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| ICE3A0365 |
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 INFINEON
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Version 1.3 3 15 Sep 2004 CoolSET™-F3 Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/ CoolMOS™ Product Highlights • Best in class in DIP7, DIP8, TO220, I2Pak packages • Leadfree for DIP7 and DIP8 packages • Active Burst Mode to reach the lowest Standby Power Requirements < 100mW • Protection features (Auto Restart Mode) to increase robustness and safety of the system • Adjustable Blanking Window for high load jumps to increase system reliability • Isolated drain package for TO220/I2PAK • Increased creepage distance for TO220/I2PAK • Wide power class of products for various applications Features • 650V avalanche rugged CoolMOS™ with built in switchable Startup Cell • Active Burst Mode for lowest Standby Power @ light load controlled by Feedback signal • Fast load jump response in Active Burst Mode • 67/100 kHz fixed switching frequency • Auto Restart Mode for Overtemperature Detection • Auto Restart Mode for Overvoltage Detection • Auto Restart Mode for Overload and Open Loop • Auto Restart Mode for VCC Undervoltage • Blanking Window for short duration high current • User defined Soft Start • Minimum of external components required • Max Duty Cycle 72% • Overall tolerance of Current Limiting < ±5% • Internal PWM Leading Edge Blanking • Soft switching for low EMI P-DIP-7-1 P-DIP-8-4, -6 P-TO220-6-46 P-TO220-6-47 P-TO220-6-46 P-TO220-6-47 PG-DIP-7-1 PG-DIP-8-6 Description The new generation CoolSET™-F3 provides Active Burst Mode to reach the lowest Standby Power Requirements <100mW at no load. As the controller is always active during Active Burst Mode, there is an immediate response on load jumps without any black out in the SMPS. In Active Burst Mode the ripple of the output voltage can be reduced <1%. Furthermore, to increase the robustness and safety of the system, the device enters into Auto Restart Mode in the cases of Overtemperature, VCC Overvoltage, Output Open Loop or Overload and VCC Undervoltage. By means of the internal precise peak current limitation, the dimension of the transformer and the secondary diode can be lowered which leads to more cost efficiency. An adjustable blanking window prevents the IC from entering Auto Restart or Active Burst Mode unintentionally during high load jumps. The CoolSET™-F3 family consists a wide power class range of products for various applications. C SoftS C VCC C Bulk Converter DC Output + Snubber Power Management PWM Controller Current Mode 85 ... 270 VAC Typical Application R Sense SoftS FB GND Active Burst Mode Auto Restart Mode Control Unit - CS VCC Startup Cell Drain CoolSET™-F3 Depl-CoolMOS™ Precise Low Tolerance Peak Current Limitation |
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