Part Number : BQ24151A
Function : Fully Integrated Switch-Mode One-Cell Li-Ion Charger
Package : 2 x 2 mm 20-Pin WCSP Type
Maker : Texas Instruments
Image : 
Description :
The bq24150A / BQ24151A is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications.
Features
• Status Output for Charging and Faults
• Automatic High Impedance Mode for Low Power Consumption
• USB Friendly Boot-Up Sequence
Official Homepage : https://www.ti.com/product/BQ24151A
Datasheet PDF Download : 
Others datasheet of same file : BQ24150A,BQ24150AYFFR,BQ24150AYFFT,BQ24151A,BQ24151AYFFRl-1-260C-UNLIM-40to85BQ24151A
