TPS3762中文资料德州仪器数据手册PDF规格书

1 Features

• SIL-3 Functional Safety-compliant product targeted

– Development targeted for Functional Safety

applications

– Documentation to aid IEC 61508 system design

– Systematic capability up to SIL-3 targeted

– Hardware capability up to SIL-3 targeted

• 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

– 800mV 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

• Single & Multiaxis Servo Drive

• Industrial & Collaborative Robot

• Avionics

• PLC, DCS & PAC

3 Description

The TPS3762 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 industrial SELV

power rails for continuous monitoring of overvoltage

(OV) or undervoltage (UV) conditions; with its internal

resistor divider, TPS3762 offers the smallest total

solution size. Wide hysteresis voltage options are

available to ignore large 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 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 is available in a 2.9 mm × 1.6 mm

SOT23 8-pin package. TPS3762 operates over -40°C

to +125°C TA.