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L5107 - CONSTANT CUTTENT BOOST CONTROLLER

Description

The UTC L5107 is a high powered PWM boost converter optimized for constant current applications such as driving one or more strings of high power LEDs.

The powerful drive circuitry can deliver up to 70W to the LED system.

Features

  • S TSSOP-16.
  • Input voltage range: 6V~45V.
  • Feedback voltage: 0.25V±3%.
  • Maximum out power of 70W.
  • Programmable switching frequency and LED drive current.
  • Ultra low EMI via dithering on the UTC L5107.
  • Single pin for PWM dimming.
  • Protection circuit: Over voltage protection circuit Over temperature protection circuit Under-voltage Lock-out circuit.

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UNISONIC TECHNOLOGIES CO., LTD L5107 LINEAR INTEGRATED CIRCUIT CONSTANT CUTTENT BOOST CONTROLLER FOR DRIVING HIGH POWER LEDS  DESCRIPTION The UTC L5107 is a high powered PWM boost converter optimized for constant current applications such as driving one or more strings of high power LEDs. The powerful drive circuitry can deliver up to 70W to the LED system. The output current can be set by an external resistor connected the IADJ pin and GND. This average current can be reduced by applying a PWM signal to the PWMD pin. The UTC L5107 offers a dither feature to reduce EMI. The UTC L5107 has a large input voltage range from 6V to 45V and the switching frequency can be set by an external resistor between 100kHz and 1MHz for diffident LED systems.
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