Infineon Technologies


Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOSTM and startup cell in DSO-16/12

Topologie: Flyback
Eingangsspannung (min.): 85.00 V
Eingangsspannung (max.): 265.00 V
Schaltfrequenz (min.): 39.00 kHz
Schaltfrequenz (max.): 65.00 kHz
Ausgang 1: 5.00 V / 3.600 A

Erstveröffentlichung am 01.04.2014, Version 2.1


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 andlower 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 quasi-resonant operation till very low load, increasing the higher average system efficiency compared to other conventional solutions, achieving ultra-low power consumptionwith small and controllable output voltage ripple at standby mode with Active Burst Mode operation, etc.


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


  Artikel Nr. SPEC Produktserie L
RDC max.
RDC typ.
750341179 PDF Power Transformer
7447720222 PDF WE-TI Tonneninduktivität 2200 0.29 4730 4160 1.1