/ Analog Devices’™Power by Linear LT8490 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 LT8490 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 LT8490 is ideal as a Li-ion battery charger, solar-powered battery charger, or multi-chemistry battery charger.
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| Features |
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- VIN range: 6 V to 80 V
- VBAT range: 1.3 V to 80 V
- Automatic temperature compensation
- Automatic MPPT for solar-powered charging
- Single inductor allows VIN above, below, or equal to VBAT
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- 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: 100 kHz to 400 kHz
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| Applications |
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- Li-ion battery chargers
- Solar-powered battery chargers
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- Multi-chemistry battery chargers
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/ Analog Devices’™Power by Linear LT8490 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 LT8490 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 LT8490 is ideal as a Li-ion battery charger, solar-powered battery charger, or multi-chemistry battery charger.
Hong Kong, China