TPS65471

www.ti.com

SLVSBE8 – JUNE 2012

SINGLE-CHIP POWER AND BATTERY MANAGEMENT IC FOR

Li-ION POWERED SYSTEMS

Check for Samples: TPS65471

1

FEATURES

2

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40-Pin QFN package (6 mm x 6 mm) With

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Integrated 3.0-V LDO Regulators

PowerPAD™

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Integrated 3.2-V LDO Regulators

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Integrated Dynamic Power Path Circuitry

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A Motor Driver Control

(VBUS, VAC, VBAT) With Power Good Signal

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LDO Regulators and Boost Converter On/Off

Outputs and Reverse Current Protection

Control

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550-mA Li-Ion Battery Charger With 2 State

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Status Outputs to Indicate the Status of the

Pins and Safety Timers

Linear Charger

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Integrated 4.25-V Synchronous Boost

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Reverse Current Prevention and Thermal Shut

Converter (PWM) and LDO to Provide Voltage

Down Circuitry

Source for LEDs

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4 LDOs for Each Function in the System

APPLICATIONS

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USB Suspend Mode

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Handheld Devices

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Reset Output

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3 LED Drivers With PWM Control

DESCRIPTION/ORDERING INFORMATION

TPS65471 integrates a Li-ion linear charger, power path management, four LDO regulators, 4.25-V synchronous

boost converter and 4.25-V LDO regulator, three LED drivers and one motor driver.

With the power path circuitry, USB-port, AC-DC adapter and Li-ion battery power can be switched seamlessly as

the power source of 3.2-V LDO output regulators. This prevents instability in the system.

The TPS65471 charger automatically selects the USB port or the AC-DC adapter.

The EN_VLDO digital input is used to turn the output of VLED4P25, VLD02 and VLD04 on or off.

The EN_VLDO3 digital input is used to turn the output of VLDO3 on or off.

The TPS65471 is available in a 40-pin QFN package with PowerPAD™.

ORDERABLE PART NUMBER

TOP-SIDE MARKING

–10°C to 125°C

RHA (QFN)

TPS65471RHA

TPS65471

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2)

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.