MP2690 datasheet(1/37 Pages) MPS

Part #	MP2690

Description	All-in-One, 2.5A Battery Charger with 2.1A Boost Current

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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1 / 37 page

MP2690

All-in-One, 2.5A Battery Charger

with 2.1A Boost Current

MP2690 Rev.1.0

www.MonolithicPower.com

1

6/24/2016

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

DESCRIPTION

The MP2690 is a highly integrated, flexible,

switch-mode battery charger with system power-

path management and is designed for single-cell

Li-ion or Li-polymer battery use in a wide range

of applications.

The IC can operate in both charge mode and

boost mode to allow for full system and battery

power management.

The IC has an integrated IN-to-SYS pass-through

path to pass the input voltage to the system. The

pass-through path has built-in over-voltage and

over-current protection and has a higher priority

over the charging path.

When the input power is present, the device

operates in charge mode. The MP2690 detects

the battery voltage automatically and charges the

battery in three phases: trickle current, constant

current, and constant voltage. Other features

include charge termination and auto-recharge.

The MP2690 also integrates both input current

limit and input voltage regulation to manage input

power and meet the priority of the system power

demand.

In the absence of an input source, the IC

switches to boost mode through PB to power

SYS from the battery. In boost mode, OLIM

programs the output current limit, and the IC

turns off at light load automatically. The IC also

uses output short-circuit protection to disconnect

the battery from the load completely in the event

of a short-circuit fault. The MP2690 resumes

normal operation once the short-circuit fault is

removed.

The 4-LED driver is integrated for voltage-based

fuel gauge indication.

Together with torch-light

control, the MP2690 provides an all-in-one

solution for power banks and similar applications

without an external micro-controller.

The MP2690 is available in a 26-pin QFN

(4mmx4mm) package.

FEATURES

 Up to 14V Sustainable Input Voltage

 4.65V to 6V Operating Input Voltage Range

 Power Management Function, Integrated

Input Current Limit, Input Voltage Regulation

 Up to 2.5A Programmable Charge Current

 Trickle-Charge Function

 Selectable 4.2V/4.35V/4.45V Charge Voltage

with 0.5% Accuracy

 4-LED Driver for Battery Fuel Gauge

Indication

 Automatic Turn-Off at Light Load

 Input Source Detection

 Output Source Signaling

 Torch-Light Control

 Negative Temperature Coefficient Pin for

Battery Temperature Monitoring

 Programmable Timer Back-Up Protection

 Thermal Regulation and Thermal Shutdown

 Internal Battery Reverse Leakage Blocking

 Integrated Over-Voltage Protection (OVP)

and Over-Current Protection (OCP) for Pass-

Through Path

 Reverse Boost Operation Mode for System

Power

 Up to 2.1A Programmable Output Current

Limit for Boost Mode

 Integrated Short-Circuit Protection (SCP) and

Output Over-Voltage Protection for Boost

Mode

APPLICATIONS

 Sub-Battery Applications

 Power-Bank Applications for Smart Phones

 Tablets and Other Portable Devices

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.

Analog digital adaptive modulation (ADAM) is a trademark of Monolithic

Power Systems, Inc.

.

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