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ICE3AS02 Datasheet(PDF) 3 Page - Infineon Technologies AG |
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ICE3AS02 Datasheet(HTML) 3 Page - Infineon Technologies AG |
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3 / 23 page  Type Ordering Code F OSC Package ICE3AS02 Q67040-S4661-A101 100kHz PG-DIP-8-6 ICE3BS02 Q67040-S4637-A101 67kHz PG-DIP-8-6 ICE3AS02G 100kHz P-DSO-8-8 ICE3BS02G 67kHz P-DSO-8-8 Version 1.1 3 21 May 2004 F3 ICE3AS02 / ICE3BS02 ICE3AS02G / ICE3BS02G Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell PDSO83 6 test PG-DIP-8-6 P-DSO-8-8 Product Highlights • Leadfree DIP package • 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 Features • Active Burst Mode for lowest Standby Power @ light load controlled by Feedback Signal • Fast load jump response in Active Burst Mode • 500V Startup Cell switched off after Start Up • 100/67kHz internally fixed switching frequency • Auto Restart Mode for Overtemperature Detection • Auto Restart Mode for VCC 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 Description The F3 Controller 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 Mode or Active Burst Mode unintentionally in case of high load jumps. C SoftS C VCC C Bulk Converter DC Output + ICE3AS02/G ICE3BS02/G Snubber Power Management PWM Controller Current Mode 85 ... 270 VAC Typical Application R Sense Gate CS Startup Cell HV Precise Low Tolerance Peak Current Limitation SoftS FB GND VCC Control Unit - Active Burst Mode Auto Restart Mode |
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