LT3760
Info : RECOMMENDED FOR NEW DESIGNS
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LT3760

8-Channel × 100mA LED Driver

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $5.07
Features
  • 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
Additional Details
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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
Part Models 4
1ku List Price Starting From $5.07

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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LT3760EFE#TRPBF
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Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3760EFE#PBF

PRODUCTION

LT3760EFE#TRPBF

PRODUCTION

LT3760IFE#PBF

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Filter by Model

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Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT3760EFE#PBF

PRODUCTION

LT3760EFE#TRPBF

PRODUCTION

LT3760IFE#PBF

PRODUCTION

LT3760IFE#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1573A

LT3760 Demo Board | 8-Channel Boost LED Driver, 20V ≤ VIN ≤ 28V, VLED = 55V @ 100mA

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DC1573A

LT3760 Demo Board | 8-Channel Boost LED Driver, 20V ≤ VIN ≤ 28V, VLED = 55V @ 100mA

LT3760 Demo Board | 8-Channel Boost LED Driver, 20V ≤ VIN ≤ 28V, VLED = 55V @ 100mA

Product Detail

DC1573A is an 8-Channel High Voltage Boost LED Driver featuring the LT3760. The LT3760 drives up to 100mA per string and has a maximum LED string voltage of 45V. The VIN terminal is powered from an 10V to 14V input supply and is distinct from the 24V PVIN supply (20V to 28V) for best thermal performance. Overvoltage protection is set at 55V in case the LEDs are removed from the circuit. If the LEDs are opened, the FAULT terminal output flag goes low and reports the fault condition.  If one or more of the 8 LED channels is not used, its LED pin or terminal should be tied to VOUT (LED+) to disable it. Multiple channels can be tied in parallel by tying their LED1-LED8 pins together.

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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