MP2631 3-7V, 1A Linear Battery Charger QFN10

MP2631 3-7V, 1A Linear Battery Charger QFN10

The MP2631 is a linear, high performance single cell Li-Ion or Li-Polymer battery charger with 10mA LDO.

Key Specifications

Features

• Complete Solution for Charging Single-Cell Li-Ion Battery
• Input Surge Protection Up to 28V
• 5V LDO output
• 3V to 7V Input Operating Range
• Programmable Charge Current: 200mA to 1A
• Termination and auto-recharge
• 0.75% VBATT Accuracy over Temperature
• <1µA Battery Reverse Current
• Automatic die temperature limiting
• Fault and Charge Status Indicators

Typical Application Circuit

Applications

• Cell Phones
• Digital Cameras
• Smart Phones
• MP3 Players "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

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.

Common Questions