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Fairchild Power Switch

Fairchild Power Switch. Sep, 2004 Power Conversion. GFPS for High Power Applications. Power Range : 100 ~ 300Watt System Configuration Qusi-Resonant with multi-output for CTV Sync Frequency with multi output for CRT Monitor Forward or Half bridge with multi output for PC

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Fairchild Power Switch

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  1. Fairchild Power Switch Sep, 2004 Power Conversion

  2. GFPS for High Power Applications • Power Range : 100 ~ 300Watt • System Configuration • Qusi-Resonant with multi-output for CTV • Sync Frequency with multi output for CRT Monitor • Forward or Half bridge with multi output for PC • Multi power stage for PDP/ LCD TV • Development Direction • Low Stand by requirement • CTV/Monitor - under 1.0Watt • PC SMPS - under 1.0Watt @ Po=0.5Watt • High Efficiency requirement • 300Watt * 90% efficiency  30watt power loss • Need to reduce switching loss(soft switching) 3Chip 1Pkg for resonant solution • FSC Solution • QRC Applications : FSCQ-Series • Silver Box/LCD TV : FSD1000 Display & Computing - CRT Monitor - CRT TV - Projection TV - LCD TV / PDP - Silver Box - NoteBook Adaptor

  3. Selection Guide for C-TV ** Under Development Green FPS provide under1watt stand by power consumption

  4. Compact and cost effective design with FPS FPS includes SenseFET PWM controller Optimized Gate drive circuit Additional function - Quasi-resonant switching - Soft start - Burst operation Protection function - Over load protection - Over voltage protection - Over current protection - Pulse by Pulse current limit - Over temperature protection

  5. Features and Advantages of FSCQ-series • Features • - Optimized for Quasi-resonant converter (Low EMI and High Efficiency) • - Fully avalanche rated and 100% tested SenseFET • - Pulse-by-pulse current limiting • - Improved reliability through various protection functions • : Over voltage, Over load, Over current, Thermal shutdown • - Advanced Burst operationfor low power consumption in standby (<1W) • - Internal Soft start function (20ms) • - Extended Quasi-resonantoperation for wide operation range • - Reduced startup and operating currents • Advantages • - Reduced board space (simple & compact circuit design) • - Decreased assembly time and field failure rate Enhanced productivity

  6. FSCQ-series Functional Block Diagram QRC Control Burst Mode Operation SenseFET OLP Current Mode Control AOCP TSD OVP Auto Restart Mode Latch Mode

  7. Burst operation - Output drop circuit • Normal mode : Vo1 (B+) is regulated • Standby mode : Vo2 is regulated

  8. Power Consumptions in standby mode Minimum voltage of linear regulator = 8.0V B+ output : open

  9. Pin Compatible : TO-220F-5L & TO-3PF-7L Same pin layout 1.5mm 1.5mm 1.5mm S F/B S F/B NC 3.18mm 3.18mm D Vcc Sync D Vcc Sync NC 2.54mm 1.5mm 2.54mm 1.5mm 2.54mm 1.5mm 1.5mm TO-3PF-7L TO-220F-5L

  10. FPS Comparison for Color TV

  11. PDP Power Supply - System Block Diagram Address Driver Y Sustain Block X Sustain Block Clock DATA MCU & Logic PANEL V Sync H Sync Next page for more detail Power Supply ・ FPSTM ・ PFC/PWM Energy Recovery Block Energy Recovery Block

  12. PDP Power Supply - Block Diagram A +190V (+85V) ML4824(Combo) +180V / 240W B C 400V EMI FILTER PFC VSUSTAIN VSET KA5L0380R +100V / 20W Flyback D Two switch Forward Boost 420W VERASE KA5L0380R +110V / 20W Flyback VSCAN KA5L0380R +90V / 30W E Flyback Stand by KA5L0380R +5V / 3.5W F Flyback VADDRESS FS7M0880 +70V / 150W Flyback +3.3V, +6V +12V, +15V, +33V VMULTI FS7M0880 Flyback / 80W VAUDIO AMP FS7M0880 +18V / 40W Flyback • Fly back, Forward and half bridge topology (400W~600W) • Low standby power, under 1W required • Active PFC required (Combo or PFC only) • Focus device

  13. Power Solution for PDP ML4824(Combo)+FET 380~ 400V EMI FILTER PFC ML4821 VSUSTAIN KA7500C+FET 200W +180V 120W +60V VADDRESS FS7M0880 70~90W +3.3V +5V +12V +15V others Logic Board Image Board Sound Board VMULTI FS7M0680 3W +5V Stand by KA5M0280R

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