bq24730 Description
The bq24730 is a high efficiency synchronous battery pack charger with high level of integration for portable applications. This device implements a high performance analog front-end that interfaces to the system power management micro-controller through a hardware interface. The dynamic power management (DPM) function modifies the charge current depending on system load conditions, avoiding ac adapter overload.
bq24730 Key Features
- High Efficiency
- NMOS-NMOS Synchronous Buck Converter With Fixed 300 kHz Frequency
- Enhanced 6-V Drive Supply Voltage and 99.5% Max Duty Cycle
- High Voltage and Current Regulation Accuracy (0°C-85°C)
- 0.4% Charge Voltage Regulation Accuracy
- 4% Charge Current Regulation Accuracy
- 4% Adapter Current Regulation Accuracy Dynamic Power Management (DPM)
- 3-Cell or 4-Cell Li-Ion Battery Voltage Select
- Programmable Battery Charge Current, and
- 2% Accurate Current Sense Amplifiers for Both Input Current and Charge Current (0°C-125°C)