MP2637 datasheet(1/36 Pages) MPS

Part #	MP2637

Description	2.5A Single Cell Switch Mode Battery Charger with Power Path Management (PPM) and 2.4A Boost Current with Trickle Timer

PDF	36 Pages

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Manufacturer	MPS [Monolithic Power Systems]

Direct Link	http://www.monolithicpower.com

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MP2637

2.5A Single Cell Switch Mode Battery Charger

with Power Path Management (PPM)

and 2.4A Boost Current with Trickle Timer

MP2637 Rev. 1.04

www.MonolithicPower.com

1

8/3/2017

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

DESCRIPTION

The MP2637 is a highly-integrated, flexible,

switch-mode battery charger with system power

path management, designed for single-cell Li-

ion or Li-Polymer batteries used in a wide range

of applications.

The MP2637 can operate in both charge mode

and boost mode to allow full system and battery

power management.

When input power is present, the device

operates in charge mode. It automatically

detects the battery voltage and charges the

battery in three phases: trickle current, constant

current and constant voltage. Other features

include charge termination and auto-recharge.

This device also integrates both input current

limit and input voltage regulation in order to

manage input power and meet the priority of the

system power demand.

In the absence of an input source, the MP2637

switches to boost mode through the MODE pin

to power the SYS pins from the battery. The

OLIM pin programs the output current limit in

boost mode. The MP2637 also allows for output

short circuit protection to completely disconnect

the battery from the load in the event of a short

circuit fault. Normal operation will recover as

soon as the short circuit fault is removed. The

MP2637 provides full operating status indication

to distinguish charge mode from boost mode.

To guarantee safe operation, the MP2637 limits

the die temperature to a preset value of 120

oC.

Other safety features include input over-voltage

protection,

battery

over-voltage

protection,

thermal

shutdown,

battery

temperature

monitoring, and a programmable timer to

prevent prolonged charging of a dead battery.

FEATURES

 Up to 16V Sustainable Input Voltage

 4.5V-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 Charge Voltage with

0.5% Accuracy

 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 and

Over Current Protection for Pass-Through

Path

 Reverse Boost Operation Mode for System

Power

 Up to 2.4A Programmable Output Current

Limit for Boost Mode

 Integrated Short Circuit Protection and

Output Over Voltage Protection for Boost

Mode

APPLICATIONS

 Sub-Battery Applications

 Power-Bank Applications for Smart-Phone

Tablet and Other Portable Devices

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.

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