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FAN5233 データシート(PDF) 3 Page - Fairchild Semiconductor |
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FAN5233 データシート(HTML) 3 Page - Fairchild Semiconductor |
3 / 15 page PRODUCT SPECIFICATION FAN5233 REV. 1.0.6 1/22/02 3 LSD3.3 7 Low-side gate driver for 3.3V. Connect this pin directly to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be < 1". GND3.3 8 Ground for 3.3V MOSFET. ISEN3.3 9 Current sense for 3.3V. This pin should be connected to the Drain of the bottom Mosfet with an appropriate resistor and an RC filter. See Application Section. VFB3.3 10 Voltage feedback for 3.3V. SDN3.3 11 Soft Start and ON/OFF for 3.3V. OFF=GND. ON=open with SDWN=High. Use open collector device for control. PGOOD 12 Power Good Flag. An open collector output that will be logic low if any output voltage is not above 89% of the nominal output voltage. SDWN 13 Master Shutdown. Shutdown for all power. Off when low. When high 5V/3.3V-ALWAYS are ON while 5V/3.3V-Main are ready to turn on if SDN5, SDN3.3 go open. SGND 14 Signal ground. VFB12 15 Voltage feedback for 12V. SW12 16 FET driver for 12V Boost. SDN5 17 Enable/Soft Start for 5V and 12V. Soft start and ON/OFF for 5V & 12V. OFF=Grounded. ON=open with SDWN=High. VFB5 18 Voltage feedback for 5V. GND5 19 Ground for 5V MOSFET. LSD5 20 Low side FET driver for 5V. Connect this pin directly to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be < 1". ISEN5 21 Current Sense for 5V. This pin should be connected to the drain of the bottom Mosfet using appropriate resistor and RC filter. See Application Section. SW5 22 High Side Driver Source and Low Side Driver Drain Switching Node. Switching node for 5V. HSD5 23 High side FET driver for 5V. Connect this pin directly to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be < 1". CPUMP5 24 Charge Pump 5V. High side Gate drive voltage for 5V. High side Gate drive voltage for 5V. This pin is to be connected to SW5 through a 100nF cap. and to 5V-ALWAYS through a diode. Pin Description (Continued) Pin Name Pin Number Pin Function Description |
同様の部品番号 - FAN5233 |
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同様の説明 - FAN5233 |
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