STMicroelectronics AN2811 Application Note: VIPER17-Based LED Driver

Introduces the features and application of VIPER17HN for non-isolated LED constant current driver

Brand: STMicroelectronics
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 25
File format: PDF
File size: 1.1 MB
Published: 06 August, 2012
Updated: 30 September, 2023
MD5 checksum: CBBA06BA6E40A7D218ADA9ADA5585DDD
PDF: STMicroelectronics AN2811 Application Note: VIPER17-Based LED Driver PDF

About this manual

The document details a demonstration board (STEVAL-ILLO17V1) designed as a 500 mA constant-current source for driving high-brightness LEDs in series. The circuit operates with an AC line input range from 176 V to 264 VAC and utilizes the VIPER17HN high-frequency controller chip.

What's inside

Safety instructions
Design considerations
Selected topology
General circuit description
Schematic diagram
Bill of material
Transformer design
Test results and waveforms

Frequently asked questions

What is the output current of this driver?

The driver provides a constant output current of 500 mA.

What is the maximum AC input voltage range?

The solution operates with an AC line input range from 176 V to 264 VAC.

What is the maximum output voltage?

The design supports a maximum output voltage of 7 VDC.

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