bq24770
Overview
The bq2477x is high-efficiency, synchronous, NVDC1 battery charge controllers, offering low component count fo.
- 1 Host-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input Range - Support SMBus (bq24770) and I2C (bq24773) - System Instant-on Operation with no Battery or Deeply Discharged Battery - Supplement Mode with Synchronous BATFET Control when Adaptor is fully loaded
- Ultra Fast Input Current DPM at 100 μs
- Ultra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6.
- High Accuracy Power / Current Monitor for CPU Throttling - Comprehensive PROCHOT Profile - Input and Battery Current Monitor (IADP/IBAT) - System Power Monitor (PMON)
- Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation - ±0.5% Charge Voltage (16 mV/step) - ±2% Input/charge Current (64 mA/step) - ±2% 40x Input / 16x Discharge / 20x Charge Current Monitor
- Support Battery LEARN Function
- High Integration - NMOS ACFET and RBFET Driver - PMOS battery FET Gate Driver - Internal Loop Compensation - Independent Comparator - Automatic Trickle Charge to Wake up Gas Gauge
- 600kHz to 1.2MHz Programmable Switching Frequency Simplified Schematic Adapter 4.5-24V N-FET Driver RAC Enhanced Safety: OCP, OVP, FET Short Adapter Detection bq24770 SMBus Controls V and I with high accuracy SMBus NVDC Charge Controller HOST
