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RT7304 |
RT7304 is an active power factor controller specifically
designed for use as a constant current LED driver. It
embeds a Critical Conduction Mode (CRM) control that
supports high power factor across a wide range of line
voltages. By using Primary Side Regulation (PSR),
RT7304 controls the output current accurately without a
shunt regulator and a photo coupler on the secondary side,
reducing the external component count, the cost, and the
volume of the driver board.
RT7304 embeds comprehensive protection functions for
robust designs, including LED open circuit protection, LED
short circuit protection, output diode short circuit protection,
VDD Under Voltage Lockout (UVLO), VDD Over Voltage
Protection (OVP), Over Temperature Protection (OTP),
and cycle-by-cycle current limitation. |
350K |
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