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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC4501 датащи(PDF) 18 Page - Semtech Corporation |
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SC4501 датащи(HTML) 18 Page - Semtech Corporation |
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18 / 21 page  18 © 2005 Semtech Corp. www.semtech.com POWER MANAGEMENT SC4501 Typical Application Circuits Figure 13(c). TFT Power Supply Start-up Transient as the SHDN Pin is stepped from 0 to 2V. 2ms/div CH2 CH1 CH3 CH4 CH1 : OUT1 Voltage, 5V/div CH2 : OUT2 Voltage, 10V/div CH3 : OUT3 Voltage, 5V/div CH4 : SHDN Voltage, 2V/div 3.3V C1 2.2 µF 23V (10mA) OUT1 SC4501 2 3 1 5 6 4 GND SHDN SS IN SW FB ROSC COMP 8 7 C3 C4 R3 R4 10BQ015 D1 10 µF 47nF 820pF 40.2K R2 R1 C2 49.9K 274K 8V (0.55A) 7.68K C9 0.1 µF L1 2.2 µH D6 D7 C10 1 µF D2 0.1 µF C5 D3 0.1 µF C6 D4 0.1 µF C7 D5 1 µF C8 OUT2 OUT3 -8V (10mA) R6 R5 100K 150K Figure 13(a). 1.5MHz Triple-Output TFT Power Supply. D2 - D7 : BAT54S L1 : Cooper-Bussmann SD25-2R2 CH1 : OUT1 Voltage, 5V/div CH4 : Input Voltage, 2V/div 4ms/div CH2 : OUT2 Voltage, 10V/div CH3 : OUT3 Voltage, 5V/div CH2 CH1 CH3 CH4 Figure 13(b). TFT Power Supply V IN Start-up Transient. |
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