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  4. Step-Up (Boost) LED Drivers
  5. LT3760

Data Sheet
JP
User Guides
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Overview

Features and Benefits

  • Up to 45V of LEDs × 100mA, 8-Channel LED Driver
  • Wide Input Range : 6V to 40V (4.5V to 13V, VIN Connected to INTVCC)
  • ±2% LED Current Matching at 40mA (Typ ±0.7%)
  • Up to 3000:1 True Color PWM™ Dimming Range
  • Single Resistor Sets LED Current (20mA to 100mA)
  • LED Current Regulated Even for PVIN > VOUT
  • Output Adapts to LED VF for Optimum Efficiency
  • Fault Flag + Protection for Open LED Strings
  • Protection for LED Pin to VOUT Short
  • Parallel Channels for Higher LED Current
  • Programmable LED Current Derating vs Temperature
  • Accurate Undervoltage Lockout Threshold with Programmable Hysteresis
  • Programmable Frequency (100kHz to 1MHz)
  • Synchronizable to an External Clock

Product Details

The LT3760 is an 8-channel LED driver with a step-up DC/DC controller capable of driving up to 45V of LEDs. Each channel contains an accurate current sink with ±2% current matching. Channels follow a master programmable current to allow between 20mA to 100mA of LED current per string. Channels can be paralleled for higher LED current. Output voltage adapts to variations in LED VF for optimum efficiency and open LED faults do not affect the operation of connected LED strings.

The LT3760 allows a PWM dimming range up to 3000:1 and an analog dimming range up to 25:1. Operating frequency can be programmed from 100kHz up to 1MHz using a single resistor or synchronized to an external clock.

Additional features include: programmable maximum VOUT for open LED protection, a fault flag for open LED, programmable LED current derating vs temperature, micropower shutdown and internal soft-start. The LT3760 is available in a thermally enhanced 28-pin TSSOP Package.

Applications

  • Automotive, Notebook and TV Monitor Backlighting

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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

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Press Releases (1)
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    Tools & Simulations

    LTspice

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    Product Recommendations

    LT3760 Companion Parts

    Recommended Related Parts

    Recommended Suggested Oscillator

    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
    LT3760EFE#PBF Material Declaration Reliability Data 28-Lead TSSOP w/ EP
    LT3760EFE#TRPBF Material Declaration Reliability Data 28-Lead TSSOP w/ EP
    LT3760IFE#PBF Material Declaration Reliability Data 28-Lead TSSOP w/ EP
    LT3760IFE#TRPBF Material Declaration Reliability Data 28-Lead TSSOP w/ EP
    Wafer Fabrication Data R518 Reliability Data

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    Select Model for PCN Information
    • LT3760EFE#PBF Production
    • LT3760EFE#TRPBF Production
    • LT3760IFE#PBF Production
    • LT3760IFE#TRPBF Production

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