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TPS3808G33DBVR封装SOT23 TI德州仪器电源控制器监控芯片

TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

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产品介绍

Product index

The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the useradjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds. The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be useradjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 μA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (TJ ).

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器件类目

产品型号

封装描述

环境温度

是否在产

应用

丝印

电源监控IC

TPS3808G33DBVR

SOT23-6

–40~150°C

是

微控制器的应用程序/笔记本/桌面电脑

AV0

典型应用电路

Typical application circuit

resource/images/72b1d11107e945c39521d3cfbfbd5eb7_14.jpg

产品特性

Product characteristics

High Threshold Accuracy: 0.5% Typ
Very Low Quiescent Current: 2.4 μA Typical
Power-On Reset Generator with Adjustable Delay Time: 1.25 ms to 10 s

Open-Drain RESET Output
Temperature Range: –40°C to 125°C
Small SOT-23 and 2-mm × 2-mm WSON Packages

应用范围

Scope of application

: 电讯及网络

: 耳温枪

: 充电宝

: 电池及可携式电子设备

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