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PCDC1008-R215EMO 数据表(PDF) 3 Page - International Rectifier |
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PCDC1008-R215EMO 数据表(HTML) 3 Page - International Rectifier |
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3 / 51 page ![]() IR3447 3 www.irf.com © 2013 International Rectifier July 17, 2013 FUNCTIONAL BLOCK DIAGRAM Comp CByp FB Smart LDO Vin LGnd DCM VCC/ LDO_out UVcc Enable UVEN CONTROL LOGIC Rt/Sync PGD OVER CURRENT DRIVER + BODY BREAKING CONTROL HDin LDin HDrv LDrv DIGITAL SOFT START SSOK UVEN Vsns OC FAULT Intl_SS FAULT Boot PVin SW PGnd OV THERMAL SHUTDOWN FAULT CONTROL TSD UVcc OC + + - E/A OVER VOLTAGE POR POR UVcc ZERO CROSSING COMPARATOR ZC POR UVcc VREF PVin POR OCset RSo RS+ RS- VCC - + 0.6V POR CLK VREF FB FB DCM VREF Figure 3: IR3447 Simplified Block Diagram |
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