一款电压检测 LVD

一、基本概述

The TX61C series devices are a set of three terminal low power voltage detectors implemented

in CMOS technology. Each voltage detector in the series detects a particular fixed voltage ranging

from 0.9V to 5.0V. The voltage detectors consist of a high-precision and low power consumption

standard voltage source as well as a comparator,hysteresis circuit, and an output driver (CMOS

inverter or NMOS open drain). CMOS technology ensures low power consumption.

Although designed primarily as fixed voltage detectors, these devices can be used with external

components to detect user specified threshold voltages.

二、引脚定义

三、电气特性

四、Typical Performance Characteristics

(1) Output Voltage vs Input voltage

(2) Supply Current vs. Input Voltage

五、Application Circuits

Microcomputer Reset Circuit

Normally a reset circuit is required to protect the microcomputer system from malfunctions due to power line interruptions. The following examples show how

different output configurations perform a reset function in various systems. NMOS open drain output application for separate power supply

TX61C 系列器件是一组采用 CMOS 技术实现的三端低功耗电压检测器。串联中的每个电压检测器检测范围从 0.9V 到 5.0V 的特定固定电压。电压检测器由高精度低功耗标准电压源、比较器、滞后电路和输出驱动器（CMOS 反相器或 NMOS 漏极开路）组成。CMOS 技术确保低功耗。虽然主要设计为固定电压检测器，但这些设备可与外部组件一起使用，以检测用户指定的阈值电压。