RDK-752: 15W, 5V @ 1.2A and 12V @ 750mA, 85 ~ 277 VAC in

RDK-752 is a 15 W wide-range input (85 VAC – 277 VAC), dual output (5 V / 1.2 A and 12 V / 0.75 A) power converter using InnoSwitch3-EP INN3673C with >83% efficiency to deliver up to 49 mA at 5 V with 0.3 W input power at 230 VAC.

The RDK-752 User guide is an engineering report describing a non-isolated flyback converter designed to provide dual output of 5 V at 1.2 A and 12 V at 0.75 A from a wide input range of 85 VAC to 277 VAC. This power supply utilizes the INN3673C-H601 from the InnoSwitch3-EP family of devices.

The user guide contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.

• High standby mode efficiency design to deliver up to 49 mA at 5 V with 0.3 W input power at 230 VAC

• Less than 50 mW no-load consumption across input range

• Using highly integrated solution with 725 V rated power MOSFET

• >83% average efficiency at 115 VAC and 230 VAC

• >6 dB conducted EMI margin

• Over-temperature protection with hysteretic recovery

• Auto-restart output short-circuit and open-loop protection