TI TPS3808G01DBVT

简单复位/加电复位可调节/可选择1

Overview

The TPS3808G01DBVT device uses a precision reference to achieve 0.5% threshold accuracy for VIT≤ 3.3 V. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. The TPS3808G01DBVT device has a very low typical quiescent current of 2.4μA, 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).

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 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4μA, 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).

Features

? Power-On Reset Generator with Adjustable Delay

Time: 1.25 ms to 10 s

? Very Low Quiescent Current: 2.4 μA Typical

? High Threshold Accuracy: 0.5% Typ

? Fixed Threshold Voltages for Standard Voltage

Rails from 0.9 V to 5 V and Adjustable Voltage

Down to 0.4 V Are Available

? Manual Reset ( MR) Input

? Open-Drain RESET Output

? Temperature Range: –40°C to 125°C

? Small SOT-23 and 2-mm × 2-mm WSON

Packages

Applications

? DSP or Microcontroller Applications

? Notebook and Desktop Computers

? PDAs and Hand-Held Products

? Portable and Battery-Powered Products

? FPGA and ASIC Applications