FAN302UL Fairchild Semiconductor, FAN302UL Datasheet
FAN302UL
Related parts for FAN302UL
FAN302UL Summary of contents
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... Over-Voltage Protection (OVP), brownout protection, and Over-Temperature Protection (OTP). Compared with a conventional approach using external control circuit in the secondary side for CC regulation; the FAN302UL reduces total cost, component count, size, and weight, while simultaneously increasing efficiency, productivity, and system reliability Figure 1 ...
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... Application Diagram Internal Block Diagram © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 Figure 2. Typical Application Figure 3. Functional Block Diagram 2 www.fairchildsemi.com ...
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... NC No Connect 8 HV High Voltage. This pin connects to the DC bus for high-voltage startup. © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 F- Fairchild Logo Z: Assembly Plant Code X: Year Code Y: Week Code TT: Die Run Code T: M=SOP P: Y= Green Package M: Manufacture Flow Code Figure 4 ...
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... All voltage values, except differential voltages, are given with respect to the GND pin. 2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. 3. EDS ratings including the HV pin: HBM=500V, CDM=750V. © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 Parameter (1,2) =25C) A Human Body Model, ...
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... FB Threshold to Disable Gate Drive in Burst Mode Threshold to Enable Gate Drive in Burst Mode FB H Over-Temperature Protection Section Threshold Temperature for Over-Temperature T (6) OTP Protection © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 V =100V Controller Off V =500V (Controller On with Auxiliary Supply ...
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... CCM operation. OSC-CM-MIN scale-down ratio of the internal voltage divider of the FB pin Not tested; guaranteed by design. © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 (Continued) V =5V CS (6) V =5V =5V ...
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... Turn-On Threshold Voltage (V DD vs. Temperature Figure 8. Operating Current (I Figure 10. CC Regulation Minimum Frequency (f ) vs. Temperature OSC-CCM © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 ) Figure 7. V DD-ON ) vs. Temperature Figure 9. Burst Mode Operating Current (I DD-OP Figure 11. Enter Zero Duty Cycle of FB Voltage (V 7 Turn-Off Threshold Voltage (V ...
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... Typical Performance Characteristics Figure 12. Leave Zero Duty Cycle of FB Voltage (V ) vs. Temperature FB-H Figure 14. Reference Voltage vs. Temperature Figure 16. Starting Voltage of Frequency Decreasing of CC Regulation (V SN-CC © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 2.95 2.90 2.85 2.80 2.75 2.70 2.65 -40 Figure 13 Figure 15. Variation Voltage on CS Pin for CC VR Figure 17 ...
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... Typical Performance Characteristics Figure 18. Threshold Voltage for Current Limit (V vs. Temperature Figure 20. Minimum On Time (t Figure 22. Maximum Duty Cycle (DCY vs. Temperature © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 ) Figure 19. Threshold Voltage for Current Limit at STH Power Mode (V ) vs. Temperature Figure 21.Leading-Edge Blanking Time (t ...
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... EA.I shown in Figure 25. During CV regulation, V determines the duty cycle while V HIGH. During CC regulation mode, V duty cycle while V is saturated to HIGH. EA.V Figure 24. Internal PWM Control Circuit © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 V SAW Gate PWM.V signal. Then, EA.V PWM.I OSC CLK ) CCR Figure 25 ...
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... To prevent this CCM operation and maintain good output current estimation in DCM, FAN302UL decreases switching frequency as output voltage drops, as shown in Figure 28 and Figure 29. FAN302UL indirectly monitors the output voltage by the sample-and-hold voltage ( which is taken at 85% of diode current discharge ...
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... Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 High-Voltage (HV) Startup Figure 33 shows the high-voltage startup circuit for FAN302UL applications. Internally a JFET is used to implement the high-voltage current source, whose characteristics are shown in Figure 34. Technically, the HV pin can be directly connected to the DC link (V However, to improve reliability and surge immunity the ZCD is not typical to use about 100kΩ ...
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... Burst Mode alternately enables and disables switching of the MOSFET, reducing the switching losses in Standby Mode. Once FAN302UL enters Burst Mode, the operating current is reduced from 3.5mA to 200μA to minimize power consumption in Burst Mode. © 2011 Fairchild Semiconductor Corporation FAN302UL • ...
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... Minimum On Time Modulation Brownout Protection FAN302UL modulates the minimum ON time of the MOSFET such that it reduces as input voltage increases, as shown Figure 40. This allows smaller minimum ON time for high-line condition, ensuring Burst Mode operation occurs at almost the same power level, regardless of line voltage variation. The minimum ON time is also related to the bundle frequency of Burst Mode operation ...
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... FAN302UL has two test mode, depending on the voltage level at the CS pin and the VS pin. When the voltage the at the CS pin is greater than 3.5V, FAN302UL enters Test Mode 1. Test Mode 1 disables OCP, OTP, and frequency-hopping functions. This test mode is used to measure the V through the FB pin, I ...
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... Output Regulation: CV:±5%, CC:±15% 80.0 90Vac 78.0 76.0 74.0 72.0 70.0 68.0 66 Load Figure 42.Measured Efficiency and Output Regulation © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 Input Voltage Range FAN302UL 90~265V (Pin=6.3mW for 115V AC 115Vac 230Vac 264Vac 75 100 Figure 43.Schematic of Typical Application Circuit 16 Output 5V/1.2A (6W) AC and Pin=7 ...
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... Transformer Winding Specifications Table 1. Terminal No. Start Pin Fly+ Primary-Side Inductance Primary-Side Effective Leakage Inductance © 2011 Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 (Continued) Figure 44.Transformer Wire End Pin 2 2UEW 0.15*2 5 2UEW 0.12*1 Fly- TEX-E 0.4*1 Pin Specifications 4-5 530H ±7% 4- ...
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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 FAN302UL • Rev. 1.0.2 5.00 4.80 A 3.81 ...
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... Fairchild Semiconductor Corporation FAN302UL • Rev. 1.0.2 19 www.fairchildsemi.com ...