TPS38800-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? ASIL-B Functional Safety-Compliant product

– Development target for Functional Safety

applications

– Documentation to aid ISO 26262 system design

– Systematic capability up to ASIL D

– Hardware capability up to ASIL B

? AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to +125°C

? 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)

2 Applications

? Advanced driver assistance system (ADAS)

? Sensor fusion

3 Description

The TPS38800-Q1/TPS388R0-Q1 device is an ASILB

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-Q1/TPS388R0-Q1 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.