ANALOG DEVICES INC. LT8491 Buck-Boost Battery Charge Controller | New Product BriefOctober 04, 2020 by Mouser Electronics
This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.
ANALOG DEVICES INC. LT8491 Buck-Boost Battery Charge Controller
Analog Devices LT8491 Buck-Boost Battery Charge Controller is capable of charging most battery types from a solar panel or DC power supply.
The LT8491 implements a CCCV charging profile that can be used to charge sealed lead-acid, flooded, gel, and lithium ion batteries, with a battery voltage ranging from 1.3V to 80V. The design requires a single inductor and can operate at, above, or below the output voltage. It has integrated feedback loops for input and output voltage and current. The LT8491 has automatic maximum power point tracking to maximize charging performance in solar powered applications and can perform temperature compensation using an external thermistor coupled to the battery.
An I2C interface provides telemetry, status, control, and configuration, with internal EEPROM to store configuration data.
- VBAT Range: 1.3V to 80V
- VIN Range: 6V to 80V
- Single inductor allows VIN above, below, or equal to VBAT
- Four integrated feedback loops: input voltage, input current, output voltage, output current
- Automatic MPPT for Solar Powered Charging
- Automatic Temperature Compensation using external thermistor coupled to battery
- I2C Telemetry and Configuration
- Internal EEPROM for Configuration Storage
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