voltage v cc falls below v det- , the output will pull down to logic low after a delay time of tphl. in general, at rated output current and v cc , v out can be pulled down to a voltage as low as within 0.4v from gnd. (see the electrical characteristics section). the voltage level v det- means the detect voltage. 2. the output, v out , will stay valid until v cc falls below the minimum operating voltage, v opr (0.8v typical). below minimum operating voltage, the out- put is undefined. 3. during power-up, v out will remain undefined until v cc rises above v opr , at which time the output will become valid. v out will be in its active low state while v opr < v cc < v det+ (v det+ =v det- +v hys ). v det+ is the release voltage. v hys means the hystere- sis voltage and is the diff erence voltage between the v det+ and v det- . 4. when v cc rises above v det+ , the output will be in its inactive state. after a delay time of tplh, v out will be in its logic high state .
10 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet mechanical dimensions to-92(bulk packing) 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)
11 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet mechanical dimens ions (continued) to-92(ammo packing) unit: mm(inch) 4.300(0.169) 4.700(0.185) 13.000(0.512) 14.000(0.551) 2.540(0.100) typ 4.500(0.177) 5.500(0.217) 1.270(0.050) typ 0.380(0.015) 0.550(0.022) 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) max 1.600(0.063) 1.100(0.043) 1.400(0.055) 3.300(0.130) 3.700(0.146) !
12 nov. 2008 rev. 1. 9 bcd semiconductor manufacturing limited voltage detector az70xx data sheet 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 ) 0.520(0.020) 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)
important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing co., ltd. 800 yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd., shenzhen office unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corp. 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax: +1-510-324-2788 - headquarters bcd semiconductor manufacturing limited no. 1600, zi xing road, shanghai zizhu sc ience-based industrial park, 200241, china tel: +86-21-24162266, fax: +86-21-24162277 bcd semiconductor manufacturing limited important notice bcd semiconductor manufacturing limited reserves the right to make changes without further not ice to any products or specifi- cations herein. bcd semiconductor manufacturing limited does not as sume any responsibility for us e of any its products for any particular purpose, nor does bcd semiconductor manufacturi ng limited assume any liability aris ing out of the application or use of any its products or circui ts. bcd semiconductor manufacturing limited does not convey any license under its patent rights or other rights nor the rights of others. - wafer fab shanghai sim-bcd semiconductor manufacturing limited 800, yi shan road, shanghai 200233, china tel: +86-21-6485 1491, fax: +86-21-5450 0008 bcd semiconductor manufacturing limited main site regional sales office shenzhen office shanghai sim-bcd semiconductor manuf acturing co., ltd. shenzhen office advanced analog circuits (shanghai) corporation shenzhen office room e, 5f, noble center, no.1006, 3rd fuzhong road, futian district, shenzhen 518026, china tel: +86-755-8826 7951 fax: +86-755-8826 7865 taiwan office bcd semiconductor (taiwan) company limited 4f, 298-1, rui guang road, nei-hu district, taipei, taiwan tel: +886-2-2656 2808 fax: +886-2-2656 2806 usa office bcd semiconductor corporation 30920 huntwood ave. hayward, ca 94544, u.s.a tel : +1-510-324-2988 fax: +1-510-324-2788 - ic design group advanced analog circuits (shanghai) corporation 8f, zone b, 900, yi shan road, shanghai 200233, china tel: +86-21-6495 9539, fax: +86-21-6485 9673 bcd semiconductor manufacturing limited http://www.bcdsemi.com bcd semiconductor manufacturing limited

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