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mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series cmos system reset ic with delay time circuit monolithic ic pst83xx, 84xx series outline features 1. high accuracy 0.5% typ. / 2.0~6.0v 0.8% typ. / 0.8~1.9v 2. super low supply current 0.35a typ. 3. component-side product 1.101.40mm (sson-4) 4. operating-temperature range - 40~+105c 5. delay resistance accuracy 10m 10% 6. detecting voltage rank 0.8~6.0v (0.1v step) packages sson-4 sot-25a sc-82ab applications 1. reset circuits for cpus and mpus 2. reset circuits for logic circuits 3. battery voltage check circuits 4. back-up power supply switching circuits 5. level detection circuits in various cpu systems or other logic systems, when the time of a power supply injection and a power supply are severed for a moment, this ic detects supply voltage and applies reset to a system. to 1.5% of detection voltage accuracy of the conventional product, a maximum of 0.5% of super-high precision is realized, and it is more suitable for battery detection etc. the accuracy from elegance is conventionally raised from +100/-50% to 10% also about delay resistance. moreover, the component-side product is realizing the small space using sson-4. may 21, 2009
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series block diagram v dd gnd out 2 1 4 3 vref c d r d 2 1 4 3 vref v dd gnd c d out r d pst84xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package. pst83xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package.
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series pin assignment 12 43 sson-4 (top view) 1 gnd 2 out 3 c d 4 v dd sot-25a (top view) 4 2 5 3 1 1 out 2 v dd 3 gnd 4 nc 5 c d sc-82ab (top view) 1 3 2 4 1 gnd 2 v dd 3 c d 4 out pin description pin no. pin name functions 1 gnd gnd pin 2 v dd v dd pin / voltage detect pin 3 c d capacitor connect pin with delay 4 out reset signal output pin pst83xx, pst84xx pin no. pin name functions 1 gnd gnd pin 2 out reset signal output pin 3 c d capacitor connect pin with delay 4 v dd v dd pin / voltage detect pin pst83xx, pst84xx (sson-4) pin no. pin name functions 1 out reset signal output pin 2 v dd v dd pin / voltage detect pin 3 gnd gnd pin 4 nc no connection 5 c d capacitor connect pin with delay pst83xx, pst84xx (sot-25a) pst83xx, pst84xx (sc-82ab)
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series absolute maximum ratings item symbol ratings units supply voltage v dd max. - 0.3~+12.0 v output voltage out - 0.3~(v dd +0.3) v input current (v dd ) i dd 20 ma output current (reset, reset) i out 20 ma c d pin input voltage v cd v ss - 0.3~+12.0 v power dissipation p d 150 (sot-25a, sc-82ab) 330 (sson-4)(note) mw operating temperature t opr - 40~+105 c storage temperature t stg - 65~+150 c recommended operating conditions item symbol ratings units operating temperature t opr - 40~+105 c supply voltage v dd 0.70~10.0 v pst83xx item symbol ratings units supply voltage v dd max. - 0.3~+12.0 v output voltage out - 0.3~+12.0 v input current (v dd ) i dd 20 ma output current (reset, reset) i out 20 ma c d pin input voltage v cd v ss - 0.3~+12.0 v power dissipation p d 150 (sot-25a, sc-82ab) 330 (sson-4)(note) mw