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PT4223 - 1-5W Primary Side CC Regulator

Description

The PT4223 is primary side constant current regulator, which is designed for high performance and cost-effective LED lighting applications.

Features

  • a complete set of integrated protection functions to protect against all fault conditions including output open/short circuit, line under-voltage, and over temperature shut down. The PT4223 is available in an SOP-8package.

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Datasheet Details

Part number PT4223
Manufacturer PowTech
File Size 361.54 KB
Description 1-5W Primary Side CC Regulator
Datasheet download datasheet PT4223 Datasheet

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Full PDF Text Transcription

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PT4223 1-5W Primary Side CC Regulator GENERAL DESCRIPTION The PT4223 is primary side constant current regulator, which is designed for high performance and cost-effective LED lighting applications. With Powtech’s proprietary constant current compensation technique accurate output current regulation is achieved without the need of a secondary feedback circuitry. Integrated primary inductance compensation circuitry provides accurate constant current operation despite variations in primary inductance. Excellent EMI performance is achieved with frequency jittering function together with soft driving control at totem pole gate drive output. The device integrates a high voltage power switch, an oscillator, a current sense circuit, CC control circuit.
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