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Infineon Technologies ICE2QS03G
Off-Line SMPS Quasi-Resonant PWM Controller with integrated 500V startup cell in DSO8
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 39-65 kHz |
| Output 1 | 5 V / 3 A |
| IC revision | 1.0 |
Description
15 W 5 V Adapter Reference Boardwith ICE2QS03G, IR1161, IPS65R1K5CE, BSZ100N06LS3 G and BASW21-03W
Features
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
Typical applications
- Adapter/Charger
- LCD monitor, DVD R/W, DVD Combo, Blue-ray/DVD player, Set-top box,
- Auxiliary power supply for CRT TV, LCD TV, PC, Server, Printer, TV, Home theater/Audio System, etc.