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AS1345 数据表(PDF) 21 Page - ams AG |
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AS1345 数据表(HTML) 21 Page - ams AG |
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21 / 29 page  ams Datasheet, Confidential: 2013-Nov [1-51] AS1345 – 21 Detaile d Desc rip t ion Schottky Diode Selection The selection of the external diode depends on the application. If IOUT is very low most of the time, and VOUT is high, select a diode with a low reverse current for best efficiency. For lower VOUT and higher IOUT, select a diode with a lower VFORWARD and RFORWARD. Figure 24: Recommended Diodes Part Number Reverse Voltage Average Rectified Current Forward Voltage Reverse Leakage Current Package Supplier MBR0540 40V 500mA 460mV @ 500mA 1μA @ 20V SOD123 Fairchild Semiconductor www.fairchildsemi.com B140HW 40V 1000mA 460mV @ 500mA 0.35μA @ 20V SOD123 Diodes Inc www.diodes.com PMEG2010AEB 20V 1A 200mV @ 500mA 320μA @ 20V SOD523 NXP Semiconductors www.nxp.com CRS04 40V 1A 450mV @ 500mA 40μA @ 20V 3-2A1A (Toshiba) Toshiba www.toshiba-compone nts.com CRS06 20V 1A 325mV @ 500mA 250μA @ 20V 3-2A1A (Toshiba) |
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