Datasheet > TPS3703_V03

TPS3703_V03

更新时间： 2024-09-17 02:46:19

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TPS3703 High Accuracy Overvoltage and Undervoltage Reset IC With Time Delay and Manual Reset

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TPS3703_V03 数据手册

TPS3703

www.ti.com

SBVS249B – MAY 2020 – REVISED NOVEMBER 2020

TPS3703 High Accuracy Overvoltage and Undervoltage Reset IC With Time Delay and

Manual Reset

1 Features

3 Description

•

Input voltage range: 1.7 V to 5.5 V

Undervoltage lockout (UVLO): 1.7 V

Low quiescent current: 7 µA (Max)

High threshold accuracy:

– ± 0.25% (typical)

– ± 0.7% (–40°C to +125°C)

The TPS3703 device is an integrated overvoltage

(OV) and undervoltage (UV) monitor or reset IC in

industry’s smallest 6-pin DSE package. This highly

accurate voltage supervisor is ideal for systems that

operate on low-voltage supply rails and have narrow

margin supply tolerances. Low threshold hysteresis

prevent false reset signals when the monitored

voltage supply is in its normal range of operation.

Internal glitch immunity and noise filters further

eliminate false resets resulting from erroneous

signals.

•

Fixed window threshold levels

– 50-mV steps from 500 mV to 1.3 V

– 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 V

– Available in UV threshold only

– Window tolerance available from ±3% to ±7%

User adjustable voltage threshold levels

Internal glitch immunity and hysteresis

Fixed time delay options: 50 µs, 1 ms, 5 ms, 10

ms, 20 ms, 100 ms, 200 ms

Programmable time delay option with a single

external capacitor

Open-drain active low UV and OV monitor

RESET voltage latching output mode

The TPS3703 does not require any external resistors

for setting overvoltage and undervoltage reset

thresholds, which further optimizes overall accuracy,

cost, solution size, and improves reliability for safety

systems. The Capacitor Time (CT) pin is used to

select between the two available reset time delays

designed into each device and also to adjust the reset

time delay by connecting a capacitor. A separate

SENSE input pin and VDD pin allow for the

redundancy sought by high-reliability systems.

•

2 Applications

This device has a low typical quiescent current

specification of 4.5 µA (typical). The TPS3703 is

suitable for industrial applications and applications

that require accurate undervoltage and overvoltage

monitoring.

•

Motor drives

Factory automation and control

Home theater and entertainment

Grid infrastructure

Data center and enterprise computing

Device Information

PART NUMBER

TPS3703

PACKAGE⁽¹⁾

BODY SIZE (NOM)

WSON (6)

1.50 mm × 1.50 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

OV Threshold

Monitor Voltage

V_CORE

UV Threshold

TPS3703

SENSE

Processor

VDD

GND

10k ꢀ

RESET

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

Optional

V_IT+(OV)Accuracy (%)

D004

Integrated Overvoltage and Undervoltage

Detection

Typical Overvoltage Accuracy Distribution

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.

Product Folder Links: TPS3703

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