bq24045 - Texas Instruments

bq24045 Single Cell Li-Ion and Li-Pol Battery Charger

The bq2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2404x has a single power output that charges the b.

Features

•1 Charging
  – 1% Charge Voltage Accuracy
  – 10% Charge Current Accuracy
  – Pin Selectable USB 100mA and 500mA Maximum Input Current Limit
  – Programmable Termination and Precharge Threshold, bq24040 and bq24045
  – High voltage (4.35V) Chemistry Support with bq24045
• Protection
  – 30V Input Rating; with 6.6V or 7.1V Input Overvoltage Protection
  – Input Voltage Dynamic Power Management
  – 125°C Thermal Regulation; 150°C Thermal Shutdown Protection
  – OUT Short-Circuit Protection and ISET short detection
  – Operation over JEITA Range via Battery NTC
  – 1/2 Fast-Charge-Current at Cold, 4.06V at Hot, bq240.