Power by Linear™ / Analog Devices’ LT8490IUKJ#PBF is a buck-boost switching regulator battery charger. This charger implements a constant-current, constant-voltage (CCCV) charging profile used for most battery types, including sealed lead-acid (SLA), flooded, gel, and lithium-ion (Li-ion). The device operates from input voltages above, below, or equal to the output voltage and can be powered by a solar panel or a DC power supply. On-chip logic provides automatic maximum power point tracking (MPPT) for solar-powered applications. The LT8490IUKJ#PBF can perform automatic temperature compensation by sensing an external thermistor thermally coupled to the battery. STATUS and FAULT pins containing charger information can be used to drive LED indicator lamps. The device is available in a low profile 64-lead QFN package. The LT8490IUKJ#PBF is ideal as a Li-ion battery charger, solar-powered battery charger, or multi-chemistry battery charger.
Feature
- VIN Range: 6V to 80V
- VBAT Range: 1.3V to 80V
- Single Inductor Allows VIN Above, Below, or Equal to VBAT
- Automatic MPPT for Solar Powered Charging
- Automatic Temperature Compensation
- No Software or Firmware Development Required
- Operation from Solar Panel or DC Supply
- Input and Output Current Monitor Pins
- Four Integrated Feedback Loops
- Synchronizable Fixed Frequency: 100kHz to 400kHz
- 64-Lead (7mm × 11mm × 0.75mm) QFN Package
Applications
- Solar Powered Battery Chargers
- Multiple Types of Lead-Acid Battery Charging
- Li-Ion Battery Charger
- Battery Equipped Industrial or Portable Military Equipment
