FAN6863 Fairchild Semiconductor, FAN6863 Datasheet
FAN6863
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FAN6863 Summary of contents
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... UVLO lower limit. Green Mode enables power supplies to meet international power conservation requirements. The FAN6863 is designed for SMPS and integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum line filters. The built-in synchronized slope compensation provides proprietary sawtooth compensation for constant output power limit over universal AC input range ...
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... Typical Application Block Diagram © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 Figure 1. Typical Application Figure 2. Block Diagram 2 www.fairchildsemi.com ...
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... SENSE Current Sense 5 VDD Power Supply Power supply. 6 GATE Driver Output The totem-pole output driver for driving the power MOSFET. © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 ABx: TT: Figure 3. Top Mark Figure 4. Pin Configuration Description Ground ...
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... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 Parameter Parameter 4 Min. Max. Unit ...
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... SOFT-START Threshold Voltage for SENSE Short-Circuit V SSCP Protection Detect SENSE On Time for SENSE Short- t ON-SSCP Circuit Protection Debounce Time for SENSE Short-Circuit t SSCP Protection © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 Condition Min – 0.16V DD- 20V Gate Open ...
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... FB-ZDC V - FB-ZDCR ZDC Hysteresis V FB-ZDC f Frequency Variation vs Frequency Variation vs. Temperature f DT Deviation PWM Frequency f OSC f OSC-G V FB-ZDC © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 (Continued) Condition Center Frequency V > FB-N FB-N Hopping Range FB-G FB ...
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... Restart Notes: 1. When activated, the output is disabled and the latch is turned off. 2. The threshold temperature for enabling the output again and resetting the latch after OTP has been activated. © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 (Continued) Condition V = 15V 50mA DD ...
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... Typical Performance Characteristics Figure 6. Turn-On Threshold Voltage (V vs. Temperature Figure 8. Operating Current (I Figure 10. Center Frequency (f © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 ) Figure 7. Turn-Off Threshold Voltage (V DD-ON ) vs. Temperature Figure 9. V DD-OP ) vs. Temperature Figure 11. FB Threshold Voltage for Frequency OSC 8 DD-OFF vs. Temperature ...
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... OSC-G Figure 14. Open-Loop Protection Delay (t vs. Temperature Figure 16. Valley Threshold Voltage for Current Limit (V ) vs. Temperature STHVA © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 (Continued vs. Temperature Figure 13. Threshold Voltage for Open-Loop FB-G ) Figure 15. Flat Threshold Voltage for Current Limit D-OLP Figure 17 ...
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... Typical Performance Characteristics Figure 18. Maximum Duty Cycle (DCY vs. Temperature Figure 20. Leading-Edge Blanking Time (t vs. Temperature Figure 22. Falling Time (t © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 (Continued) ) Figure 19. Threshold Voltage for SENSE Short-Circuit MAX ) Figure 21. Rising Time (t LEB ) vs. Temperature Figure 23. Internal Resistor from RT Pin (R ...
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... FB PWM frequency starts to linearly decrease from 65kHz to 22.5kHz to reduce the switching losses decreases below V (2.2V), the switching frequency FB-G is fixed at 22.5kHz and FAN6863 enters “deep” Green Mode, where the operating current decreases to 600µA (maximum), further reducing consumption decreases below V FB FAN6863 enters Burst-Mode operation ...
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... DD AC power line. Over-Current Protection (OCP) FAN6863 has two over-current protection thresholds. One is for pulse-by-pulse current limit, which turns off MOSFET for the remainder of the switching cycle when the sensing voltage of MOSFET drain current reaches the threshold ...
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... Soft-start time: 5ms 230V 50Hz (89.92% Avg.) AC 115V 60Hz (88.75% Avg.) AC 85.29% (Energy Star V2.0) © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.0 Fairchild Devices Input Voltage Range FAN6863 Figure 30. Measured Efficiency and Power Saving Figure 31. Schematic of Typical Application Circuit 13 Output 90~265V 19V/2.1A (40W) AC www ...
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... Fly- Fly Primary-Side Inductance Primary-Side Effective Leakage © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 Figure 32. Transformer Wire Ts 0.25 • 0.25 • COPPER SHIELD 1.2 0.5 • COPPER SHIELD 1.2 0.25 • CORE ROUNDING TAPE Pin Specification 3－ ...
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... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2011 Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 15 www.fairchildsemi.com ...
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... Fairchild Semiconductor Corporation FAN6863 • Rev. 1.0.1 16 www.fairchildsemi.com ...