0
ACTIVE
Rating |
Catalog |
Number of series cells |
1 |
Cell chemistry |
Li-Ion/Li-Polymer |
Charge current (max) (A) |
2 |
Features |
BAT temp thermistor monitoring (hot/cold profile), Input OVP |
Vin (min) (V) |
4.35 |
Vin (max) (V) |
16 |
Absolute max Vin (max) (V) |
20 |
Control topology |
Switch-Mode Buck |
Battery charge voltage (min) (V) |
4.2 |
Battery charge voltage (max) (V) |
4.2 |
Control interface |
Standalone (RC-Settable) |
Operating temperature range (°C) |
-40 to 85 |
VQFN (RHL)-20-15.75 mm² 4.5 x 3.5
The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switched-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.
The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
