Datasheet > NCP304

NCP304

更新时间： 2024-01-15 13:49:27

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Voltage Detector Series

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NCP304 数据手册

NCP304, NCP305

Voltage Detector Series

The NCP304 and NCP305 series are second generation ultra−low

current voltage detectors. These devices are specifically designed for

use as reset controllers in portable microprocessor based systems

where extended battery life is paramount.

Each series features a highly accurate undervoltage detector with

hysteresis which prevents erratic system reset operation as the

comparator threshold is crossed.

http://onsemi.com

The NCP304 series consists of complementary output devices that

are available with either an active high or active low reset output. The

NCP305 series has an open drain N−Channel output with an active low

reset output.

The NCP304 and NCP305 device series are available in the

SC−82AB package with standard undervoltage thresholds. Additional

thresholds that range from 0.9 V to 4.9 V in 100 mV steps can

be manufactured.

SC−82AB

SQ SUFFIX

CASE 419C

PIN CONNECTIONS AND

MARKING DIAGRAM

Features

Reset

Output

• Quiescent Current of 1.0 mA Typical

• High Accuracy Undervoltage Threshold of 2.0%

• Wide Operating Voltage Range of 0.8 V to 10 V

• Complementary or Open Drain Reset Output

• Active Low or Active High Reset Output

• Pb−Free Packages are Available*

GND

N.C.

(Top View)

xxx = Specific Device Code

= Date Code

Typical Applications

= Pb−Free Package

• Microprocessor Reset Controller

• Low Battery Detection

• Power Fail Indicator

ORDERING INFORMATION

See detailed ordering and shipping information in the ordering

information section on page 20 of this data sheet.

• Battery Backup Detection

NCP305LSQxxT1

Open Drain Output Configuration

NCP304xSQxxT1

Complementary Output Configuration

Input

Reset Output

ref

GND

This device contains 38 active transistors.

This device contains 37 active transistors.

* The representative block diagram depicts active low reset output ‘L’ suffix devices. The comparator

input is interchanged for the active high output ‘H’ suffix devices.

Figure 1. Representative Block Diagrams

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Publication Order Number:

NCP304/D

March, 2005 − Rev. 16

12 3 4 5 6 7...24

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