The bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It offers a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring,
The bq24600 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum level. An internal charge timer provides a safety backup. The bq24600 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.
| Number of series cells | 1, 2, 3, 4, 5, 6 |
| Charge current (max) (A) | 10 |
| Vin (max) (V) | 28 |
| Cell chemistry | Li-Ion/Li-Polymer |
| Battery charge voltage (min) (V) | 2.1 |
| Battery charge voltage (max) (V) | 26 |
| Absolute max Vin (max) (V) | 33 |
| Control topology | Switch-Mode Buck |
| Control interface | Standalone (RC-Settable) |
| Features | BAT temp thermistor monitoring (hot/cold profile), Power Path |
| Vin (min) (V) | 5 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| VQFN (RVA) | 16 | 12.25 mm² 3.5 x 3.5 |
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