Чип Texas Instruments BQ24721C Smart Battery Charger with SMBus and System Power Selector, нов

- High Efficiency NMOS-NMOS Synchronous Buck Converter With User-Selectable 300 kHz or 500 kHz frequency
- bq24721C Offers Softer Turn-On, Stronger Turn-Off
- SBS-Like(1) SMBus Interface for Control and Status Communications With Host
- Programmable Battery Voltage, Charge Current, and AC Adapter Current via SBS-Like SMBus Interface
- 0.4% Charge Voltage Regulation Accuracy
- 3% Charge Current Regulation Accuracy
- 3% Adapter Current Regulation Accuracy Dynamic Power Management (DPM)
- 2% Accuracy Integrated Charge and AC Adapter 20× Current Amplifier Output
- 3-Cell and 4-Cell Li-Ion Voltage Regulation 9 V, 12 V-14.4 V, 16 V-19.2 V
- Battery Pack Voltage Operating Range 0 V-19.2 V
- AC Adapter Operating Range 8 V-28 V
- 99.5% Max Duty Cycle
- Internal Soft Start
- Integrated 5% 5-V LDO When AC Adapter Applied
- 6-V Drive Supply Voltage for Increased Efficiency
- Reverse Battery to Adapter Discharge Protection
- Battery/Adapter to System Power Selector Function
- Charge and Adapter Overcurrent Protection
- Battery Thermistor Sense, TS, Comparators
- Available in 32-Pin 5x5-mm QFN Package