PST7028中文資料三美數據手冊PDF規(guī)格書

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=2μA typ. ICCL=3μA typ.

3. Low operating limit voltage 0.65V typ.

4. Hysteresis voltage provided in detection voltage 50mV typ.

5. Output current high for ON 30mA typ.

6. Detection voltage can be selected as desired within a range of 1.9V~4.6V in 0.1V steps, as indicated below.

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.