MP2660 datasheet(1/34 Pages) MPS

Part #	MP2660

Description	5V USB, 500mA, I2C-Controlled Linear Charger with Power Path Management for Single-Cell Li-Ion Battery

PDF	34 Pages

Scroll/Zoom	100%

Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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1 / 34 page

MP2660

5V USB, 500mA, I

2C-Controlled Linear

Charger with Power Path Management

for Single-Cell Li-Ion Battery

MP2660 Rev. 1.01

www.MonolithicPower.com

1

1/2/2018

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

DESCRIPTION

The MP2660 is a highly integrated, single-cell,

Li-ion/Li-polymer battery charger with system

power

path management for

space-limited

portable applications. This device takes input

power from either an AC adapter or a USB port

to supply the system load and charge the

battery independently. The charger section

features trickle charge, constant current (CC)

and constant voltage (CV) regulation, charge

termination, and charge status.

The power path management function ensures

continuous power to the system even with a

dead battery by automatically selecting the

input, the battery, or both to power the system.

This power stage features a low dropout

regulator from the input to the system and a

100mΩ switch from the battery to the system.

Power

path

management

separates

the

charging current from the system load, which

allows for proper charge termination and keeps

the battery in full-charge mode.

The MP2660

provides

system

short-circuit

protection (SCP) by limiting the current from the

input to the system and the battery to the

system. This feature is especially critical for

preventing

the

Li-ion

battery

from

being

damaged due to excessively high currents. An

on-chip battery under-voltage lockout (UVLO)

cuts off the path between the battery and the

system if the battery voltage drops below the

programmable battery UVLO threshold, which

prevents the Li-ion battery from being over-

discharged. An integrated I

2C control interface

allows the MP2660 to program the charging

parameters including the input current limit,

input voltage regulation limit, charging current,

battery regulation voltage, safety timer, and

battery UVLO.

The MP2660 is available in a 9-pin WCSP

(1.55mmx1.55mm) package.

FEATURES

 Compatible with 5V USB power sources

 Fully Autonomous Charger for Single-Cell

Li-Ion/Li-Polymer Batteries

 Complete Power Path Management for

Simultaneously Powering the System and

Charging the Battery

 Programmable Input Current Limit and

Minimum

Input

Voltage

Regulation

Thresholds

 ±0.5% Charging Voltage Accuracy

 13V Maximum Voltage for the Input Source

 I2C Interface for Programming Charging

Parameters and Status Reporting

 Fully Integrated Power Switches and No

External Blocking Diode Required

 Built-In

Robust

Charging

Protection

Including Battery Temperature Monitoring

and Programmable Timer

 Built-In Battery Disconnection Function for

shipping mode

 Thermal Limiting Regulation on the Chip

 Available in a ultra-compact WCSP-9

(1.55mmx1.55mm) Package

APPLICATIONS

 Wearable Devices

 Smart Handheld Devices

 Fitness Accessories

 Smart Watches

 Bluetooth Headphones

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

MPS green status, please visit the MPS website under Quality Assurance.

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

Monolithic Power Systems, Inc.

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