BQ24650
BQ24650 is Stand-Alone Synchronous Buck Battery Charge Controller manufactured by Texas Instruments.
- Part of the bq24650 comparator family.
- Part of the bq24650 comparator family.
Features
- 1 Maximum Power Point Tracking (MPPT) capability by input Voltage regulation
- Programmable MPPT setting
- 5-V to 28-V Input solar panel
- 600-k Hz NMOS-NMOS Synchronous buck controller
- Resistor programmable float voltage
- Acmodates Li-Ion/Polymer, Li Fe PO4, lead acid chemistries
- Accuracy
- ±0.5% Charge voltage regulation
- ±3% Charge current regulation
- ±0.6% Input voltage regulation
- High Integration
- Internal loop pensation
- Internal digital soft start
- Safety
- Input overvoltage protection
- Battery temperature-sensing
- Battery absent detection
- Thermal shutdown
- Charge status outputs for LED or host processor
- Charge enable on MPPSET pin
- Automatic sleep mode for low power consumption
- < 15-μA OFF-state battery discharge current
- Small 3.5 × 3.5 mm2 16-pin QFN package
2 Applications
- Solar-powered applications
- Remote monitoring stations
- Portable handheld instruments
- 12-V to 24-V Automotive systems
- Current-limited power source
3 Description
The BQ24650 device is a highly integrated switchmode battery charge controller. It provides input voltage regulation, which reduces charge current when input voltage falls below a programmed level. When the input is powered by a solar panel, the input regulation loop lowers the charge current so that the solar panel can provide maximum power output.
The BQ24650 offers a constant-frequency synchronous PWM controller with high accuracy current and voltage regulation, charge preconditioning, charge termination, and charge status monitoring.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
VQFN (16)
3.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at the end of the data...
