Datenblatt-Suchmaschine für elektronische Bauteile |
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FAN5092MTC Datenblatt(PDF) 2 Page - Fairchild Semiconductor |
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FAN5092MTC Datenblatt(HTML) 2 Page - Fairchild Semiconductor |
2 / 20 page FAN5092 PRODUCT SPECIFICATION 2 REV. 1.0.7 6/20/02 Pin Assignments Pin Definitions Pin Number Pin Name Pin Function Description 1-5 VID0-4 Voltage Identification Code Inputs. These open collector/TTL compatible inputs will program the output voltage over the ranges specified in Table 1. 6 CLK Clock. When PHASE is high, this pin puts out a clock signal synchronized 180 ° out of phase with the internal master clock. When PHASE is low, this pin is an input for a synchronizing clock signal. 7 BYPASS 5V Rail. Bypass this pin with a 0.1 µF ceramic capacitor to AGND. 8 AGND Analog Ground. Return path for low power analog circuitry. This pin should be connected to a low impedance system ground plane to minimize ground loops. 9 LDRVB Low Side FET Driver for B. Connect this pin to the gate of an N-channel MOSFET for synchronous operation. The trace from this pin to the MOSFET gate should be <0.5”. 10 GNDB Ground B. Ground-side current sense pin. Connect directly to low-side MOSFET source, or to sense resistor ground. 11 ISNSB Current Sense B. Sensor side of current sense. Attach to low-side MOSFET drain, or to source side of sense resistor. 12 SWB High side driver source and low side driver drain switching node B. Gate drive return for high side MOSFET, and negative input for low-side MOSFET current sense. 13 HDRVB High Side FET Driver B. Connect this pin to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be <0.5”. 14 BOOTB Bootstrap B. Input supply for high-side MOSFET. 15 BOOTA Bootstrap A. Input supply for high-side MOSFET. 16 HDRVA High Side FET Driver A. Connect this pin to the gate of an N-channel MOSFET. The trace from this pin to the MOSFET gate should be <0.5”. 17 SWA High side driver source and low side driver drain switching node A. Gate drive return for high side MOSFET, and negative input for low-side MOSFET current sense. 18 ISNSA Current Sense A. Sensor side of current sense. Attach to low-side MOSFET drain, or to source side of sense resistor. FAN5092 VID0 VID1 VID2 VID3 VID4 BYPASS AGND CLK LDRVB GNDB ISNSB SWB VFB RT ENABLE/SS DROOP/E* ISHR PHASE PWRGD VCC LDRVA GNDA ISNSA SWA 1 2 3 4 5 6 7 8 9 10 11 12 HDRVB BOOTB HDRVA BOOTA 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 |
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