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TP7809,电压检测复位IC

TP7809】电压检测复位IC 下载TP7809规格书

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TP7809 详细介绍

General Description
The TP7809 is a micro-power voltage detector supervising the power supply voltage level for microprocessors (µP) or digital systems. It provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which covers most digital applications. It features low supply current of 3µA. The TP7809 performs supervisory function by sending out a reset signal whenever the VDD voltage falls below a preset threshold level. This reset signal will last the whole period before VDD recovering. Once VDD recovered upcrossing the threshold level, the reset signal will be released after a certain delay time. Available in the 5-lead of SOT-23 packages.

Features
● Built-in Recovery Delay Include 210ms
● Internally Fixed Threshold 1.2V to 5V in 0.1V Step
● No External Components Required
● High Accuracy 1.5%
● Low Supply Current 3 A
● Low Functional Supply Voltage 0.9V
● N-Channel Open-Drain output
● Quick Start-Up

Applications
● Computers
● CPU/MCU/DSP
● Portable
● Battery-Powered Equipment
 


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