TPS92411EVM-001, EVAL BOARD, TPS92411 DIRECT DRIVE SWITCH
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The TPS92411EVM-001 is an Evaluation Module for evaluate the operation and performance of TPS92411, a floating switch for offline AC linear direct drive of LEDs. The board implements a 120VAC, 12W, phase dimmable light engine with high power factor and low LED current ripple on a single-sided metal core printed circuit board (MCPCB). The included LED drive circuit is comprised of a high voltage linear regulator and TPS92411 floating switches arranged to toggle three segments of a high-voltage LED string at eight discrete points during an AC half-cycle. Unlike traditional switched mode power supply (SMPS) converters, the board uses no magnetic components or high speed switching for power processing.
• Low LED current ripple
• Uses no inductors or transformers
• >0.95 Power factor
• Triac and reverse phase dimmer compatible with smooth flicker-free response
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