1 Features

? ASIL-A Functional Safety-Compliant

– Development targeted for functional safety

applications

– Documentation to aid ISO 26262 system design

– Systematic capability up to ASIL D

– Hardware capability up to ASIL A

? AEC-Q100 qualified for automotive applications

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

? 1-4 channels for monitoring state-of-the art SOCs

– High ±0.25 (typical) threshold accuracy

– Configure each channel for Window, UV, or OV

voltage monitoring

– Programmable window tolerance [3 to 11

(typical*)] for each channel

– Easy to use calculator tool for adjustable

versions

– Designed to monitor Core and GPIO rails of TI

processors (AM26x, AM62x, TDA4)

? Miniature solution with low power consumption

– 5.5μA typical quiescent current

– Compact 6 pin SOT-23 package (2.9 mm x 1.6

mm)

? Additional Features

– Built-in hysteresis to prevent false trip on

RESET: 0.75 (typical)

– 23 fixed time delay options (selectable from 20

μs to 1200 ms)

– Open drain or push-pull output topology

available

2 Applications

? Advanced Driver Assistance System (ADAS)

? Automotive infotainment and cluster

? HEV/EV

? Body electronics and lighting

3 Description

The TPS3704-Q1 is an ASIL-A compliant low-power

precision window (UV +OV) voltage supervisor that

can be configured and is available in an 8-pin

(1.6 mm x 2.9 mm) SOT-23 package. This highly

accurate (±0.25) supervisor is available as a quad,

triple, dual, and or single channel options. Each

channel can be customized to its own overvoltage

and undervoltage window detection with an upper and

lower threshold tolerance that can be symmetric or

asymmetric.

TPS3704-Q1 allows for highly accurate threshold

detection with high resolution that is designed for

systems operating on low-voltage supply rails with

narrow margin supply tolerances. In addition, the

built-in low threshold hysteresis and fixed reset delay

features prevent false reset signals when monitoring

multiple voltage rails.

The TPS3704-Q1 does not require any external

resistors for setting the overvoltage and undervoltage

reset thresholds which improves reliability for safety

systems and optimizes overall accuracy, cost, solution

size. Optional use of external resistors for design

flexibility is supported by the SENSEx pins. Separate

VDD and SENSEx pins allow monitoring of voltage

rails other than VDD or alternatively enables use of a

push-button input.