MITSMI PST7019, PST7019M, PST7020, PST7020M, PST7021 Datasheet
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MITSUMI |
System Reset PST70XX |
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System Reset
Monolithic IC PST70XX Series
Outline
These low reset type ICs function in a variety of CPU systems and other logic systems, to detect power supply voltage and reset the system accurately when power is turned on or interrupted.
They are ideal for use in battery check circuits for products using batteries, as they have ultra-low current consumption and a high precision voltage detection function.
Features
1. |
High precision voltage detection |
Vs±2% max. |
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2. |
Ultra-low current consumption |
ICCH=2µA typ. ICCL=3µA typ. |
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3. |
Low operating limit voltage |
0.65V typ. |
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4. |
Hysteresis voltage provided in detection voltage |
50mV typ. |
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5. |
Output current high for ON |
30mA typ. |
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6. |
Detection voltage can be selected as desired within a range of 1.9V~4.6V |
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in 0.1V steps, as indicated below. |
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PST70XX |
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Detection voltage value |
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(Example: for 4.6V ....... PST7046)
Package
MMP-3A (PST70 |
M) |
TO-92A (PST70 |
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Applications
1.Reset circuits in microcomputers, CPUs and MPUs.
2.Logic circuit reset circuits.
3.Battery voltage check circuits.
4.Back-up power supply switching circuits.
5.Level detection circuits.
Pin Assignment
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1 |
VCC |
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1 |
3 |
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1 |
VCC |
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2 |
GND |
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2 |
GND |
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3 |
VOUT |
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2 |
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3 |
VOUT |
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1 |
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3 |
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MMP-3A |
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TO-92A
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