BQ24272

www.ti.com bq24272 SLUSB09 – JUNE 2012 2.5A, Single Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path Management Check for Samples: bq24272 FEATURES 1 High-Efficiency Switch Mode Charger with Separate Power Path Control – Instantly Startup System from a Deeply Discharged Battery or No Battery 20V input rating, with 10.5V Over-Voltage Protection (OVP) Integrated FETs for Up to 2.5A Charge Rate Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management Safe and Accurate Battery Management Functions – 0.5% Battery Regulation Accuracy – 10% Charge Current Accuracy Voltage-based, NTC Monitoring Input (TS) – JEITA Compatible Thermal Regulation Protection for Output Current Control BAT Short-Circuit Protection Soft-Start Feature to Reduce Inrush Current Thermal Shutdown and Protection Available in Small 49-ball WCSP or QFN-24 Packages APPLICATIONS Handheld Products Portable Media Players Portable Equipment Tablets and Portable Internet Devices APPLICATION SCHEMATIC IN SW PMID BOOT System Load HOST SCL SDA CD INT BYP PGND SYS BAT STAT TS DRV TEMP PACK+ + PACK– – DESCRIPTION The bq24272 is a highly integrated single cell Li-Ion battery charger and system power path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger operates from a dedicated power source such as a wall adapter or wireless power supply for a versatile solution. ...