operating temperature t opr - 40~+105 c storage temperature t stg - 65~+150 c note : with pc board of glass epoxy. (the tab pin is not connected with pc board.) pc board size of 110400.8mm pst84xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series electrical characteristics (except where noted otherwise ta=25c) item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8308 0.7936 0.800 0.8064 v (2) 0.7800 0.8200 8309 0.8928 0.900 0.9072 0.8775 0.9225 8310 0.9920 1.000 1.0080 0.9750 1.0250 8311 1.0912 1.100 1.1088 1.0725 1.1275 8312 1.1904 1.200 1.2096 1.1700 1.2300 8313 1.2896 1.300 1.3104 1.2675 1.3325 8314 1.3888 1.400 1.4112 1.3650 1.4350 8315 1.4880 1.500 1.5120 1.4625 1.5375 8316 1.5872 1.600 1.6128 1.5600 1.6400 8317 1.6864 1.700 1.7136 1.6575 1.7425 8318 1.7856 1.800 1.8144 1.7550 1.8450 8319 1.8848 1.900 1.9152 1.8525 1.9475 8320 1.9900 2.000 2.0100 1.9500 2.0500 8321 2.0895 2.100 2.1105 2.0475 2.1525 8322 2.1890 2.200 2.2110 2.1450 2.2550 8323 2.2885 2.300 2.3115 2.2425 2.3575 8324 2.3880 2.400 2.4120 2.3400 2.4600 8325 2.4875 2.500 2.5125 2.4375 2.5625 8326 2.5870 2.600 2.6130 2.5350 2.6650 8327 2.6865 2.700 2.7135 2.6325 2.7675 8328 2.7860 2.800 2.8140 2.7300 2.8700 8329 2.8855 2.900 2.9145 2.8275 2.9725 8330 2.9850 3.000 3.0150 2.9250 3.0750 pst83xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8331 3.0845 3.1000 3.1155 v (2) 3.0225 3.1775 8332 3.1840 3.2000 3.2160 3.1200 3.2800 8333 3.2835 3.3000 3.3165 3.2175 3.3825 8334 3.3830 3.4000 3.4170 3.3150 3.4850 8335 3.4825 3.5000 3.5175 3.4125 3.5875 8336 3.5820 3.6000 3.6180 3.5100 3.6900 8337 3.6815 3.7000 3.7185 3.6075 3.7925 8338 3.7810 3.8000 3.8190 3.7050 3.8950 8339 3.8805 3.9000 3.9195 3.8025 3.9975 8340 3.9800 4.0000 4.0200 3.9000 4.1000 8341 4.0795 4.1000 4.1205 3.9975 4.2025 8342 4.1790 4.2000 4.2210 4.0950 4.3050 8343 4.2785 4.3000 4.3215 4.1925 4.4075 8344 4.3780 4.4000 4.4220 4.2900 4.5100 8345 4.4775 4.5000 4.5225 4.3875 4.6125 8346 4.5770 4.6000 4.6230 4.4850 4.7150 8347 4.6765 4.7000 4.7235 4.5825 4.8175 8348 4.7760 4.8000 4.8240 4.6800 4.9200 8349 4.8755 4.9000 4.9245 4.7775 5.0225 8350 4.9750 5.0000 5.0250 4.8750 5.1250 8351 5.0745 5.1000 5.1255 4.9725 5.2275 8352 5.1740 5.2000 5.2260 5.0700 5.3300 8353 5.2735 5.3000 5.3265 5.1675 5.4325 electrical characteristics (except where noted otherwise ta=25c) pst83xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8354 5.3730 5.4000 5.4270 v (2) 5.2650 5.5350 8355 5.4725 5.5000 5.5275 5.3625 5.6375 8356 5.5720 5.6000 5.6280 5.4600 5.7400 8357 5.6715 5.7000 5.7285 5.5575 5.8425 8358 5.7710 5.8000 5.8290 5.6550 5.9450 8359 5.8705 5.9000 5.9295 5.7525 6.0475 8360 5.9700 6.0000 6.0300 5.8500 6.1500 reset threshold hysteresis v th v dd =0v v th +1v 0v 8308 0.024 0.040 0.064 v (2) 8309 0.027 0.045 0.072 8310 0.030 0.050 0.080 8311 0.033 0.055 0.088 8312 0.036 0.060 0.096 8313 0.039 0.065 0.104 8314 0.042 0.070 0.112 8315 0.045 0.075 0.120 8316 0.048 0.080 0.128 8317 0.051 0.085 0.136 8318 0.054 0.090 0.144 8319 0.057 0.095 0.152 8320 0.060 0.100 0.160 8321 0.063 0.105 0.168 8322 0.066 0.110 0.176 8323 0.069 0.115 0.184 8324 0.072 0.120 0.192 8325 0.075 0.125 0.200 8326 0.078 0.130 0.208 8327 0.081 0.135 0.216 8328 0.084 0.140 0.224 8329 0.087 0.145 0.232 