Infineon Technologies ICE5QSAG | Demoboard EVAL-IH-R5IPB-A-V1

Description

The Quasi-Resonant, ICE5QSAG is the 5th generation of quasi-resonant controller optimized for off-line switch power supply in cascode configuration. The improved digital frequency reduction with proprietary novel Quasi-Resonant operation offers lower EMI and higher efficiency for wide AC range by reducing the switching frequency difference between low and high line. The enhanced active burst mode enables flexibility in standby power range selection. The product has a wide operating range (10~25.5 V) of IC power supply and lower power consumption. The numerous protection functions including the robust line protection (both input OVP and brownout) to support the protections of the power supply system in failure situations. All of these make the ICE5QSAG an outstanding controller for Quasi-Resonant flyback converter in the market.

Features

• Minimum switching frequency difference between low & high line for higher efficiency & better EMI 
• Enhanced Active Burst Mode with selectable entry and exit standby power 
• Active Burst Mode to reach the lowest standby power <100 mW 
• Fast startup achieved with cascode configuration 
• Digital frequency reduction up to 10 zero crossings 
• Built-in digital soft start 
• Cycle-by-cycle peak current limitation 
• Maximum on/off time limitation to avoid audible noise during start up and power down 
• Robust line protection with input OVP and brownout 
• Auto restart mode protection for VCC Over Voltage, VCC Under Voltage, Over load/Open Loop, Output Over Voltage, Over Temperature 
• Limited charging current for VCC short to GND 
• Pb-free lead plating, halogen free mold compound, RoHS

Typical applications

• Auxiliary power supply for Home Appliances/white Goods, TV, PC & Server
• Blue-ray player, Set-top box & LCD/LED Monitor

More information

• Datasheet
• IC product information