TPS38800中文资料多通道过压和欠压 I2C 可编程电压监控器和监测器数据手册TI规格书

描述 Description

The TPS38800/TPS388R0 device is an ASIL-B device for a 2 to 8 channel window supervisor IC available in a 16-pin 3mm x 3mm QFN package. This high accuracy multichannel voltage supervisor is designed for systems that operate on low-voltage supply rails and have narrow margin supply tolerances.

I2C functionality gives flexibility in selecting thresholds, reset delays, glitch filters, and pin functionality. The internal glitch immunity and noise filters eliminate the need for external RC components to reduce false resets resulting from power transients. TPS38800/TPS388R0 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, size, and improves reliability for safety systems.

特性 Features

Monitor state-of-the art SOCs

± 6mV threshold accuracy (–40°C to +125°C)

Input voltage range: 2.5V to 5.5V

Undervoltage lockout (UVLO): 2.48V

Low quiescent current (maximum): 200µA in idle mode

Configuration of 2 to 8 channels available

Fixed window threshold levels

5mV steps from 0.2V to 1.475V

20mV steps from 0.8V to 5.5V





Miniature package and minimal component cost

3mm x 3mm QFN package

User adjustable glitch immunity via I2C

User adjustable voltage threshold levels via I2C



Designed for safety applications

Active-low open-drain NIRQ output (Latched)

Active-low open-drain NRST output (Reset Delay)

Cyclic Redundancy Checking (CRC)

Packet Error Checking (PEC)