bq24013 Datasheet | Texas Instruments

FEATURES - 2 Small 3-mm × 3-mm MLP (QFN) Package - Ideal for Low-Dropout Designs for Single-Cell Li-Ion or Li-Pol Packs in Space Limited Applications - Integrated Power FET and Current Sensor for Up to 1-A Charge Applications - Reverse Leakage Protection Prevents Battery Drainage - Integrated Current and Voltage Regulation - ±0.5% Voltage Regulation Accuracy - Charge Termination by Minimum Current and Time - Pre-Charge Conditioning With Safety Timer - Status Outputs for LED or System Interface Indicates Charge and Fault Conditions - Battery Insertion and Removal Detection - Works With Regulated and Unregulated Supplies - Short-Circuit Protection - Charge Voltage Options: 4.2 V and 4.36 V APPLICATIONS - Cellular Phones - PDAs - MP3 Players - Digital Cameras - Internet Appliances DESCRIPTION The bq TINY™ series are highly integrated Li-Ion and Li-Pol linear charge management devices targeted at space limited portable applications. The bq TINY™ series offer integrated power FET and current sensor, reverse blocking protection, high accuracy current and voltage regulation, charge status, and charge termination, in a small package. The bq TINY™ charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bq TINY™ automatically restarts the charge if the battery voltage falls below an internal threshold. The bq TINY™ automatically enters sleep mode when VCC supply is removed. In addition to the standard features , different versions of the bq TINY™ offer a multitude of additional features . These include temperature sensing input for detecting hot or cold battery packs; power good (PG) output indicating the presence of valid input power; a TTL-level charge-enable input (CE) used to disable or enable the charge process; and a TTL-level timer and termination enable (TTE) input used to disable or enable the fast-charge...