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SGM3727(EOL)
High Efficiency, 38V Boost White LED Driver
High Efficiency, 38V Boost White LED Driver
GENERAL DESCRIPTION

The SGM3727 is a high efficiency current-regulated white LED driver with a boost DC/DC converter. With an internal 38V/1A power MOSFET, the SGM3727 supports up to 10 white LEDs in series and achieves uniform brightness. 32-step LED current can be set by a serial pulse signal into the EN/SET pin.

The SGM3727 includes a comprehensive set of protection features such as over-voltage protection, cycle-by-cycle current limit and thermal shutdown. Built-in soft-start circuitry avoids excessive inrush current during startup.

The SGM3727 is available in a Green TDFN-2×2-8L package. It operates over an ambient temperature range of -40 to +85.

PIN CONFIGURATIONS

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FEATURES
  • Integrated 38V/1A Switch with 0.5Ω On-Resistance

  • High Efficiency Boost Bias Supply

  • Support up to 10 LEDs in Series per String

  • 32-Step LED Brightness Control through One-Wire Interface

  • Automatic Soft-Start for Reducing Inrush Current

  • No Leakage from VIN to GND through LED String

  • Protection Features

    Programmable Over-Voltage Protection

    Cycle-by-Cycle Current Limit

    Thermal Shutdown

  • -40 to +85 Operating Temperature Range

  • Available in a Green TDFN-2×2-8L Package

APPLICATIONS

Smart Phones and Portable Media Players

TFT LCD Displays

GPS/PND

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM3727YDE8G/TR EOL TDFN-2×2-8L 8 Y -40℃ to +85℃ Samples