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The CoolSET-Q1 series (ICE2QRxx65) is the first generation 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.

| Manufacturer | Infineon |
| Product Category | AC DC Converters, Offline Switchers |
| Series | CoolMOS™, CoolSET™-Q1 |
| Packaging | Alternate Packaging |
| Package-Case | 16-SOIC (0.154", 3.90mm Width) 12 leads |
| Operating-Temperature | -40°C ~ 150°C (TJ) |
| Mounting-Type | Surface Mount |
| Supplier-Device-Package | PG-DSO-16/12 |
| Watt | 79W |
| Output-Isolation | Isolated |
| Internal-Switch-s | Yes |
| Voltage-Breakdown | 650V |
| Topology | Flyback |
| Voltage-Start-Up | 18V |
| Voltage-Supply-Vcc-Vdd | 10.5 V ~ 27 V |
| Duty-Cycle | 50% |
| Frequency-Switching | 52kHz |
| Fault-Protection | Current Limiting, Over Load, Over Temperature, Over Voltage |
| Control-Features | - |