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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TFS7701-7708 데이터시트(PDF) 1 Page - Power Integrations, Inc. |
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TFS7701-7708 데이터시트(HTML) 1 Page - Power Integrations, Inc. |
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1 / 42 page  TFS7701-7708 HiperTFS-2 Family www.power.com April 2015 Combined Two-Switch Forward and Flyback Power Supply Controllers with Integrated High-Voltage MOSFETs ™ This Product is Covered by Patents and/or Pending Patent Applications. Figure 1. Schematic of Two-Switch Forward and Flyback Converter. Product Enhancements • Selectable 132 kHz main switching frequency for lower cost and smaller magnetics • Increased main peak power vs. HiperTFS-1 • Self-biased high-side driver eliminates high-side bias winding and diode • Package lead form and pinout modified for easier insertion and PC-board layout • Tighter UV (ON) standby threshold tolerance • Improved standby no-load performance Key Benefits • Single IC solution for two-switch forward main (66 kHz/132 kHz) and flyback (132 kHz) standby • High integration allows smaller form factor and higher power density designs, with reduced component count • Incorporates control, gate drivers, and three power MOSFETs • Level shift technology eliminates need for pulse transformer • Protection features include: UV, OV, OTP, OVP, standby OPC, SCP, and I LIMIT • Transformer reset control, prevents saturation under all conditions • Main duty cycle operation above 50% for reduced rms currents and lower output diode voltage rating • Less than 10% variation in standby overload power over input voltage range • Up to 586 W peak output power in a highly compact package • >90% efficiency at full load • Simple clip mounting to heat sink without need for insulation pad • Halogen free and RoHS compliant Typical Applications • PC (80 PLUS® Bronze and 80 PLUS Silver) • Printer • LCD TV • Video game consoles • High-power adapters • Industrial and appliance Output Power Table Product3 Two-Switch Forward 380 V Flyback 100 V - 400 V Continuous1 (50 °C) Peak2 Continuous (50 °C) TFS7701H 148 W 187 W 20 W TFS7702H 190 W 297 W 20 W TFS7703H 229 W 375 W 20 W TFS7704H 251 W 419 W 20 W TFS7705H 269 W 466 W 20 W TFS7706H 298 W 513 W 20 W TFS7707H 322 W 553 W 20 W TFS7708H 343 W 586 W 20 W Table 1. Output Power Table. Notes: 1. Maximum practical continuous power in an open frame design with adequate heat sinking to maintain a heat sink temperature ≤95 ºC (see Key Applications Considerations for more information) measured at specified ambient temperature. 2 Peak load less than 10 seconds and average power less than maximum continuous load. 3. Package: eSIP-16F. (Note: Direct attach to heat sink, does not require insulation SIL pad). HD DC Input (VDC) Main Output Standby Output RTN G S HiperTFS-2 VDDH L FB FB EN EN BP DSB EN FB R D HS PI-7078-082213 Two-Switch Forward Transformer Standby Flyback Transformer *Simplied feedback circuit * * * * + Figure 2. Package Option. eSIP-16F (H Package) |
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