LT8491IUKJ#PBF

LT8491 is a buck-boost switching regulator battery charger that implements a constant-current constant voltage (CCCV) charging profile used for most battery types, including sealed lead-acid (SLA), flooded, gel and lithium-ion. This 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. It can perform automatic temperature compensation by sensing an external thermistor thermally coupled to the battery. The STATUS pin can be used to drive an LED indicator lamp. It is used in application such as solar powered battery chargers, multiple types of lead-acid battery charging, Li-Ion battery charger, battery equipped industrial or portable military equipment etc.

• VIN operating voltage range is 6V to 80V
• Single inductor allows VIN above, below, or equal to VBAT
• I²C telemetry and configuration
• Internal EEPROM for configuration storage
• Four integrated feedback loops
• Switch frequency range is 100KHz to 400KHz
• VIN quiescent current is 2.65mA typical at (not switching, VEXTVCC = 0, VDD = AVDD = float)
• IN quiescent current in shutdown is 1µA maximum at (VSHDN = 0V, TA = 25°C)
• Operating junction temperature is -40°C to 125°C
• Package style is 64-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party