TPS3704x Quad, Triple, Dual, Single Window or Standard Voltage Supervisor

1 Features

• Designed for high performance and safety:

(maximum)

– High threshold accuracy: ±1% (maximum)

– Built-in precision hysteresis:

• Designed for a wide range of applications:

– Quad, triple, dual, or single voltage supervisor

• TPS37044, 3, 2, 1: 4, 3, 2, 1 - channels

– (UV / OV) threshold accuracy: ±0.1% (typical)

• Each channel can be configured

independently: window, UV, or OV

• Window tolerance: ±3% to ±11%

(can be programmed asymmetrical)

• High threshold resolution:

channel can be set independently

– Push-button monitor on all channels

• Options: 23-fixed time options ranging from

20 µs (minimum) to 1200 ms (maximum)

– Temperature range: –40°C to +125°C

• Multiple output topologies:

– TPS3704xxxO: open-drain, active-low (RESET)

– TPS3704xxxL: push-pull, active-low (RESET)

– TPS3704xxxH: push-pull, active-high (RESET)

2 Applications

• Factory automation

• Building automation

• Medical

• Motor drives

• Grid infrastructure

• Wireless infrastructure

• Data center & enterprise computing

3 Description

The TPS3704x is a low-power precision window or

standard voltage supervisor that can be configured as

a quad, triple, dual, or single channel. Each channel

has a threshold accuracy of ±1% in an 8-pin

(1.6 mm x 2.9 mm) SOT-23 package offering a small

solution size. The TPS3704x includes a very accurate

threshold detection, with high resolution, that is ideal

for systems that operate on low-voltage supply rails

and have narrow margin supply tolerances. Built-in

options from 20 μs to 1200 ms) prevent false reset

signals when monitoring multiple voltage rails.

The TPS3704x does not require any external

resistors for setting the over and under voltage

reset thresholds, which further optimizes overall high

accuracy, cost, solution size, and improves reliability

for safety systems.

Separate VDD and SENSEx pins allow monitoring of

rail voltages other than VDD or can be used as a

push-button input. Optional use of external resistors

are supported by the SENSEx pins. Each channel on

the TPS3704x can be customized to its own over and

under voltage window detection with an upper and

lower threshold tolerance that can be symmetric or

asymmetric.

Device Information

PART NUMBER

PACKAGE (1)

BODY SIZE (NOM)

TPS3704x

DDF (SOT-23 8-pin)

1.6 mm × 2.9 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

Wide V

IN

Buck

DC/DC

3.3 V

1.8 V

1.2 V

TPS37043

RESET3

SENSE1

SENSE2

SENSE3

RESET2

RESET1

VDD

VDD

RESET

Microcontroller

Typical Application Circuit

TPS3704

SNVSBZ2B – MARCH 2021 – REVISED DECEMBER 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.