Part Number: BQ24727
Function: Battery SMBus Charge Controller
Package: QFN-20 Type
Manufacturer: TI
Images
Description
The BQ24727 is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. SMBus controlled input current, charge current, and charge voltage DACs allow for high regulation accuracies that can be programmed by the system power management micro-controller.
The device uses two charge pumps to separately drive N-channel MOSFETs (ACFET RBFET, and BATFET) for automatic system power source selection. SMBus controlled input current, charge current, and charge voltage digital-to-analog converters (DACs) allow for very high-regulation accuracies that can be easily programmed by the system power management microcontroller.
Pinout
Features
- SMBus-controlled synchronous buck battery charger
- Supports multi-chemistry battery charging
- Programmable charge voltage, current, and input current via DACs
- Dual charge pump drives for ACFET, RBFET, and BATFET NMOS switches
- Automatic power source selection between adapter and battery
- Real-time current limiting via ILIM pin
- Integrated loop compensation for simplified design
- Programmable adapter detection and status indication
Typical Circuit Usage
- Notebook and laptop battery charging systems
- Power management in portable electronics
- Embedded battery-powered systems
- Industrial battery charging controllers
- Smart battery charger modules
How to Choose This Part
- Select for SMBus-controlled intelligent battery charging applications
- Suitable for multi-cell lithium-ion or similar battery chemistries
- Ideal when system-level power path control is required
- Consider firmware capability for SMBus control and configuration
- Evaluate external MOSFET and thermal design requirements
Applications
- Laptops and notebooks
- Portable battery-powered devices
- Industrial handheld equipment
- Smart battery charging systems
- Embedded power management systems
Alternative / Equivalent Products
- BQ24725A
- BQ24735
- ISL6251
- MAX8731
- LTC4011
Other data sheets are available within the file: BQ727, BQ24727RGRR
BQ24727 Datasheet PDF Download
BQ24707 Datasheet
