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SI4700DYQ2 Datasheet(PDF) 1 Page - Vishay Siliconix |
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SI4700DYQ2 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 8 page Si4700DY Vishay Siliconix New Product Document Number: 71110 S-00025—Rev. A, 24-Jan-00 www.vishay.com S FaxBack 408-970-5600 2-1 Power Selector Switch FEATURES APPLICATIONS D MOSFETs Configured To Give Spdt Switch With One Control Input D 2.5- to 8-V Ground Referenced Control Input D 30-mW Main Switch On-Resistance D 70-mW Alternate Switch On-Resistance D SOIC-8 Package D 3000-V ESD Protection On Control Input D Zero Power Consumption In Alternate Power Mode D ACPI Power Switching In Desktop Computers DESCRIPTION The Si4700DY consists of two MOSFETs configured for use as a single-pole, double-throw (SPDT) switch. A single ground referenced input, controls which switch is on. The Si4700DY is intended for use in applications where two power sources are available and the circuit must select one of the two depending on the conditions. An example of such a circuit is ACPI implementation in computers where part of a circuit must switch to an “always-on” power supply when the computer is in suspend mode, but runs off the main power supply for normal operation. FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION VS2 4 VG 8 VS1 3 ON/OFF 1 2 5, 6, 7 CO VD GND Q1 Q2 Q3 RG |
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