MP2673 4-14V, 4.5A Fast Battery Charger QFN-28

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MP2673 4-14V, 4.5A Fast Battery Charger QFN-28

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MPS Battery Management charger QFN-28 Power Management

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MP2673 4-14V, 4.5A Fast Battery Charger QFN-28

The MPS MP2673 is a Fast Battery Charger. It operates from a 4 V to 14 V input and is rated for 4.5 A. It is supplied in a QFN-28 package.

The MP2673 is a highly integrated, flexible, switch-mode, battery charge management and system power-path management device designed for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications.

Key Specifications

Part Number	MP2673
Function	Fast Battery Charger
Input Voltage	4 V to 14 V
Output Voltage	5 V to 12 V
Current Rating	4.5 A
Interface	I²C
Package	QFN-28
Ordering Codes	MP2673

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 Function
Up to 4.5A Programmable Charge Current
Reverse Boost Operation Mode with up to 3A Output Current and Adjustable 5V to 12V Output Voltage
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 (NTC) Protection

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.