Infineon Technologies ICE2QR4765G
Off-Line SMPS Quasi-Resonant PWM Controller
FEATURES
● 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 (< 0.05W)
● 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 time limitation
● Auto restart mode for VCC over-voltage protection, under-voltage protection, over-load protection and over- temperature protection
● Latch-off mode for adjustable output over-voltage protection and transformer short-winding protection
DESCRIPTION
The CoolSET®-Q1 series (ICE2QRxx65G) 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 CoolSET®-Q1 series has a wide operation range (up to 25V) of IC power supply and lower power consumption.