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STEVAL-ILL042V2：60 W, high power-factor flyback LED driver based on the L6562AT and TSM101

The STEVAL-ILL042V2 demonstration board is an LED power supply in high PF flyback configuration designed to drive a 60 W LED array. The board is based on the L6562AT and the TSM101 controller.

This configuration uses an isolated feedback with an optocoupler and a secondary side reference/error amplifier, the TSM101, for voltage and current regulation.

The TSM101 includes two op-amps. One op-amp is used for constant voltage control and the other for constant current control.

The L6562AT is a PFC controller which operates in transition mode. The highly linear multiplier includes a special circuit which is able to reduce AC input current distortion, allowing wide-range mains operation with an extremely low THD, even over a large load range.

Efficiency is high at heavy load - more than 90% can be achieved.

Designed using the L6562A and the TSM101 controllers, this system offers several advantages in terms of output current and voltage stability.

Key Features

• Mains voltage range: VAC(min) = 185, VAC(max) = 265
• Minimum mains frequency: fL = 47 Hz
• DC output voltage: VOUT = 130 V
• Maximum output current: IOUT = 0.462 A
• Minimum switching frequency: fSW(min) = 57 Hz
• Reflected voltage: VR = 195 V
• Leakage inductance spike: VSPIKE = 100 V
• Expected efficiency: 92%
• RoHS compliant

Product Specifications

Board Manufacturing Specifications

Bill of Materials

Schematic Packs

License Agreement

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Quality & Reliability