MITSMI PST9008, PST9008N, PST9009, PST9009N, PST9010 Datasheet
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MITSUMI |
System Reset PST90XX |
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System Reset
Monolithic IC PST90XX Series
Outline
The function of this low voltage detection type IC is to accurately reset systems after detecting the supply voltage at the time of switching power on and instantaneous power off in various CPU and other logic systems. This IC, with its super low consumption current and high precision voltage detection capacity, is most suited as a voltage check circuit for a number of products which use batteries.
Features
1. |
High precision voltage detection |
VS±2.5% max. |
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2. |
Super low current consumption |
ICCH=1.5µA typ. ICCL=1µA typ. |
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Low operating threshold voltage |
0.7V max. |
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4. |
Hysteresis voltage is provided as a detect voltage |
Vs 5% typ. |
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5. |
The detect voltage can be selected at your discretion at 0.1 V step within the range of 0.8 to 1.8V by the |
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following stipulation method. |
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PST90XX |
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Detected voltage value |
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(Example : for 0.8V ······ PST9008) |
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Package
TO-92A (PST90 |
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SOT-25A (PST90 |
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Applications
1.Reset circuits for microcomputers, CPU and MPU.
2.Reset circuit for logic circuitry.
3.Battery voltage check circuit.
4.Circuit for changing over to backup battery.
5.Level detecting circuit.
Pin Assignment
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1 |
NC |
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5 |
4 |
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2 |
SUB |
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1 |
VOUT |
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2 |
VCC |
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3 |
GND |
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3 |
GND |
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1 |
2 3 |
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4 |
VOUT |
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1 |
2 |
3 |
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5 |
VCC |
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SOT-25A |
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TO-92A |
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Note : The pin 2 of SOT-25 package is a SUB terminal. Connect it to GND.
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