The CoolSET™-Q1 series (ICE2QRxx80Z) is the first generation of quasi-resonant integarted 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. Operting 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 CoolSET™-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 other conventional solutions; the Active Burst Mode operation enables ultra-low power consumption at standby mode with small and controllable output voltage ripple.
Feature
- 800 V avalanche rugged CoolMOS™ with built-in startup cell
- Quasiresonant operation till very low load
- Active burst mode operation for low standby input power (< 100 mW)
- Digital frequency reduction with decreasing load for reduced switching loss
- Built-in digital soft-start
- Foldback point correction and cycle-by-cycle peak current limitation
- Maximum on/off time limitation
- Auto restart mode for VCC Overvoltage and Undervoltage protections
- Auto restart mode for overload protection
- Auto restart mode for overtemperature protection
- Latch-off mode for adjustable output overvoltage protection and transformer short-winding protection
- Active Burst Mode to reach the lowest standby power requirement <100 mW @ no load
- Quasi resonant operation
- Digital frequency reduction for better overall system efficiency
- 800 V avalanche rugged CoolMOS™ with startup cell
- Pb-free lead plating, halogen free mold compound, RoHS compliant
Applications
- 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, etc
