MP2608 1A Dual Input Linear Battery Charger With Timer QFN10

MP2608 1A Dual Input Linear Battery Charger With Timer QFN10

The MP2608 is a dual-input, linear, high-performance low-cost single cell Li-Ion or Li-Polymer battery charger.

Key Specifications

Features

• Complete Solution for Charging Single-Cell Lion-Ion Battery
• Input Surge Up to 28V
• Adapter and USB Input
• Programmable Charge Current: 100mA to 1.0A
• Pre-set USB Charge Current: 450mA
• Proprietary Constant Voltage Auto Recharge
• Proprietary Over-Voltage Protection
• 0.75% VBATT Accuracy over Temperature
• <1µA Battery Reverse Current
• 125µA Standby Current from VIN

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