RDK-839: 12W, 12V @ 1A, 85 ~ 265 VAC

Summary

RDK-839 is a 12 W Power Supply for Appliances, Auxiliary Power Supplies with a 85 VAC – 265 VAC input; 12 V, 1 A output using TinySwitch-4 IC (TNY288PG)

RDK-839 Evaluation board describes an isolated flyback converter designed to provide a nominal output voltage of 12 V at 1 A load from a wide input voltage range of 85 VAC to 265 VAC. This adapter utilizes the TNY288P from the TinySwitch-4 family of ICs, with provision for D and K packages placed on the top layer.

The User Guide contains the complete power supply specifications, bill of materials, transformer construction, circuit schematic and printed circuit board layout, along with performance data and electrical waveforms.

Specifications

Manufacturer Power Integrations
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Single Output
Eval Board Part Number 596-RDK-839-ND
Eval Board Supplier Power Integrations
Eval Board Normally In Stock
AC Voltage Universal (115 / 230V)
Outputs and Type 1 Isolated
Voltage Out 12 V
Current Out 1 A
Output Power 12 W
Features Over Voltage Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >85%, 230 VAC in, 12V @ 8.4 ~ 12 W
>83%, 115 VAC in, 12V @ 2.4 ~ 12 W
>82.5%, 85 VAC in, 12V @ 2.4 ~ 12 W
>82%, 265 VAC in, 12V @ 2.4 ~ 12 W
No-load Input Power @ Voltage 27 mW @ 115 V (without UV sensing)
28 mW @ 230 V (without UV sensing)
36 mW @ 115 V
60 mW @ 230 V
Switching Frequency 124 kHz
Internal Switch Yes
Component Count + Extras 34 + 4
Voltage In 85 ~ 265 VAC
Design Author Power Integrations
Application / Target Market Portable Devices
Power: Auxiliary Power Supply
Power: Industrial Power
RF: Metering
Set-Top Boxes
Main I.C. Base Part TNY288
Date Created By Author 2019-08
Date Added To Library 2020-10

Eval Board

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Support Documents & Media

RDK-839 - User Guide TNY284-290 - Datasheet

Media

RDK-839 - Schematic RDK-839 - Board 1 RDK-839 - Board 2 RDK-839 - Chart 1 RDK-839 - Chart 2 RDK-839 - Chart 3