bq24780S
Overview
The bq24780S device is a high-efficiency, synchronous battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications. The bq24780S device supports hybrid power boost mode (previously called ".
- 1 Industrial Innovative Charge Controller With Hybrid Power Boost Mode - Adapter and Battery Provides Power to System Together for Intel® CPU Turbo Mode - Ultra-Fast Transient Response of 150 µs to Enter Boost Mode - Hybrid Power Boost Mode from 4.5- to 24-V System - Charge 1- to 4-Cell Battery Pack from 4.5- to 24-V Adapter
- High Accuracy Power and Current Monitoring for CPU Throttling - Comprehensive PROCHOT Profile - ± 2% Current Monitor Accuracy - ± 5% System Power Monitor Accuracy (PMON)
- Automatic NMOS Power Source Selection from Adapter or Battery - ACFET Fast Turn on in 100 µs
- Programmable Input Current, Charge Voltage, Charge and Discharge Current Limit - ±0.4% Charge Voltage (16-mV step) - ±2% Input Current (128-mA/step) - ±2% Charge Current (64-mA/step) - ±2% Discharge Current (512-mA/step)
- High Integration - Battery LEARN Function - Battery Present Monitor - Boost Mode Indicator - Loop Compensation - BTST Diode
- Enhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit Protection
- Switching Frequency: 600 kHz, 800 kHz, and 1 MHz
- Realtime System Control on ILIM Pin to Limit Charge and Discharge Current
- 0.65 mA Adapter Standby Quiescent Current for Energy Star
