LT8490
RECOMMENDED FOR NEW DESIGNSHigh Voltage, High Current Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT)
- Part Models
- 4
- 1ku List Price
- Starting From $15.50
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 2
Brochure 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT8490EUKJ#PBF | 64(58)-Lead Plastic QFN (7mm × 11mm) | ||
| LT8490EUKJ#TRPBF | 64(58)-Lead Plastic QFN (7mm × 11mm) | ||
| LT8490IUKJ#PBF | 64(58)-Lead Plastic QFN (7mm × 11mm) | ||
| LT8490IUKJ#TRPBF | 64(58)-Lead Plastic QFN (7mm × 11mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 9, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LT8490EUKJ#PBF | PRODUCTION | |
| LT8490EUKJ#TRPBF | PRODUCTION | |
| LT8490IUKJ#PBF | PRODUCTION | |
| LT8490IUKJ#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 2 | ||
| LTC4020 | RECOMMENDED FOR NEW DESIGNS | 55V Buck-Boost Multi-Chemistry Battery Charger |
| LT3652HV | RECOMMENDED FOR NEW DESIGNS | Power Tracking 2A Battery Charger |
| Battery Monitors & Fuel Gauges 1 | ||
| LTC3305 | RECOMMENDED FOR NEW DESIGNS | Lead Acid Battery Balancer |
| Circuit Monitors 1 | ||
| LTC2966 | RECOMMENDED FOR NEW DESIGNS | 100V Micropower Dual Voltage Monitor |
Evaluation Kits
LT8490 Demo Board | High Efficiency MPPT Buck-Boost Battery Charger Controller 17V To 54V Up To 200W Solar Panel VIN. 12V SLA Battery @ Up To 16.6A Charge Current