bq25898D - Texas Instruments

bq25898D I2C Controlled Single Cell 4-A Fast Charger

The bq25898, bq25898D are highly-integrated 4-A switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) bq25898 DSBGA (42) 2.80 mm x 2.50 mm bq25898D DSBGA (42) 2.80 mm.

Features

•1 High Efficiency 4-A, 1.5-MHz Switch Mode Buck Charge
  – 92% Charge Efficiency at 3 A and 91% Charge Efficiency at 4 A Charge Current
  – Optimize for High Voltage Input (9 V / 12 V)
  – Low Power PFM mode for Light Load Operations
• USB On-the-Go (OTG) with Adjustable Output from 4.5 V to 5.5 V
  – Selectable 500-KHz / 1.5-MHz Boost Converter with up-to 2.4 A Output
  – 94% Boost Efficiency at 5 V at 1 A Output
  – Accurate Hiccup Mode Overcurent Protection
• Single Input to Support USB Input and Adjustable High Voltage Adapters
  – Support 3.9-V to 14-V Input Voltage Range
  – Input Current Limit (100 mA.