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LT3486 Datasheet

LT3486 Datasheet

Dual 1.3A White LED Step-Up Converters with Wide Dimming
Part No.: LT3486
Page: 20 Pages
Size: 2562 KB
Manufacturer: Linear Technology
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Views: 3
Update Time: 2024-05-05 11:43:28
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LT3486 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT3486EDHC#PBF Tube 73 3486 1 16 -40°C ~85°C 16-Lead (5mm × 3mm) Plastic DFN  
LT3486EDHC#TRPBF Reel 2500 3486 1 16 -40°C ~85°C 16-Lead (5mm × 3mm) Plastic DFN  
LT3486EDHC#TRMPBF Reel 500 3486 1 16 -40°C ~85°C 16-Lead (5mm × 3mm) Plastic DFN  
LT3486EFE#PBF Tube 95 3486EFE 1 16 -40°C ~85°C 16-Lead Plastic TSSOP  
LT3486EFE#TRPBF Reel 2500 3486EFE 1 16 -40°C ~85°C 16-Lead Plastic TSSOP  
LT3486EFE#TRMPBF Reel 500 3486EFE 1 16 -40°C ~85°C 16-Lead Plastic TSSOP  
LT3486IFE#PBF Tube 95 3486IFE 1 16 -40°C ~125°C 16-Lead Plastic TSSOP  
LT3486IFE#TRPBF Reel 2500 3486IFE 1 16 -40°C ~125°C 16-Lead Plastic TSSOP  
LT3486IFE#TRMPBF Reel 500 3486IFE 1 16 -40°C ~125°C 16-Lead Plastic TSSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT3486 Datasheet(PDF)

LT3486 Datasheet(Picture)

LT3486 Features

  • Wide (1000:1) PWM Dimming Range with No ColorShift
  • Independent Dimming and Shutdown Control of the LED Drivers
  • Drives Up to 16 White LEDs at 25mA (8 per Driver) from a Single Li-Ion Cell
  • Drives Up to 16 White LEDs at 100mA (8 per Driver) from 12V Supply
  • ±3% LED Current Programming Accuracy
  • Open LED Protection: 36V Clamp Voltage
  • Fixed Frequency Operation: Up to 2.5MHz
  • Wide Input Voltage Range: 2.5V to 24V
  • Low Shutdown Current: ICC < 1μA
  • Overtemperature Protection
  • Available in (5mm × 3mm × 0.75mm) 16-Pin DFN and 16-Pin Thermally Enhanced TSSOP Packages

LT3486 Applications

The LT3486 is a dual step-up DC/DC converter specifically designed to drive up to 16 White LEDs (8 in series per converter) at constant current from a single Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness. The two independent converters are capable of driving asymmetric LED strings.

The dimming of the two LED strings can be controlled independently via the respective CTRL pins. An internal dimming system allows the dimming range to be extended up to 1000:1 by feeding a PWM signal to the respective PWM pins. The LT3486 operating frequency can be set with an external resistor over a 200kHz to 2.5MHz range. A low 200mV feedback voltage (±3% accuracy) minimizes power loss in the current setting resistor for better efficiency. Additional features include output voltage limiting when LEDs are disconnected and overtemperature protection.

The LT3486 is available in a space saving 16-pin DFN (5mm × 3mm × 0.75mm) and 16-pin thermally enhanced TSSOP packages.

LT3486 Description

  • Notebook PC Display
  • LED Camera Light for Cell Phones
  • Car Dashboard Lighting
  • Avionics Displays

LT3486 Datasheet Related Parts

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