Description

The ICE2QR2280G-1 is derived from CoolSETTM-Q1. The only difference is it has a lower Vcc turn off threshold. The CoolSETTM-Q1 is the first generation of quasi-resonant controller and CoolMOSTM integrated power IC. 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 25V) of IC power supply and lower power consumption. It also offers many advantages such as quasi-resonant operation till very low load, increasing the higher average system efficiency compared to other conventional solutions, achieving ultra-low power consumption with small and controllable output voltage ripple at standby mode with Active Burst Mode operation, etc.

Product Highlights

• Active Burst Mode to reach the lowest standby power requirement

   <100mW @ no load

• Quasi resonant operation

• Digital frequency reduction for better overall system efficiency

• Integrated 800V startup cell

• Pb-free lead plating, halogen free mold compound, RoHS compliant

Features

• 800V 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, under-voltage protection, over-load protection and overtemperature protection

• Latch-off mode for adjustable output over-voltage protection and transformer short-winding protection

• Lower Vcc turn off threshold

Applications

• Adapter/Charger,

• LCD monitor, DVD R/W, DVD Combo, Blue-ray/DVD player, Set-top box,

• Auxiliary power supply for server, PC, Printer, TV, Home theater/Audio System, etc.