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PST9344

System Reset Monolithic IC PST93XX Series

Mitsumi 

MITSUMI

System Reset PST93XX

System Reset

Monolithic IC PST93XX 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.

2. Ultra-low current consumption

ICCH=2.0µA typ. ICCL=2.0µA typ.

3. Low operating limit voltage

0.65V typ.

4. Hysteresis voltage provided in detection voltage

50mV typ.

5. Output current high for ON

5mA min.

6. Detection voltage can be selected as desired within a range of 1.9V ~ 4.6V

in 0.1V steps, as indicated below.

PST93XX

detection voltage value

(Example: for 4.2V ....... PST9342)

Package

SC-82ABA (PST93 U)

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

4

3

1

2

SC-82ABA

1

NC

2

GND

3

VOUT

4

VCC

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