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LT8490

Linear Technology Corporation
Part Number LT8490
Manufacturer Linear Technology Corporation
Description Buck-Boost Battery Charge Controller
Published Jul 11, 2015
Detailed Description LT8490 Features High Voltage, High Current Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPP...
Datasheet PDF File LT8490 PDF File

LT8490
LT8490

Overview
LT8490 Features High Voltage, High Current Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT) Description n VIN Range: 6V to 80V n VBAT Range: 1.
3V to 80V n Single Inductor Allows VIN Above, Below, or Equal to VBAT n Automatic MPPT for Solar Powered Charging n Automatic Temperature Compensation n No Software or Firmware Development Required n Operation from Solar Panel or DC Supply n Input and Output Current Monitor Pins n Four Integrated Feedback Loops n Synchronizable Fixed Frequency: 100kHz to 400kHz n 64-Lead (7mm × 11mm × 0.
75mm) QFN Package Applications n Solar Powered Battery Chargers n Multiple Types of Lead-Acid Battery Charging n Li-Ion Battery Charger n Battery Equipped Industrial or Portable Military Equipment The LT®8490 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.
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 (0.
75mm) 7mm × 11mm 64-lead QFN package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Typical Application Simplified Solar Powered Battery Charger Schematic GATEVCC´ GATEVCC´ Maximum Power Point Tracking FULL PANEL SCAN VPANEL 6V/DIV SOLAR PANEL TG1 BOOST1 SW1 BG1 CSP CSN BG2 SW2 BOOST2 TG2 CSNIN CSPIN VIN GATEV...


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