LT8491
High Voltage Buck-Boost Battery Charge
Controller with Maximum Power Point
Tracking (MPPT) and I2C
FEATURES DESCRIPTION VIN Range: 6V to 80V
n V
BAT Range: 1.3V to 80V
n Single Inductor Allows V Above, Below, or Equal
IN
to VBAT
n Automatic MPPT for Solar Powered Charging
n Automatic Temperature Compensatio I2C Telemetry and Configuratio Internal EEPROM for Configuration Storage
n Operation from Solar Panel or DC Supply
n Four Integrated Feedback Loops
n Synchronizable Fixed Frequency: 100kHz to 400kHz
n 64-Lead (7mm × 11mm × 0.75mm) QFN Package The LT®8491 is a buck-boost switching regulator battery
charger that implements a constant-current constantvoltage (CCCV) charging profile used for most battery
types, including sealed lead-acid (SLA), flooded, gel and
lithium-ion. n n 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 LT8491 can perform automatic
temperature compensation by sensing an external thermistor thermally coupled to the battery. The STATUS pin …
