KTD2801 Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming

Step-Up LED Driver with Internal Diode and ExpressWire/PWM Dimming

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Features

  • Wide VIN input range: 2.7V to 5.5V
  • Wide output range: up to 10 series LEDs
  • Integrated 40V high current switch (0.52A limit)
  • High efficiency boost converter (up to 85%)
  • Highly integrated solution
    • Integrated diode
    • Internal compensation and soft start
  • ExpressWire interface dual method dimming with single pin (CTRL)
    • 256-step Serial dimming control
    • High resolution PWM dimming
  • High accuracy across full load range
  • LED open-circuit (OVP) protection
    • KTD2801 : 36V
  • Low 200mV feedback voltage
  • 1MHz High switching frequency
  • Simple, small solution size
  • < 1µA shutdown current
  • Small TDFN22-6 and Thin SOT23 package
  • RoHS and Green compliant
  • -40°C to +85°C Temperature Range

Applications

  • LED backlighting
  • Mobile Phones, Handheld Devices
  • Digital Photo Frames, Automotive Navigation

Key Electrical Specifications

Vin(Min) Vin(Max) Max. Current per Channel Channels Control Type Package
2.7V 5.5V 20mA 1 ExpressWire or PWM TSOT23-6
TDFN22-6

Typical Application Diagram

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