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Details, datasheet, quote on part number:PST9220
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Datasheet text preview:
MITSUMI MITSUMI
System Reset PST92XX
System Reset
Monolithic IC PST92XX Series
Outline
This reset IC in an ultra-compact package provides highly accurate detection and includes a delay circuit.
Features
1. Delay circuit 2. High detection accuracy 3. Low consumption current delay time can be set through an external capacitor. Vs±1.5%. 3µA typ.
Package
SOT-25
Applications
Microcomputer reset and detection of remaining battery charge.
Pin Assignment
1 5 4 2 3 1 2 3 4 5 SOT-25 (TOP VIEW) TC SUB GND VOUT VCC
Equivalent Circuit Diagram
MITSUMI MITSUMI
System Reset PST92XX
Pin Description
Pin No. Pin name 1 TC 2 SUB 3 GND 4 VOUT 5 VCC Note 1 : Connect to GND. Functions TPLH control pin Substrate pin*1 GND pin Reset signal output pin VCC pin/voltage detect pin
Absolute Maximum Ratings
Item Storage temperature Operating temperature Supply voltage Allowable loss Symbol TSTG TOPR VCC max. Pd Ratings -40~+125 -20~+175 -0.3~+110 150 Unit °C °C V mW
Recommended Operating Conditions
Item Operating temperature Supply voltage Symbol TOPR VCC Ratings -20~+75 -0.3~+10 Unit °C V
Electrical Characteristics
Item Symbol
(Ta=25°C) (Except where noted otherwise, resistance unit is ) Measurement circuit Measurement conditions PST9246 PST9245 PST9244 PST9243 PST9242 PST9241 PST9240 PST9239 PST9238 PST9237 PST9236 PST9235 PST9234 PST9233 PST9232 PST9231 PST9230 PST9229 PST9228 PST9227 PST9226 PST9225 PST9224 PST9223 PST9222 PST9221 PST9220 PST9219 Min. 4.531 4.432 4.334 4.235 4.137 4.038 3.940 3.841 3.743 3.644 3.546 3.447 3.349 3.250 3.152 3.053 2.955 2.856 2.758 2.659 2.561 2.462 2.364 2.265 2.167 2.068 1.970 1.871 Typ. 4.600 4.500 4.400 4.300 4.200 4.100 4.000 3.900 3.800 3.700 3.600 3.500 3.400 3.300 3.200 3.100 3.000 2.900 2.800 2.700 2.600 2.500 2.400 2.300 2.200 2.100 2.000 1.900 Max. 4.669 4.568 4.466 4.365 4.263 4.162 4.060 3.959 3.857 3.756 3.654 3.553 3.451 3.350 3.248 3.147 3.045 2.944 2.842 2.741 2.639 2.538 2.436 2.335 2.233 2.132 2.030 1.929 Unit
Detecting voltage
VS
1
VCC=H L RL=4.7k VOL < 0.4V =
V
MITSUMI MITSUMI
System Reset PST92XX
Item Hysteresis voltage
Symbol Vs
Measurement circuit 1 1 1 1 1 1 2 2 1 1 1
Measurement conditions H L, RL=4.7k S1 : ON RL=4.7k, Ta=-20~+75°C S1 : ON VCC1=VSmin. -0.05V RL=4.7k S1 : ON VCC1=VCC2=10V S2 : ON VCC1=VSmin. -0.05V RL= VCC1=VStyp./0.85 RL= RL=4.7k, CL=100pF Cd=0.01µF *1 RL=4.7k, CL=100pF Cd=0.01µF *2 < RL=4.7k VOL = 0.4V S1 : ON VCC1=VSmin. -0.05V VCC2=0.4V S2 : ON VCC1=VSmin. -0.05V Ta=-20~+75°C S2 : ON VCC1=L
Min. 25
Typ. 50 ±0.01 0.1 5.0 3.0 (*3) (*3) 0.65
Max. 100
Unit mV %/°C
Detecting voltage Vs/ T temperature coefficient Low level output voltage Output Leak current Circuit current at ON time Circuit current at OFF time "H" transmission delay time "L" transmission delay time Threshold operating voltage Output current at ON time 1 Output current at ON time 2 VOL IOH ICCL ICCH TPLH TPHL VOPL IOL1 IOL2
0.4 ±0.1 9.0 5.0
V µA µA µA ms µs
0.85
V mA mA
5 3
NOTE 1: TPLH : VCC=(VS typ. -0.4V) (VS typ. +0.4V) NOTE 2 : TPLH : VCC=(VS typ. +0.4V) (VS typ. -0.4V) NOTE 3 : Tables of PST92 series transmission delay time (Please see below.) TPLH 195 190 185 180 175 170 165 160 155 150 145 140 135 130 125 120 115 110 105 100 95 90 85 80 75 70 65 60 TPHL 140 140 140 140 140 140 140 140 120 120 120 120 120 120 120 120 120 120 100 100 100 100 100 100 100 100 100 100
PST9246 PST9245 PST9244 PST9243 PST9242 PST9241 PST9240 PST9239 PST9238 PST9237 PST9236 PST9235 PST9234 PST9233 PST9232 PST9231 PST9230 PST9229 PST9228 PST9227 PST9226 PST9225 PST9224 PST9223 PST9222 PST9221 PST9220 PST9219
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