Overview
Features and Benefits
- VIN Range: 6V to 80V
- VBAT Range: 1.3V to 80V
- Single Inductor Allows VIN Above, Below, or Equal to VBAT
- Automatic MPPT for Solar Powered Charging
- Automatic Temperature Compensation
- 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: 100kHz to 400kHz
- 64-Lead (7mm × 11mm × 0.75mm) QFN Package
Product Details
The LT8490 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.
Applications
- Solar Powered Battery Chargers
- Multiple Types of Lead-Acid Battery Charging
- Li-Ion Battery Charger
- Battery Equipped Industrial or Portable Military Equipment
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
-
R555 Reliability Data3/23/2018PDF25 K
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DC2069A - Demo Manual9/22/2015PDF408K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
LT8490EUKJ#PBF | Material Declaration | Reliability Data | 64(58)-Lead Plastic QFN (7mm × 11mm) | |
LT8490EUKJ#TRPBF | Material Declaration | Reliability Data | 64(58)-Lead Plastic QFN (7mm × 11mm) | |
LT8490IUKJ#PBF | Material Declaration | Reliability Data | 64(58)-Lead Plastic QFN (7mm × 11mm) | |
LT8490IUKJ#TRPBF | Material Declaration | Reliability Data | 64(58)-Lead Plastic QFN (7mm × 11mm) | |
Wafer Fabrication Data | R555 Reliability Data |
Support & Discussions
LT8490 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.