TPS3762-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? ASIL-D Functional Safety-Compliant targeted

– Development targeted for Functional Safety

applications

– Documentation to aid ISO 26262 system design

– Systematic capability up to ASIL-D targeted

– Hardware capability up to ASIL-D targeted

? AEC-Q100 qualified for automotive applications

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

? Monitor high voltage power rails

– Wide input voltage range: 2.7 V to 65 V

– Reverse polarity protection on sense pin -65 V

– No external components required to power off

of high voltage rail

? Device flexibility to meet design requirements

– Wide voltage threshold range: 2.7 V to 60 V

– 800 mV option - use with external resistor

divider to set threshold

– Built-in hysteresis (2 , 5 , and 10 options)

– Fixed and programmable reset time delay

– Fixed and programmable detection delay

? Designed for Safety Applications

– Output reset latching feature to help bring

system to safe state

– Ultra-fast detection time delay (<5 μs) to help

minimize system Fault Tolerant Time Interval

(FTTI)

– Built-In Self-Test to monitor device functionality

and enhance system protection

2 Applications

? Sensor fusion and cameras

? Digital cockpit processing unit

? On-board charger

? ADAS domain controller

3 Description

The TPS3762-Q1 is a 65 V input voltage supervisor

with 4 μA IDD, 0.8 accuracy, fast detection time,

and a built-in self-test feature. This device can be

connected directly to 12 V / 24 V automotive battery

system for continuous monitoring of overvoltage (OV)

or undervoltage (UV) conditions; with its internal

resistor divider, TPS3762-Q1 offers the smallest total

solution size. Wide hysteresis voltage options are

available to ignore cold crank, start-stop and various

car battery voltage transients. Built-in hysteresis on

the SENSE pin prevents false reset signals when

monitoring a supply voltage rail.

The separate VDD and SENSE pins allow

redundancy sought by high-reliability automotive

systems and SENSE can monitor higher and lower

voltages than VDD. Optional use of external resistors

are supported by the high impedance input of

the SENSE pin. CTS and CTR pins allow delay

adjustability on the rising and falling edges of the

RESET signal. The CTS functions as a debouncer

by ignoring voltage glitches on the monitored voltage

rails.

The TPS3762-Q1 is available in a 2.9 mm × 1.6 mm

SOT23 8-pin package. TPS3762-Q1 operates over

-40°C to +125°C TA.