8330 0.090 0.150 0.240 8331 0.093 0.155 0.248 8332 0.096 0.160 0.256 8333 0.099 0.165 0.264 8334 0.102 0.170 0.272 8335 0.105 0.175 0.280 8336 0.108 0.180 0.288 8337 0.111 0.185 0.296 8338 0.114 0.190 0.304 8339 0.117 0.195 0.312 8340 0.120 0.200 0.320 electrical characteristics (except where noted otherwise ta=25c) pst83xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold hysteresis v th v dd =0v v th +1v 0v 8341 0.123 0.205 0.328 v (2) 8342 0.126 0.210 0.336 8343 0.129 0.215 0.344 8344 0.132 0.220 0.352 8345 0.135 0.225 0.360 8346 0.138 0.230 0.368 8347 0.141 0.235 0.376 8348 0.144 0.240 0.384 8349 0.147 0.245 0.392 8350 0.150 0.250 0.400 8351 0.153 0.255 0.408 8352 0.156 0.260 0.416 8353 0.159 0.265 0.424 8354 0.162 0.270 0.432 8355 0.165 0.275 0.440 8356 0.168 0.280 0.448 8357 0.171 0.285 0.456 8358 0.174 0.290 0.464 8359 0.177 0.295 0.472 8360 0.180 0.300 0.480 supply current i dd v dd =v th +1v 8308 ~ 8360 0.35 1.0 a (1) reset threshold temp. coef? cient v th /c ta= - 40~+85c 8308 ~ 8360 100 ppm/c (2) "l" transfer delay time t phl v dd =v th +0.4v v th - 0.4v(note) 8308 ~ 8360 2 15 100 s (7) "h" transfer delay time t plh v dd =v th - 0.4v v th +0.4v(note) 8308 ~ 8360 2 15 100 s (7) "l" output current i ol1 v dd =0.7v, v ds =0.05v 8308 ~ 8360 0.01 0.10 ma (3) i ol2 v dd =1.2v, v ds =0.5v v th 1.3v 8313 ~ 8360 0.23 2.00 i ol3 v dd =2.4v, v ds =0.5v v th 2.5v 8325 ~ 8360 1.60 8.00 i ol4 v dd =3.6v, v ds =0.5v v th 3.7v 8337 ~ 8360 3.20 12.0 "h" output current i oh1 v dd =4.8v, v ds =0.5v v th 4.7v 8308 ~ 8347 0.36 0.62 ma (4) i oh2 v dd =6.1v, v ds =0.5v 8308 ~ 8360 0.46 0.75 electrical characteristics (except where noted otherwise ta=25c) pst83xx note : this parameter is guaranteed by design.
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8408 0.7936 0.800 0.8064 v (2) 0.7800 0.8200 8409 0.8928 0.900 0.9072 0.8775 0.9225 8410 0.9920 1.000 1.0080 0.9750 1.0250 8411 1.0912 1.100 1.1088 1.0725 1.1275 8412 1.1904 1.200 1.2096 1.1700 1.2300 8413 1.2896 1.300 1.3104 1.2675 1.3325 8414 1.3888 1.400 1.4112 1.3650 1.4350 8415 1.4880 1.500 1.5120 1.4625 1.5375 8416 1.5872 1.600 1.6128 1.5600 1.6400 8417 1.6864 1.700 1.7136 1.6575 1.7425 8418 1.7856 1.800 1.8144 1.7550 1.8450 8419 1.8848 1.900 1.9152 1.8525 1.9475 8420 1.9900 2.000 2.0100 1.9500 2.0500 8421 2.0895 2.100 2.1105 2.0475 2.1525 8422 2.1890 2.200 2.2110 2.1450 2.2550 8423 2.2885 2.300 2.3115 2.2425 2.3575 8424 2.3880 2.400 2.4120 2.3400 2.4600 8425 2.4875 2.500 2.5125 2.4375 2.5625 8426 2.5870 2.600 2.6130 2.5350 2.6650 8427 2.6865 2.700 2.7135 2.6325 2.7675 8428 2.7860 2.800 2.8140 2.7300 2.8700 8429 2.8855 2.900 2.9145 2.8275 2.9725 8430 2.9850 3.000 3.0150 2.9250 3.0750 electrical characteristics (except where noted otherwise ta=25c) pst84xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8431 3.0845 3.1000 3.1155 v (2) 3.0225 3.1775 8432 3.1840 3.2000 3.2160 3.1200 3.2800 8433 3.2835 3.3000 3.3165 3.2175 3.3825 8434 3.3830 3.4000 3.4170 3.3150 3.4850 8435 3.4825 3.5000 3.5175 3.4125 3.5875 8436 3.5820 3.6000 3.6180 3.5100 3.6900 8437 3.6815 3.7000 3.7185 3.6075 3.7925 8438 3.7810 3.8000 3.8190 3.7050 3.8950 8439 3.8805 3.9000 3.9195 3.8025 3.9975 8440 3.9800 4.0000 4.0200 3.9000 4.1000 8441 4.0795 4.1000 4.1205 