Infineon ICE2QR1765G

The CoolSETTM-Q1 series (ICE2QRxx65G) is the first generation of quasi-resonant integrated power ICs. It is optimized for off-line switch mode power supply applications such as LCD monitor, DVD R/W, DVD Combo, Blue-ray DVD, set top box, etc. Operating the MOSFET switch in quasi-resonant mode, lower EMI, higher efficiency and lower voltage stress on secondary diodes are expected for the SMPS. Based on the BiCMOS technology, the CoolSETTM-Q1 series has a wide operation range (up to 25 V) of IC power supply and lower power consumption. It also offers many advantages such as a quasi-resonant operation till very low load increasing the average system efficiency compared to the other conventional solutions; the Active Burst Mode operation enables an ultra-low power consumption at standby mode with small and a controllable output voltage ripple.

• 650V avalanche rugged CoolMOSTM with built-in startup cell
• Quasi resonant operation till very low load
• Active burst mode operation for low standby input power (< 0.1W)
• Digital frequency reduction with decreasing load for reduced switching loss
• Built-in digital soft-start
• Foldback point correction, cycle-by-cycle peak current limitation and maximum on time limitation
• Auto restart mode for VCC over-voltage protection, undervoltage protection, over-load protection and overtemperature protection
• Latch-off mode for adjustable output over-voltage protection and transformer short-winding protection

• Adapter/Charger
• Blue Ray/DVD player
• Set-top Box
• Digital Photo Frame
• Auxiliary power supply of Server, PC, Printer, TV, Home theater/Audio System, White Goods