MP2615B

2A, 1 Cell Li-ion Battery Charger

In 3mm x 3mm Package

MP2615B Rev. 1.0

www.MonolithicPower.com

1

3/17/2016

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

© 2016 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2615B is a monolithic switching charger

for a 1 cell lithium-Ion or lithium-Polymer battery

packed with built-in power MOSFETs. It’s able

to achieve up to 2A charge current which can

be programmed via an accurate sense resistor

over the whole input range.

MP2615B regulates the charge current and full

battery voltage using two control loops to

realize high accuracy constant current (CC)

charge and constant voltage (CV) charge.

Thanks to the constant-off-time (COT) mode

control, 99% duty cycle can be achieved when

battery voltage is close to the input voltage to

keep the charge current always at a relative

high level.

Battery temperature and charging status are

always monitored for each condition. Two

status monitor output pins are provided to

indicate the battery charging status and input

power status. The MP2615B also features

internal reverse blocking protection.

The

MP2615B

is

available

in

QFN-16

(3mmx3mm) package.

FEATURES

• 4.5V to 18V Operating Input Voltage

• Up to 99% Duty Cycle Operation

• Up to 2A Programmable Charging Current

• ±0.75% Full Battery Voltage Accuracy

• 4.03V and 3.99V Selection for Full Battery

Voltage

• Full Integrated Power Switches

• Internal Loop Compensation

• No External Reverse Blocking Diode

Required

• Preconditioning for Fully Depleted Battery

• Charging Operation Indicator

• Programmable Safety Timer

• Thermal Shutdown Protection

• Cycle-by-Cycle Over Current Protection

• Battery Temperature Monitor and Protection

APPLICATIONS

• Smart Phones

• Portable Hand-held Solutions

• Portable Media Players

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.

ADAM (Analog Digital Adaptive Modulation) and AAM (Advanced Asynchronous

Mode) are trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

5V/ 9V Input

L

VIN

CHGOK

ACOK

NTC

EN

AGND

BATT

CSP

BST

SW

MP2615B

C2

C7

R1

R2

R3

Battery

RS1

TMR

VREF

OFF

ON

SEL

CELL

PGND

0

0.5

1

1.5

2

2.5

70

75

80

85

90