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  4. MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging (Monolithic Power Systems, Inc.)
MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging-MP2639A
MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging-Monolithic Power Systems, Inc.

MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.'s Response Status

Response Rate

100.0%

Response Time

15.6hours

Relatively Fast Response

About This Product

■Summary

The MP2639A is a highly integrated and flexible switch-mode battery charge management device for 2-cell Li-ion and Li-Polymer batteries used in a wide range of portable applications. MP2639A can charge 2-cell batteries from a 5V adapter or USB input. MP2639A can operate in three modes: charging mode, discharging mode, and sleep mode. In a 2-cell application, a 5V input charges a 2-cell battery through the MP2639A operating in step-up mode. In the absence of a 5V input, the 2-cell battery voltage is discharged to a 5V output through the MP2639A operating in step-down mode. For charging function, MP2639A 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 automatic recharging. To ensure safe operation, the MP2639A limits die temperature to a preset value of 120°C. Other safety features include input overvoltage protection (OVP), battery overvoltage protection (OVP), thermal shutdown, battery temperature monitoring, and a programmable timer to prevent long-term charging of a dead battery. MP2639A is available in a QFN-26 (4mm x 4mm) package.

■Features and benefits

・Input voltage range from 4.0V to 5.75V ・Charges a 2-cell battery with 5V input ・USB compatible charger ・Integrated input current-based and input voltage-based power management functions ・Programmable input current and input voltage limits - Programmable charging current up to 2.5A for 2-cell applications ・8.4V feedback voltage with 0.5% accuracy ・Cell balance with 200mA current ・Programmable discharge current up to 5.0A ・Negative temperature coefficient pin for temperature monitoring ・No-load shutdown and push button turn-on in discharge mode ・Backup protection with programmable timer ・Discharge mode load trace compensation ・Temperature control and thermal shutdown ・Prevention of reverse leakage current of internal battery ・Integrated short circuit protection (SCP) in both charging and discharging modes

  • Product

    MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging

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1 Models of MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging

Image Part Number Price (excluding tax) Absolute Vin (max) (V) Battery Type Control Interface Icharge (max) (A) Iin (max) (A) Iotg (A) Operating Vin (max) (V) Operating Vin (min) (V) Series Cells Topology Vbatt (max) (V) Vbatt (min) (V) Votg (max) (V) Package (mm)
MP2639A 2-cell Li-ion or Li-Polymer switching charger with 5V input compatibility and integrated bi-directional charging/discharging-Part Number-MP2639A

MP2639A

Available upon quote

20

Li-Ion, Li-Polymer

Standalone

2.5

3

5

5.5

3.9

2

Boost

8.4

8.4

5

QFN-26 (4x4)

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About Company Handling This Product

Monolithic Power Systems, Inc.

Response Rate

100.0%

Response Time

15.6hrs

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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Battery Management Systems (BMS)　Monolithic Power Systems, Inc.
Monolithic Power Systems, Inc.

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