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ADP5061
(Rev.:Rev0)

Tiny I2C Programmable Linear Battery Charger with Power Path and USB Mode Compatibility

Analog Devices 

Data Sheet

Tiny I2C Programmable Linear Battery Charger

with Power Path and USB Mode Compatibility

ADP5061

FEATURES

2.6 mm × 2 mm WLCSP package

Fully programmable via I2C

Flexible digital control inputs

Up to 2.1 A current from an ac charger in LDO mode

Operating input voltage from 4.0 V to 6.7 V

Tolerant input voltage from −0.5 V to +20 V (USB VBUS)

Fully compatible with USB 3.0 and USB Battery Charging

Specification 1.2

Built-in current sensing and limiting

As low as 30 mΩ battery isolation FET between battery and

charger output

Thermal regulation prevents over heating

Compliant with JEITA 1 and JEITA 2 Li-Ion battery charging

temperature specifications

SYS_EN flag permits the system to be disabled until battery is at

minimum required level for guaranteed system start-up

APPLICATIONS

Digital still cameras

Digital video cameras

Single cell Li-Ion portable equipment

PDAs, audio, and GPS devices

Portable medical devices

Mobile phones

GENERAL DESCRIPTION

The ADP5061 charger is fully compliant with USB 3.0 and the

USB Battery Charging Specification 1.2 and enables charging

via the mini USB VBUS pin from a wall charger, car charger, or

USB host port.

The ADP5061 operates from a 4 V to 6.7 V input voltage range

but is tolerant of voltages up to 20 V. The 20 V voltage tolerance

alleviates the concerns about the USB bus spiking during dis-

connect or connect scenarios.

The ADP5061 features an internal FET between the linear

charger output and the battery. This permits battery isolation

and, hence, system powering under a dead battery or no battery

TYPICAL APPLICATION CIRCUIT

AC OR

USB

VBUS

C1

10µF

VIN

CBP

C2

10nF

ADP5061

ISO_S

SYSTEM

C3

47µF

SCL

SDA

DIG_IO1

DIG_IO2

DIG_IO3

SYS_EN

CHARGER

CONTROL

BLOCK

AGND

Figure 1.

ISO_B

BAT_SNS

+ Li-ion

THR

C4

22µF

ILED

VLED

scenario, which allows for immediate system function on connec-

tion to a USB power supply.

Based on the type of USB source, which is detected by an external

USB detection chip, the ADP5061 can be set to apply the correct

current limit for optimal charging and USB compliance.

The ADP5061 has three factory programmable digital input/output

pins that provide maximum flexibility for different systems.

These digital input/output pins permit combinations of features

such as, input current limits, charging enable and disable,

charging current limits, and a dedicated interrupt output pin.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

©2012 Analog Devices, Inc. All rights reserved.

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