Part Number: BQ24170RGYR
Device Marking : BQ24170
Function: 1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger
Package: VQFN 24 Pin type
Manufacturer: Texas Instruments
The bq24170, bq24172, BQ24170RGYR is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charger with two integrated N-channel power MOSFETs. It offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. It closely monitors the battery pack temperature to allow charge only in a preset temperature window. It also provides battery detection, pre-conditioning, charge termination, and charge status monitoring. The thermal regulation loop reduces charge current to maintain the junction temperature of 120°C during operation.
The bq24170, bq24172 charges the battery in three phases: precondictioning, constant current, and constant voltage. The bq24170 charges one, two, or three cells (selected by CELL pin), and the bq24172 is adjustable for up to three series Li+ cells.
1. 1.6-MHz Synchronous Switched-Mode Charger with 4-A Integrated N-MOSFETs
2. Up to 94% Efficiency
3. 30-V Input Rating with Adjustable Overvoltage Protection
1. Portable Data Capture Terminals
2. Medical Diagnostics Equipment
3. Battery Backup Systems
Other data sheets are available within the file:
BQ24170, BQ24170RGYT, BQ24172, BQ24172RGYR