Texas Instruments BQ24800
The BQ24800 device is a high-efficiency, synchronous buck multi-chemistry battery charger supporting 1-, 2-, 3-, or 4-series Li+ cells, or other battery chemistries up to 19.2V. The BQ24800 provides adapter current (IADP), battery discharge current (IDCHG), and system power (PMON) signals to the host microcontroller and outputs the PROCHOT signal to throttle back CPU speed when needed. The BQ24800 supports hybrid power boost mode to boost the battery voltage to supplement the adapter when system power demand is temporarily higher than the adapter is able to provide.| Part No. | BQ24800 |
|---|---|
| Datasheet | BQ24800 Download |
| Manufacturer |  Texas Instruments |
| Description | SMBus 1- to 4-Cell Buck Battery Charge Controller |
| Buy | Stock & Price |
FEATURES
● Hybrid Power Boost Mode to power up system from adapter and battery together – Ultra-fast transient response of 150µs to enter Hybrid Power Boost Mode● Battery Only Boost Mode to support larger system transients and extend battery run time
● Peak power two-level input current limit to maximize the power from adapter and minimize battery discharge
● Charge 1- to 4-cell battery pack from 4.5V to 24V 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 100µs when exiting learn mode from battery removal
● Programmable input current, charge voltage, charge and discharge current limit – ±0.4% Charge voltage (16mV/step) – ±2% Input current (64mA/step) – ±2% Charge current (64mA/step) – ±2% Discharge current (512mA/step)
● High integration – Battery LEARN function – Batt...
