パッケージ情報
| パッケージ | ピン数 VQFN (RVA) | 16 |
| 動作温度範囲 (℃) -40 to 85 |
| パッケージ数量 | キャリア 250 | SMALL T&R |
BQ24600 の特徴
- 1.2-MHz NMOS-NMOS Synchronous Buck Converter
- Stand-Alone Charger Support for Li-Ion or Li-Polymer
- 5-V – 28-V VCC Input Voltage Range and Supports
1S-6S Battery Cells - Up to 10-A Charge Current and Adapter Current
- High-Accuracy Voltage and Current Regulation
- ±0.5% Charge-Voltage Accuracy
- ±3% Charge-Current Accuracy
- Integration
- Internal Loop Compensation
- Internal Soft Start
- Safety
- Input Overvoltage Protection
- Battery Thermistor Sense Hot/Cold Charge Suspend
- Battery Detection
- Built-In Safety Timer
- Charge Overcurrent Protection
- Battery Short Protection
- Battery Overvoltage Protection
- Thermal Shutdown
- Status Outputs
- Adapter Present
- Charger Operation Status
- Charge Enable Pin
- 6-V Gate Drive for Synchronous Power Converter
- 30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle
- 16-Pin 3.5-mm × 3.5-mm QFN package
- Energy Star Low Quiescent Current Iq
- < 15-µA Off-State Battery Discharge Current
- < 1.5-mA Off-State Input Quiescent Current
BQ24600 に関する概要
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.