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MP2669 4-14V, 5A Battery Charger QFN-28

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MPS Battery Management charger QFN-28 Power Management

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MP2669 4-14V, 5A Battery Charger QFN-28

The MPS MP2669 is a Battery Charger. It operates from a 4 V to 14 V input and is rated for 5 A. It is supplied in a QFN-28 package.

The MP2669 is a highly integrated, switch- mode, battery charge and system power-path management device designed for a single-cell Li-ion or Li-polymer battery for use in a wide range of portable applications.

Key Specifications

Part Number	MP2669
Function	Battery Charger
Input Voltage	4 V to 14 V
Current Rating	5 A
Interface	I²C
Package	QFN-28
Ordering Codes	MP2669

Features

4.0V to 14V Operation Voltage Range
Up to 24V Sustainable Input Voltage
BC1.2 Detection with I2C Programmable DP1/DM1 Control
Integrated Input Current-Based and Input Voltage-Based Power Management Functions
Up to 4.5A Programmable Charge Current
Analog Voltage Output IB Pin for Battery Current Monitor
Programmable 3.1 - 4.675V Charge Voltage with 0.5% Accuracy
Four LED Battery Gauge Indicators
JEITA-Compatible Negative Temperature Coefficient Protection in both Charge and Discharge Mode
Thermal Regulation and Thermal Shutdown

Typical Application Circuit

Applications

Sub-Battery Applications

Design Notes

Charge current accuracy depends on the sense resistor tolerance, so use a 1% or better part and keep its traces Kelvin-connected.
Wire the NTC input for JEITA profile control if the pack is charged over temperature.
Set the input current limit to what the adapter can actually deliver; a limit above the adapter rating causes the input rail to collapse mid-charge.
Termination current and recharge threshold dominate cycle life in shallow-cycling products.