Description :
The CoolSET-Q1 series (ICE2QRxx65) is the firstgeneration 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 25V) of IC power supply and lower power consumption. It also offers many advantages such as: a quasi-resonant operation till very ow load increasing the average system efficiency compared to other conventional solutions; the Active Burst Mode operation enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple.
Feature
- Integrated power IC with 650V avalanche rugged CoolMOS™, startup cell and QR flyback PWM controller
- digital frequency reduction with decreasing load,
- cycle-by-cycle current limitation with fold-back correction
- built-in digital soft-start
- active burst mode for lowest standby power <50mW
- latch-off mode for short-winding and output voltage
- enhanced integrated protection functions, modulated gate drive, etc.
- Higher efficiency
- low EMI noise
- low standby power, etc.
Applications
- Small power supply such as Blu-ray, DVD player, set-top box, game console, smart meter, charger and auxiliary power of high power system such as LED TV, etc.
