전자부품 데이터시트 검색엔진 |
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FAN5776UCX 데이터시트(PDF) 9 Page - Fairchild Semiconductor |
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FAN5776UCX 데이터시트(HTML) 9 Page - Fairchild Semiconductor |
9 / 15 page © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5776 • Rev. 1.1.0 9 Typical Characteristics VIN = 3.7 V, TA = 25°C, ILED = 5 x 20 mA, VOUT = 6.8 V, L1 = 4.7 µH, COUT = 10 µF (unless otherwise specified). ILED CH1...CH5 10 mA/div VOUT 1 V/div ISW 200 mA/div VSW 2 V/div Time Base 400 ns/div ILED CH1...CH3 100 mA/div VOUT 1 V/div VIN 1 V/div EN13 1 V/div Time Base 10 ms/div Figure 16. Switch Waveform (VOUT, VSW, ISW) Figure 17. Startup After Enable, Three Strings Connected ILED CH1...CH4 100 mA/div VOUT 1 V/div VIN 1 V/div EN13=EN45 1 V/div Time Base 20 ms/div ILED CH1...CH5 100 mA/div VOUT 1 V/div VIN 1 V/div EN13=EN45 1 V/div Time Base 10 ms/div Figure 18. Startup After Enable, Four Strings Connected Figure 19. Startup After Enable, Five Strings Connected ILED CH1...CH5 100 mA/div VOUT 1 V/div VIN 1 V/div EN15 1 V/div Time Base 2 ms/div ILED CH1...CH5 100 mA/div VOUT 1 V/div EN13 1 V/div Time Base 20 ms/div EN45 1 V/div Figure 20. LED PWM Startup, Five Strings Connected Figure 21. Startup After LED1-3 Enable Followed by LED4-5 Enable |
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