MP2667GG datasheet(1/35 Pages) MPS

Part #	MP2667GG

Description	5V USB, 1000mA, I 2C-Controlled Linear Charger with Power Path Management for Single-Cell, Li-Ion Battery in QFN Package

PDF	35 Pages

Scroll/Zoom	100%

Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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1 / 35 page

MP2667

5V USB, 1000mA, I2C-Controlled Linear

Charger with Power Path Management for

Single-Cell, Li-Ion Battery in QFN Package

MP2667 Rev. 1.0

www.MonolithicPower.com

1

5/8/2019

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

DESCRIPTION

The MP2667 is a highly integrated, single-cell,

Li-ion/Li-polymer battery charger with system

power

path

management

for

space-limited

portable applications. The MP2667 takes input

power from either an AC adapter or a USB port

to supply the system load and charge the

battery simultaneously. The charger function

features constant current pre-charge, constant

current fast charge (CC) and constant voltage

(CV) regulation, charge termination, and auto-

recharge.

The power path management function ensures

continuous

power

to

the

system

by

automatically selecting the input, 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 MP2667 provides a system short-circuit

protection (SCP) function 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. This

prevents the Li-ion battery from being over-

discharged. An integrated I2C control interface

allows the MP2667 to program the charging

parameters, such as the input current limit,

input minimum voltage regulation, charging

current, battery regulation voltage, safety timer,

and battery UVLO.

The MP2667 is available in a 10-pin QFN

(2mmx2mm) 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 an Ultra-Compact QFN-10

(2mmx2mm) Package

APPLICATIONS

 Wearable Devices

 Smart Handheld Devices

 Fitness Accessories

 Smartwatches

 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”, the MPS logo, and “Simple, Easy Solutions” are registered trademarks of

Monolithic Power Systems, Inc. or its subsidiaries.

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