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USL1601 - CONSTANT CURRENT CONTROLLER

General Description

The UTC USL1601 is a high precision constant current non-isolated buck LED driver controller.

It can operate under universal AC input, also can operate 12V~600V DC input.

Key Features

  • Inductor current critical mode, No need to compensate the inductance variation.
  • 600V MOSFET integrated.
  • ±3% LED current accuracy.
  • Source driver structure, Not need the auxiliary winding for VCC.

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Other Datasheets by Unisonic Technologies

Part Number Description
USL1650 HIGH EFFICIENCY PWM BUCK LED DRIVER CONTROLLER
USL3631 NON-ISOLATED BUCK OFFLINE LED DRIVER
USL3633 NON-ISOLATED BUCK OFFLINE LED DRIVER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UNISONIC TECHNOLOGIES CO., LTD USL1601 Preliminary CONSTANT CURRENT CONTROLLER FOR NON-ISOLATED BUCK LED DRIVER CMOS IC  DESCRIPTION The UTC USL1601 is a high precision constant current non-isolated buck LED driver controller. It can operate under universal AC input, also can operate 12V~600V DC input. The UTC USL1601 integrates 600V power MOSFET, so it can use very few external components achieve excellent constant current performance. The UTC USL1601 uses high precision current sense circuit and patent method for constant current control, to achieve high precision output current and excellent line regulation. The UTC USL1601 operates in inductor current critical mode.