EVAL3DS01G28W Datasheet, PDF (3/15 Pages) Infineon Technologies AG – 28W-LCD – Monitor SMPS Evaluation Board with ICE3DS01G

LCD Monitor SMPS Evaluation Board with ICE3DS01G
Introduction
Application
This document is an Demoboard description for a low cost universal input LCD – Monitor power
supply designed in a typical off line flyback converter topology that utilizes the ICE3DS01G controller.
The application operates in discontinuous current mode using the burst mode during standby
condition. The board has two output voltages with secondary regulation.
The high avalanche rugged CoolMOS eliminates or reduces the need for a heatsink and permits a
SMPS design with a simply RCD snubber and a low cost standard transformer design. The lowest
area specific Rdson leads to a high efficiency and permits an operation at high ambient temperature.
ICE3DS01G
This Controller is a current mode control IC and high voltage startup current source within one
standard package designed for low cost power supplies. ICE3DS01G together with external CoolMOS
combines the optimized technology of the control IC with enhanced protection features and improved
standby power concept with the superior technology of CoolMOS. The integrated propagation delay
compensation (patented by Infineon Technologies) prevents a current overshoot, the result is a
reduced electrical stress on the MOSFET, the transformer and the output diode.
Figure 1– EVAL3DS01G28W
This document contains the power supply specification, schematic, bill of material and the transformer
construction documentation. Typical operating characteristics are presented at the rear of the report
and consist of performance curves and scope waveforms.
Note:
Design calculations for the components and the transformer were performed in accordance with the
application note “AN–SMPS–ICE3DS01G for OFF – Line Switch Mode Power Supplies”, and
FlyCal, a EXCEL based design software according to the application note AN-SMPS-ICE2AXXX. The
application note and FlyCal are available on the Internet: www.Infineon.com/CoolSET
www.Infineon.com/CoolSET
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