BQ21040 Datasheet (Texas Instruments) - Single Cell Li-Ion and Li-Pol Battery Charger

BQ21040, Single Cell Li-Ion and Li-Pol Battery Charger

The bq21040 device is a highly integrated Li-Ion and Li-Pol linear battery charger device targeted at spacelimited portable applications.

The device operates from either a USB port or AC adapter.

The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

BQ21040 Features

* 1 Charging

* 1% Charge Voltage Accuracy

* 10% Charge Current Accuracy

* Low Battery Leakage Current (1 µA)

* Programmable Charge Current using External Resistor up to 800 mA

* 4.2-V Li-Ion and Li-Pol Charger

* Protection

* 30-V Input R