FAN400A Fairchild Semiconductor, FAN400A Datasheet
FAN400A
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FAN400A Summary of contents
Page 1
... DD compensation, to regulate the output voltage without requiring a conventional TL431 and a photo-coupler. Another advantage of the FAN400A is that the typical startup current is only 8μA, while the typical operating current can be as low as 3.6mA. A large startup resistance can be used to achieve even higher power conversion efficiency ...
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... Application Diagram Internal Block Diagram © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0 ATE Figure 1. Typical Application Figure 2. Functional Block Diagram www.fairchildsemi.com ...
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... SENSE GND © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 XXX: AAT=FAN400A TT : Die run code . . . : Year code - - - : Week code 1’st line Z: Assembly plant code X: Year code Y: Week code TT: Die run code 3’rd line T: N=DIP P: Y=Green package M: Manufacture flow code Figure 3 ...
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... Notes: 1. All voltage values, except differential voltages, are given with respect to GND pin. 2. Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 Parameter (1, 2) SSOT DIP Human Body Model ...
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... Feedback Threshold Voltage DD-FB DD Current-Sense Section t Propagation Delay PD V Current Limit Valley Threshold Voltage STHVA V Current Limit Flat Threshold Voltage STHFL t Leading-Edge Blanking Time LEB © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 =25°C. A Conditions With Secondary Feedback Without Secondary Feedback V =V – 0.1V DD DD-ON C =1nF ...
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... V GATE- GATE Output Clamping Voltage CLAMP Over Temperature Protection (OTP) T Protection Junction Temperature OTP T OTP- Restart Junction Temperature RESTART © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 (Continued) =25°C. A Conditions Center Frequency Hopping Range Deviation V =10 to 22V =-20 to 85°C ...
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... T emperature (℃ ) Figure 8. Startup Current (I vs. Temperature -40 -25 - emperature (℃ ) Figure 10. Center Frequency (f vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 8.6 8.4 8.2 7.8 7 110 125 ) Figure 7. DD-ON 3.8 3.6 3.4 3 110 125 ) Figure 9. ...
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... T emperature (℃ ) Figure 12. Green-Mode Entry FB Voltage (V ) vs. Temperature FB-N 300 280 260 240 220 200 -40 -25 - Temperature (℃ ) Figure 14. Leading-Edge Blanking Time (t vs. Temperature © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 2.2 1.8 1.6 1.4 1 110 125 Figure 13. 4.5 3.5 2 110 125 ) Figure 15 ...
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... AC input voltages (90V Under Voltage Lockout (UVLO) The turn-on/turn-off thresholds are fixed internally at 17V and 8V. To enable the FAN400A during startup, the hold-up capacitor must first be charged to 17V through once the junction the startup resistor ...
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... Furthermore, it helps alleviate this problem. Good placement and layout practices should be followed. The designer should avoid long PCB traces and component leads. Compensation and filter components should be located near the FAN400A. Finally, increasing the power-MOS gate resistance is advised. (1) 10 mode. Slope compensation www ...
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... R 1Ω/0.5W L1 Inductor 20mH 6*8mm L2 Inductor 10μH 6mm Q1 MOSFET 1A/600V R1,R2 R 750kΩ/1206 R3,R4 R 47kΩ/1206 R5 R 47Ω/1206 R6 R 4.7Ω/0. 100Ω/0805 R8 R 10Ω/1206 R10 (Option) R 10Ω/1206 T1 Transformer EE- FAN400A (Green PWM IC) 11 Component www.fairchildsemi.com ...
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... Inductor 10μH 6mm MOSFET 1A/600V R 750kΩ/1206 R 47kΩ/1206 R 47Ω/1206 R 4.7Ω/0.5W R 100Ω/0805 R 10Ω/1206 R 10Ω/1206 R 100Ω/ 1/8W R 33kΩ/0805 R 33kΩ/ 1/8W R 4.7kΩ/0805 Transformer EE-16 IC FAN400A (Green PWM IC) IC PC817 IC TL431 www.fairchildsemi.com ...
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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/. © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 9.83 9.00 6.67 6.096 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/. © 2008 Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 Figure 19. 6-Pin SSOT-6 Package 14 www.fairchildsemi.com ...
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... Fairchild Semiconductor Corporation FAN400A Rev. 1.0.2 15 www.fairchildsemi.com ...