MP2617

3A Switching Charger with NVDC

Power Path Management

For Single Cell Li+ Battery

MP2617 Rev. 1.03

www.MonolithicPower.com

1

8/23/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2617 is a monolithic switch mode

battery charger with power path management

for single-cell Li-ion batteries in a wide range of

tablet and other portable devices. It integrates a

synchronous

BUCK

regulator

to

provide

regulated voltage for powering the system

output and at the same time charging the

battery. This device supports both USB and

high power DC adapter input. In USB mode, the

input current limit can be programmed to

450mA or 825mA via the logic pins to cover the

USB2.0 and USB3.0 specifications. When the

adapter input is present, the input current can

also be limited in order to avoid overloading of

the DC adapter. Input current limit can be

programmed up to 3A.

The smart power path management allows

MP2617 to regulate the system voltage for

powering an external load and charging the

battery independently and simultaneously. This

allows immediate system operation even under

missing or deeply discharged battery. When the

input current limit is reached, the system load is

satisfied in priority, then the charger will take

the remaining current to charge the battery.

Additionally, the smart power path control

allows an internal connection from battery to the

system in order to supplement additional power

to the load in the event the system power

demand increases over the input limited power

or the input is removed.

The MP2617 features high integration with all

the power switches included inside. No external

MOSFET, blocking diodes, or current sense

resistor is required.

Two status monitor output pins are provided to

indicate the battery charge status and power

source status. Other features include trickle

charge, battery temperature monitoring, timer

and thermal limiting regulation on chip.

MP2617 is available in QFN 3mmx4mm

package.

FEATURES

• 4V to 14V Operating Input Voltage

• Smart Power Path Management

• Five Control Loops: Input Current Limit,

Input Voltage Limit, Constant Charge

Current, Terminal Battery Control and

Thermal Fold-Back.

• 1.6MHz Switching Frequency

• Programmable Input Current Limit

• Programmable Charge Current

• Single Input for USB and AC adapter

• Cover

USB2.0

and

USB3.0

Input

Specification

• Fully Integrated Power Switches

• No External Blocking Diode and Sense

Resistor Required

• Charging Operation Indicator

• Built-in Programmable Charging Timer

• Thermal Limiting Regulation on Chip

• Battery Temperature Monitor

• Tiny Package Features Small Size.

APPLICATIONS

• Smart Phone

• E-Book

• GPS

• Portable Media Player

• Portable Hand-held Solution

• Tablet PC

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.