0
ACTIVE
Rating |
Catalog |
Number of series cells |
1, 2, 3, 4, 5 |
Cell chemistry |
Li-Ion/Li-Polymer |
Charge current (max) (A) |
10 |
Features |
BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit), Power Path |
Vin (min) (V) |
5 |
Vin (max) (V) |
24 |
Absolute max Vin (max) (V) |
33 |
Control topology |
Switch-Mode Buck |
Battery charge voltage (min) (V) |
2.1 |
Battery charge voltage (max) (V) |
22 |
Control interface |
Standalone (RC-Settable) |
Operating temperature range (°C) |
-40 to 85 |
VQFN (RGE)-24-16 mm² 4 x 4
The BQ2461x is a highly integrated Li-ion, Li-polymer or Lead-acid switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring.
The BQ2461x charges the battery in three phases: preconditioning, constant current, and constant voltage.
Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The BQ2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.
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