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LV8127T Datasheet(PDF) 9 Page - ON Semiconductor |
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LV8127T Datasheet(HTML) 9 Page - ON Semiconductor |
9 / 23 page LV8127T http://www.onsemi.com 9 Continued from preceding page. Pin No. Pin name Function Equivalent circuit 8 RFGND Current sensing Kelvin reference pin. This pin is connected to the GND side of the current sense resistor. This pin should be routed with RF to eliminate voltage drops in the sensing circuit due to PCB trace resistance. A dedicated trace should be used between this pin and the high side of the sense resistor. 8 5k V5 VCC 9 RF Current Sensing Kelvin input pin. This pin is connected to the external current sense resistor and should be routed closely with RFGND to eliminate voltage drops in the sensing circuit due to PCB trace resistance. A dedicated trace should be used between this pin and the high side of the sense resistor. 9 5k V5 VCC 10 11 12 VL UL WL . Low side FET drive pins for the three phases. Duty cycle driven. VCC 10 11 12 13 16 19 WFG VFG UFG Motor phase voltage monitor pins. Used by the IC to determine the state of each switch node. 14 17 20 15 18 21 13 16 19 14 17 20 WOUT VOUT UOUT High side FET drive pins for the three phases. 15 18 21 WH VH UH Drive boost pins for the three phases. Used as the high side gate voltage source. Attached to a simple diode-capacitor boost circuit. 25 GND2 Ground pin Ground pin Continued on next page. |
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