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

Summary

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

Specifications

Manufacturer Power Integrations
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Multi Output
Eval Board Part Number 596-RDK-752-ND
Eval Board Supplier Power Integrations
Eval Board Normally In Stock
AC Voltage Universal (115 / 230V)
Outputs and Type 2 Non-Isolated
Voltage Out: Highest Current First 5V, 12V
Current Out 1.2A, 750mA
Output Power 15 W
Efficiency @ Conditions >82%, 115 ~ 277 VAC @ Full Load
No-load Input Power @ Voltage 20 mW @ 115 VAC
<40 mW @ 230 VAC
Features Open Circuit Protection
Over Voltage Protection
Short Circuit Protection
Thermal Protection
Switching Frequency 75 kHz
Internal Switch Yes
Component Count + Extras 34 + 6
Voltage In 85 ~ 277 VAC
Application / Target Market Distributed Power Systems
Power: Auxiliary Power Supply
Design Author Power Integrations
Main I.C. Base Part INN3673C
Date Created By Author 2020-06
Date Added To Library 2020-10

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