3.9975 4.2025 8442 4.1790 4.2000 4.2210 4.0950 4.3050 8443 4.2785 4.3000 4.3215 4.1925 4.4075 8444 4.3780 4.4000 4.4220 4.2900 4.5100 8445 4.4775 4.5000 4.5225 4.3875 4.6125 8446 4.5770 4.6000 4.6230 4.4850 4.7150 8447 4.6765 4.7000 4.7235 4.5825 4.8175 8448 4.7760 4.8000 4.8240 4.6800 4.9200 8449 4.8755 4.9000 4.9245 4.7775 5.0225 8450 4.9750 5.0000 5.0250 4.8750 5.1250 8451 5.0745 5.1000 5.1255 4.9725 5.2275 8452 5.1740 5.2000 5.2260 5.0700 5.3300 8453 5.2735 5.3000 5.3265 5.1675 5.4325 electrical characteristics (except where noted otherwise ta=25c) pst84xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold v th ta=+25c ta= - 40~+85c 8454 5.3730 5.4000 5.4270 v (2) 5.2650 5.5350 8455 5.4725 5.5000 5.5275 5.3625 5.6375 8456 5.5720 5.6000 5.6280 5.4600 5.7400 8457 5.6715 5.7000 5.7285 5.5575 5.8425 8458 5.7710 5.8000 5.8290 5.6550 5.9450 8459 5.8705 5.9000 5.9295 5.7525 6.0475 8460 5.9700 6.0000 6.0300 5.8500 6.1500 reset threshold hysteresis v th v dd =0v v th +1v 0v 8408 0.024 0.040 0.064 v (2) 8409 0.027 0.045 0.072 8410 0.030 0.050 0.080 8411 0.033 0.055 0.088 8412 0.036 0.060 0.096 8413 0.039 0.065 0.104 8414 0.042 0.070 0.112 8415 0.045 0.075 0.120 8416 0.048 0.080 0.128 8417 0.051 0.085 0.136 8418 0.054 0.090 0.144 8419 0.057 0.095 0.152 8420 0.060 0.100 0.160 8421 0.063 0.105 0.168 8422 0.066 0.110 0.176 8423 0.069 0.115 0.184 8424 0.072 0.120 0.192 8425 0.075 0.125 0.200 8426 0.078 0.130 0.208 8427 0.081 0.135 0.216 8428 0.084 0.140 0.224 8429 0.087 0.145 0.232 8430 0.090 0.150 0.240 8431 0.093 0.155 0.248 8432 0.096 0.160 0.256 8433 0.099 0.165 0.264 8434 0.102 0.170 0.272 8435 0.105 0.175 0.280 8436 0.108 0.180 0.288 8437 0.111 0.185 0.296 8438 0.114 0.190 0.304 8439 0.117 0.195 0.312 8440 0.120 0.200 0.320 electrical characteristics (except where noted otherwise ta=25c) pst84xx
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol measurement conditions rank min. typ. max. units circuit reset threshold hysteresis v th v dd =0v v th +1v 0v 8441 0.123 0.205 0.328 v (2) 8442 0.126 0.210 0.336 8443 0.129 0.215 0.344 8444 0.132 0.220 0.352 8445 0.135 0.225 0.360 8446 0.138 0.230 0.368 8447 0.141 0.235 0.376 8448 0.144 0.240 0.384 8449 0.147 0.245 0.392 8450 0.150 0.250 0.400 8451 0.153 0.255 0.408 8452 0.156 0.260 0.416 8453 0.159 0.265 0.424 8454 0.162 0.270 0.432 8455 0.165 0.275 0.440 8456 0.168 0.280 0.448 8457 0.171 0.285 0.456 8458 0.174 0.290 0.464 8459 0.177 0.295 0.472 8460 0.180 0.300 0.480 supply current i dd v dd =v th +1v 8408 ~ 8460 0.35 1.0 a (1) reset threshold temp. coef? cient v th /c ta= - 40~+85c 8408 ~ 8460 100 ppm/c (2) "l" transfer delay time t phl v dd =v th +0.4v v th - 0.4v(note) 8408 ~ 8460 2 15 100 s (6) "h" transfer delay time t plh v dd =v th - 0.4v v th +0.4v(note) 8408 ~ 8460 2 15 100 s (6) "l" output current i ol1 v dd =0.7v, v ds =0.05v 8408 ~ 8460 0.01 0.10 ma (3) i ol2 v dd =1.2v, v ds =0.5v v th 1.3v 8413 ~ 8460 0.23 2.00 i ol3 v dd =2.4v, v ds =0.5v v th 2.5v 8425 ~ 8460 1.60 8.00 i ol4 v dd =3.6v, v ds =0.5v v th 3.7v 8437 ~ 8460 3.20 12.0 output leakage current ileak v dd =10v, out=10v 8408 ~ 8460 0.1 a (3) electrical characteristics (except where noted otherwise ta=25c) pst84xx note : this parameter is guaranteed by design.
