MITSMI PST9235, PST9236, PST9237, PST9238, PST9239 Datasheet
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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 |
delay time can be set through an external capacitor. |
2. |
High detection accuracy |
Vs±1.5%. |
3. |
Low consumption current |
3µA typ. |
Package
SOT-25
Applications
Microcomputer reset and detection of remaining battery charge.
Pin Assignment
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1 |
TC |
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2 |
SUB |
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5 |
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4 |
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3 |
GND |
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1 |
2 |
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3 |
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4 |
VOUT |
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5 |
VCC |
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SOT-25
Equivalent Circuit Diagram
MITSUMI System Reset PST92XX
Pin Description
Pin No. |
Pin name |
Functions |
1 |
TC |
TPLH control pin |
2 |
SUB |
Substrate pin*1 |
3 |
GND |
GND pin |
4 |
VOUT |
Reset signal output pin |
5 |
VCC |
VCC pin/voltage detect pin |
Note 1 : Connect to GND.
Absolute Maximum Ratings
Item |
Symbol |
Ratings |
Unit |
Storage temperature |
TSTG |
-40~+125 |
°C |
Operating temperature |
TOPR |
-20~+175 |
°C |
Supply voltage |
VCC max. |
-0.3~+110 |
V |
Allowable loss |
Pd |
150 |
mW |
Recommended Operating Conditions
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Symbol |
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Ratings |
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Operating temperature |
TOPR |
-20~+75 |
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°C |
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Supply voltage |
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VCC |
-0.3~+10 |
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V |
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Electrical Characteristics |
(Except where noted otherwise, Ta=25°C) |
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Symbol |
Measurement |
Measurement conditions |
Min. |
Typ. |
Max. |
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Unit |
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circuit |
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PST9246 |
4.531 |
4.600 |
4.669 |
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PST9245 |
4.432 |
4.500 |
4.568 |
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PST9244 |
4.334 |
4.400 |
4.466 |
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PST9243 |
4.235 |
4.300 |
4.365 |
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PST9242 |
4.137 |
4.200 |
4.263 |
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PST9241 |
4.038 |
4.100 |
4.162 |
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PST9240 |
3.940 |
4.000 |
4.060 |
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PST9239 |
3.841 |
3.900 |
3.959 |
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PST9238 |
3.743 |
3.800 |
3.857 |
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PST9237 |
3.644 |
3.700 |
3.756 |
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PST9236 |
3.546 |
3.600 |
3.654 |
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PST9235 |
3.447 |
3.500 |
3.553 |
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VCC=H |
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PST9234 |
3.349 |
3.400 |
3.451 |
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Detecting voltage |
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VS |
1 |
RL=4.7kΩ |
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PST9233 |
3.250 |
3.300 |
3.350 |
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V |
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PST9232 |
3.152 |
3.200 |
3.248 |
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VOL = 0.4V |
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PST9231 |
3.053 |
3.100 |
3.147 |
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PST9230 |
2.955 |
3.000 |
3.045 |
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PST9229 |
2.856 |
2.900 |
2.944 |
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PST9228 |
2.758 |
2.800 |
2.842 |
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PST9227 |
2.659 |
2.700 |
2.741 |
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PST9226 |
2.561 |
2.600 |
2.639 |
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PST9225 |
2.462 |
2.500 |
2.538 |
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PST9224 |
2.364 |
2.400 |
2.436 |
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PST9223 |
2.265 |
2.300 |
2.335 |
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PST9222 |
2.167 |
2.200 |
2.233 |
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PST9221 |
2.068 |
2.100 |
2.132 |
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PST9220 |
1.970 |
2.000 |
2.030 |
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PST9219 |
1.871 |
1.900 |
1.929 |
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