MP2617A, MP2617B

3A Switching Charger with NVDC

Power Path Management

For Single Cell Li+ Battery

MP2617A, MP2617B Rev. 1.23

www.MonolithicPower.com

1

1/15/2018

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2018 MPS. All Rights Reserved.

DESCRIPTION

The MP2617A / MP2617B 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

MP2617A and MP2617B 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

MP2617A

/

MP2617B

features

high

integration with all the power switches integrate

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.

The MP2617A / MP2617B is available in QFN

3mmx4mm package.

FEATURES

 4V to 10V 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, halogen free, and adhere to the RoHS

directive. For MPS green status, please visit MPS website under Quality

Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.