data sheet 3-pin microprocessor reset circuits az809/az810 1 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited general description the az809/810 microprocessor supervisory circuits can be used to monitor the power supplies in micropro- cessor and digital systems. they provide a reset to the microprocessor in power-up, power-down and brown- out conditions. the function of the az809/810 is to monitor the v cc supply voltage, and assert a reset sig- nal whenever this voltage declines below the factory- programmed reset threshold. the reset signal remains asserted for 240ms after v cc rises above the threshold. the az809 has an active-low reset output, while the az810 has an active-high reset output. seven standard reset voltage options are available, suitable for monitoring 3.0v, 3.3v and 5.0v supply voltages. with a typical supply current of only 8 a when v cc is 3.3v, the az809/810 are ideal for use in portable equipment. these ics are availabl e in sot-23 package. features precise monitoring of 3.0v, 3.3v and 5.0v sup- ply voltages improved maxim max809/max810 replace- ment 140ms min. reset pulse width active-low reset output (az809) active-high reset output (az810) no external components specified over full te mperature range: -40 to 105 o c applications embedded controllers battery operated systems intelligent instruments wireless communication systems pdas and handheld equipment sot-23 figure 1. package type of az809/810
data sheet 3-pin microprocessor reset circuits az809/az810 2 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited pin configuration (sot-23) n package 1 2 3 v cc gnd reset/reset figure 2. pin configuration of az809/810 (top view) pin description pin number pin name function az809 az810 1 1 gnd ground pin 2reset reset is asserted low if v cc falls below the reset thre shold and remains low for the 240ms typical reset timeout period (140ms minimum) after v cc exceeds the threshold 2 reset reset is asserted high if v cc falls below the reset threshold 33 v cc power supply input volta ge (3.0v, 3.3v, 5.0v)
1a low dropout linear regulator ap2218 data sheet 3-pin microprocessor reset circuits az809/az810 3 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited functional block diagram v cc gnd reference voltage reset logic + timer oscillator reset/reset 1 2 3 figure 3. functional block diagram of az809/810 ordering information circuit type package e1: lead free az8xx - tr: tape and reel n: sot-23 09: az809 10: az810 detect voltage: l: 4.63v s: 2.93v r: 2.63v t: 3.08v g1: green
data sheet 3-pin microprocessor reset circuits az809/az810 4 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited ordering information (continued) parameter symbol min max unit operating junction temperature range t j -40 105 o c parameter symbol value unit supply voltage v cc -0.3 to 6 v reset, reset -0.3 to v cc +0.3 v input current, v cc pin 20 ma output current, reset, reset pin 20 ma rate of rise, v cc 100 v/ s continuous power dissipation 320 mw junction temperature t j 125 o c storage temperature t stg -65 to 150 o c lead temperature (soldering, 10sec) t lead 300 o c package temperature range part number marking id packing type lead free green lead free green sot-23 -40 to 105 o c az809nltr-e1 az809nltr-g1 ec1 gc1 tape & reel az809nttr-e1 az809nttr-g1 ec4 gc4 tape & reel AZ809NSTR-E1 az809nstr-g1 ec5 gc5 tape & reel az809nrtr-e1 az809nrtr-g1 ec6 gc6 tape & reel -40 to 105 o c az810nltr-e1 az810nltr-g1 ed1 gd1 tape & reel az810nttr-e1 az810nttr-g1 ed4 gd4 tape & reel az810nstr-e1 az810nstr-g1 ed5 gd5 tape & reel az810nrtr-e1 az810nrtr-g1 ed6 gd6 tape & reel absolute maximum ratings (note 1) note 1: stresses greater than thos e 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 conditions" is not implied. exposure to "absolute max- imum ratings" for extended periods may affect device reliability. recommended operating conditions bcd semiconductor's pb-free products, as designated with "e1" suffix in the part number, are rohs compliant. products with "g1" suffix are available in green packages.
1a low dropout linear regulator ap2218 data sheet 3-pin microprocessor reset circuits az809/az810 5 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited (t a =-40 o c to 105 o c, typical values at t a =25 o c, v cc =5v for l devices, v cc =3.3v for t/s devices and v cc =3v for r devices, unless otherwise specified.) parameter symbol conditions min typ max unit input voltage (v cc ) range v cc t a =0 o c to 70 o c 1.1 5.5 v t a =-40 o c to 105 o c 1.2 5.5 supply current i cc t a =-40 o c to 85 o c, v cc <5.5v, l 11 20 a t a =-40 o c to 85 o c, v cc <3.6v, r/s/t 816 t a =85 o c to 105 o c, v cc <5.5v, l 25 t a =85 o c to 105 o c, v cc <3.6v, r/s/t 20 detect voltage v th l devices l: 4.63v t a =25 o c 4.56 4.63 4.70 v t a =-40 o c to 85 o c 4.50 4.75 t a =85 o c to 105 o c 4.40 4.86 t devices t: 3.08v t a =25 o c 3.04 3.08 3.11 t a =-40 o c to 85 o c 3.00 3.15 t a =85 o c to 105 o c 2.92 3.23 s devices s: 2.93v t a =25 o c 2.89 2.93 2.96 t a =-40 o c to 85 o c 2.85 3.00 t a =85 o c to 105 o c 2.78 3.08 r devices r: 2.63v t a =25 o c 2.59 2.63 2.66 t a =-40 o c to 85 o c 2.55 2.70 t a =85 o c to 105 o c 2.50 2.76 detect voltage temperature coefficient 0.003 %/ o c v cc to reset delay v cc =v th to v th -100mv 20 s electrical characteristics
data sheet 3-pin microprocessor reset circuits az809/az810 6 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited parameter symbol conditions min typ max unit reset active timeout period t a =-40 o c to 85 o c 140 240 560 ms t a =85 o c to 105 o c 100 840 low reset output voltage (az809) v ol v cc =v th min, i sink =1.2ma, az809r/s/t 0.3 v v cc =v th min, i sink =3.2ma, az809l 0.4 v cc >1.1v, i sink =50 a0.3 high reset output voltage (az809) v cc >v th max, i source =500 a, az809r/s/t 0.8v cc v v cc >v th max, i source =800 a, az809l v cc -1.5 low reset output voltage (az810) v ol v cc =v th max, i sink =1.2ma, az810r/s/t 0.3 v v cc =v th max, i sink =3.2ma, az810l 0.4 high reset output voltage (az810) v oh 1.8v data sheet 3-pin microprocessor reset circuits az809/az810 7 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited typical application v cc v cc az809 (az810) reset (reset) gnd v cc reset input gnd figure 5. typical application of az809/810 operating diagram figure 4. reset timing diagram of az809/810 note: the reset signal is asserted low for the az809 and high for the az810 when the v cc signal falls below the threshold trip voltage and remains asserted for 240ms typical after the v cc has risen above the threshold. 5v 0v 5v 0v 5v 0v reset reset v cc az809 az810 active reset timeout period v th 240ms typical 20 s typical
data sheet 3-pin microprocessor reset circuits az809/az810 8 dec. 2012 rev. 1. 4 bcd semiconductor manufacturing limited mechanical dimensions sot-23 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) 0.300(0.012) 0.500(0.020) 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
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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