Power Integrations Introduces New LED Driver Reference Design

Power Integrations has introduced new LED driver reference design (DER-286) for a 30 W LED tube replacement ballast power supply capable of achieving industry-leading efficiency levels of over 90% across a wide input-voltage range while meeting worldwide requirements for power factor (PF) and total harmonic distortion (THD).

According to the company, the DER-286 is based on the LNK419EG, a member of Power Integrations’ LinkSwitch™-PH family of ICs. LinkSwitch-PH devices combine a controller and 725 V MOSFET to dramatically reduce the complexity and component count of the design, making it ideal for the increasingly cost-sensitive market for LED-based fluorescent-tube replacements.

In addition, the LinkSwitch-PH device performs both PFC and constant-current functions in an advanced single-stage topology, eliminating the need for large, temperature-sensitive electrolytic bulk capacitors, which in turn reduces the size and increases the lifetime of the power supply.

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