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User Guide for
FEBFSB127H_T001
Evaluation Board
FSB127H 100kHz Power Switch for
ATX Standby 16W
Featured Fairchild Product:
FSB127H
Direct questions or comments
about this Evaluation Board to:
"Worldwide Direct Support"
Fairchild Semiconductor.com
© 2011 Fairchild Semiconductor Corporation
1
FEBFSB127H_T001 • Rev. 1.0.0
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Table of Contents
Related Manuals for Fairchild FSB127H
Summary of Contents for Fairchild FSB127H
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Page 1: Evaluation Board
User Guide for FEBFSB127H_T001 Evaluation Board FSB127H 100kHz Power Switch for ATX Standby 16W Featured Fairchild Product: FSB127H Direct questions or comments about this Evaluation Board to: “Worldwide Direct Support” Fairchild Semiconductor.com © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 2: Table Of Contents
EMI Conduction ......................12 Bill of Materials ........................13 Transformer ..........................14 7.1. Transformer Specification ....................14 Revision History ........................15 © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 3: Overview
This user guide supports the 16W evaluation board for ATX standby using FSB127H. It should be used in conjunction with the FSB127H datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at www.fairchildsemi.com. 1. Overview The highly integrated FSB-series consists of an integrated Current Mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET. -
Page 4: Schematic
3. Schematic Figure 2. Evaluation Board Schematic © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 5: Pcb Layout
4. PCB Layout Figure 3. Evaluation Board PCB Layout © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 6: Test Results
Load regulation: 5% maximum. 5.3.2. Test Result Input Voltage Max. Load Min. Load Load Regulation (%) 90V / 60Hz 4.971V 5.013V 0.84% 264V / 50Hz 4.988V 5.013V Line Regulation (%) 0.34% © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 7: Dc Output Rise Time
5.4.2. Measured Waveforms Figure 4. 90V / 60Hz Maximum Load Figure 5. 90V / 60Hz Minimum Load Figure 6. 264V / 50Hz Maximum Load Figure 7. 264V / 50Hz Minimum Load © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 8: Dc Transient Response
5.6.2. Measured Waveforms Figure 10. 90V / 60Hz Maximum Load Figure 11. 90V / 60Hz Minimum Load Figure 12. 264V / 50Hz Maximum Load Figure 13. 264V / 50Hz Minimum Load © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 9: Capacitive Load
5.7.1. Test Condition Output Capacitive Load = 12000μF 5.7.2. Measured Waveforms 90V / 60Hz Maximum Load 90V / 60Hz Minimum Load 264V / 50Hz Maximum Load 264V / 50Hz Minimum Load © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 10: Power Saving
= 230V, at 100% Load 20.78W 81.40% When V = 230V, at 75% Load 15.11W 82.24% When V = 230V, at 50% Load 10.15W 80.45% When V = 230V, at 25% Load 5.18W 78.62% © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 11: Short-Circuit Protection
The voltage will have decayed to 37% of its original value in one second after the AC input plug is disconnected. 5.11.2. Measured Waveforms Figure 16. 264V /50Hz, No Load, X-Cap=0.47μF, R =200kΩ © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 12: Over-Power Protection
MAXH 2 AV 2 AV MAXH MAXH EN55022Q EN55022Q EN55022A EN55022A 150 kHz 30 MHz 150 kHz 30 MHz Figure 19. L: 230 / 50Hz Figure 20. N: 230 / 50Hz © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 13: Bill Of Materials
IC FOD817A DIP FAIRCHILD FUSE CERAMIC 250V1A 3.6*10mm SLOW 37SG SLEEK Varistor 7ψ470V TVS Breakdown Voltage 143V–158V P6KE150A FAIRCHILD Test Pin SG004-05 L N VO+ VO- PCB PLM0152 REV0 FAIRCHILD FSB127HNY FAIRCHILD © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 14: Transformer
Insulation: Polyester Tape t = 0.025mm, 3 Layers Table 2. Specifications Pins Specifications Remark Primary-Side Inductance 900µH ±10% 100kHz, 1V 1－3 Primary-Side Effective Leakage < 30 H Max. Short All Other Pins 1－3 © 2011 Fairchild Semiconductor Corporation FEBFSB127H_T001 • Rev. 1.0.0... -
Page 15: Revision History
Fairchild warrantees that its products meet Fairchild’s published specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to any products described herein to improve reliability, function, or design.