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series item symbol test condition rank min. typ. max. units circuit cd pin resistance r d 8308 ~ 8360 91011m (6) cd pin threshold voltage v tcd v dd =v th 1.1v 8308 ~ 8360 v dd 0.3 v dd 0.5 v dd 0.7 v (5) cd pin output current1 i cd1 v ds =0.1v v dd =0.7v 8308 ~ 8360 2.0 30.0 a (6) cd pin output current2 i cd2 v ds =0.5v v dd =0.8v(rank08~10) v dd =1.0v(rank11~15) v dd =1.5v(rank16~60) 8308 ~ 8310 10 100 a (6) 8311 ~ 8315 50 200 8316 ~ 8360 200 800 electrical characteristics 2 (except where noted otherwise ta=25c) pst83xx note : this device is tested at ta=25c, over temperature limits guaranteed by desigh only. pst84xx item symbol test condition rank min. typ. max. units circuit cd pin resistance r d 8408 ~ 8460 91011m (5) cd pin threshold voltage v tcd v dd =v th 1.1v 8408 ~ 8460 v dd 0.3 v dd 0.5 v dd 0.7 v (4) cd pin output current1 i cd 1 v ds =0.1v v dd =0.7v 8408 ~ 8460 2.0 30.0 a (5) cd pin output current2 i cd 2 v ds =0.5v v dd =0.8v(rank08~10) v dd =1.0v(rank11~15) v dd =1.5v(rank16~60) 8408 ~ 8410 10 100 a (5) 8411 ~ 8415 50 200 8416 ~ 8460 200 800
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series measuring circuit 4 1 2 3 v dd gnd v in i dd pst 83xx (1) v dd gnd out 2 3 1 4 v in pst 83xx (2) 2 3 1 4 v dd gnd v in out v ds i out pst 83xx (3) 2 3 1 4 v dd gnd v in out v ds i out pst 83xx (4) 2 3 4 1 v dd gnd v in out v ds c d pst 83xx (5) 2 3 4 1 v dd gnd v in v ds c d i cd pst 83xx (6) 1 4 2 3 v dd gnd v in out c d c d pst 83xx (7) v th +0.4v gnd 100% 50% gnd v th - 0.4v v th input voltage output voltage pst83xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package.
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series 4 1 2 3 v dd gnd v in i dd pst 84xx (1) 470k v dd gnd out 2 3 1 4 v in pst 84xx (2) 2 3 1 4 v dd gnd v in out v ds i out pst 84xx (3) 2 3 4 1 v dd gnd v in out v ds c d pst 84xx 470k (4) 2 3 4 1 v dd gnd v in v ds c d i cd pst 84xx (5) 1 4 2 3 v dd gnd v in out c d c d pst 84xx 470k (6) v th +0.4v gnd 100% 50% gnd v th - 0.4v v th input voltage output voltage pst84xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package.
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series timing chart supply voltage detect voltage( v th + v th ) capacitor voltage threshold voltage(v tcd ) gnd output voltage gnd delay time(t d ) t t v th v th+ v th v th tplh tphl v v v dd out delay time (t d ) t d = 0.69r d c d (f) (s) r d : c d pin resistance c d : capacitor
mitsumi cmos system reset ic with delay time circuit pst83xx, 84xx series application circuits logic system reset out v dd gnd v dd c d v in 1 2 3 4 pst 83xx logic system reset out v dd gnd v dd c d v in 1 2 3 4 pst 84xx ? we shall not be liable for any trouble or damage caused by using this circuit. ? in the event a problem which may affect industrial property or any other rights of us or a third party is encountered during the use of information described in these circuit, mitsumi electric co., ltd. shall not be liable for any such problem, nor grant a license therefore. pst 83xx 4 1 2 3 out v dd gnd c d v in pst 84xx 4 1 2 3 out v dd gnd c d v in ? please note that there is any possibility of circuit oscillation when resistance put in the line v in . ? please do not put resistance for pst83xx. ? recommend 15k or less for pst84xx. pst84xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package. pst83xx * 1 - 4 in the circuit diagram is pin number for the sson-4 package.

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