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Infineon Technologies ICE5QR1070AZ | Demoboard AN_201702_PL83_008
33 W auxiliary SMPS for refrigerator using ICE5QR1070AZ
Overview
| Topology | Flyback Converter |
| Input voltage | 85-300 V |
| Output 1 | 5 V / 0.2 A |
| Output 2 | 12 V / 2.66 A |
| IC revision | 1.0 |
Description
It is a reference design for a 33 W auxiliary SMPS for a refrigerator with the latest fifth-generation Infineon QR CoolSET™ ICE5QR1070AZ. The power supply is designed with a universal input compatible with most geographic regions and dual isolated outputs (+12 V/2.66 A and +5 V/0.2 A) as typically employed in most home appliances.
Features
- High efficiency under light-load conditions to meet ENERGY STAR requirements
- Simplified circuitry with good integration of power and protection features
- Single-layer PCB design for compatibility with wave-soldering process and low-cost manufacturing
- Auto-restart protection scheme to minimize interruption to enhance end-user experience
Typical applications
- Home appliances
- Offline aux SMPS for server, PC power, aircon, refrigerator and audio, Offline main SMPS for adapter, set-top-box, water purifier, TV, industrial SMPS and POE
