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Infineon Technologies

ICE2QS03G

Off-Line SMPS Quasi-Resonant PWM Controller with integrated 500V startup cell in DSO8

Topologie: Flyback
Eingangsspannung (min.): 85.00 V
Eingangsspannung (max.): 265.00 V
Ausgang 1: 5.00 V / 3.000 A

Erstveröffentlichung am 25.11.2014, Version 1.1

Beschreibung

ICE2QS03G is a quasi-resonant PWM controller optimized for off-line switch power supply. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load. As a result, the overall system efficiency is significantly improved compared to other conventional solutions. The active burst mode operation enables ultra-low power consumption at standby mode with small and controllable outputvoltage ripple. Based on the BiCMOS technology, the product has a wide operation range (up to 25V) of IC power supply and lower power consumption. The numerous protection functions give a full protection of the power supply system in failure situations. All of these make the ICE2QS03G an outstanding controller for quasiresonant flyback converter in the market.

Merkmale

  • Quasi resonant operation till very low load
  • Active burst mode operation at light/no load for low standby input power (< 100mW)
  • Digital frequency reduction with decreasing load
  • Startup cell for VCC pre-charging with constant current
  • Built-in digital soft-start
  • Foldback correction and cycle-by-cycle peak current limitation
  • Auto restart mode for VCC Over-voltage protection, VCC Under-voltage protection and open loop/over-loadprotection
  • Latch-off mode for adjustable output over-voltage protection and short-winding protection

Artikel

  Artikel Nr. SPEC Produktserie L
(µH)
IR
(A)
RDC max.
(Ω)
RDC typ.
(Ω)
fres
(MHz)
Muster
7447462101 PDF WE-TI Tonneninduktivität 100 0.8 0.65 0.457 7.1

Weitere Anwendungen und Artikel von Würth Elektronik zu diesem IC

  • ICE2QS03G
    Topologie: Flyback, Eingangsspannung (min.): 90.00 V, Eingangsspannung (max.): 264.00 V, Ausgang 1: 19.00 V / 1.840 A
  • ICE2QS03G
    Topologie: Forward, Eingangsspannung (min.): 85.00 V, Eingangsspannung (max.): 265.00 V, Ausgang 1: 5.00 V / 3.000 A
  • ICE2QS03G
    Topologie: Forward, Eingangsspannung (min.): 90.00 V, Eingangsspannung (max.): 264.00 V, Ausgang 1: 5.00 V / 2.100 A
  • ICE2QS03G
    Topologie: Other