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L9945 データシート(PDF) 10 Page - STMicroelectronics |
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L9945 データシート(HTML) 10 Page - STMicroelectronics |
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10 / 144 page  3.2 Pin names and functions The table below lists all the information about device pins. Note: The package exposed pad must be soldered on the PCB and connected to ground. Pins GNDIO and GNDCP must be shorted and ground connected. Syntax: P = Power, G = Ground, D = Digital, A = Analog, I = Input, O = Output, NA = Not Available, L = Low, H = High, PU = Pull Up, PD = Pull Down. Table 1. Pin list Pin # Pin Name Pin type PU/PD Active State HBM ESD (1) Description Power Supply And Ground 42 VPS P NA NA NA 4 kV Battery Input, used to supply charge pump 36 GND G NA NA NA 2 kV Ground 35 VDD5 P NA NA NA 2 kV 5 V Input (usually output of external regulator) Digital inputs (connected to external microcontroller) 1 NON1 D I PU L 2 kV Output 1 ON-OFF signal NPWM signal for H-Bridge 1 2 NON2 D I PU L 2 kV Output 2 ON-OFF signal DIR signal for H-Bridge 1 3 NON3 D I PU L 2 kV Output 3 ON-OFF signal HIZ signal for H-Bridge 1 4 NON4 D I PU L 2 kV Output 4 ON-OFF signal 5 NON5 D I PU L 2 kV Output 5 ON-OFF signal NPWM signal for H-Bridge 2 6 NON6 D I PU L 2 kV Output 6 ON-OFF signal DIR signal for H-Bridge 2 7 NON7 D I PU L 2 kV Output 7 ON-OFF signal HIZ signal for H-Bridge 2 8 NON8 D I PU L 2 kV Output 8 ON-OFF signal Output pre-driver 64 DRN1 A I NA NA 4 kV FET drain on channel 1 63 GNSP1 A O NA NA 4 kV NFET gate / PFET source on channel 1 62 SNGP1 A O NA NA 4 kV NFET source / PFET gate on channel 1 61 BATT12 P I NA NA 4 kV Battery for channels 1 and 2 57 PGND12 G I NA NA 4 kV Power ground for channels 1 and 2 58 DRN2 A I NA NA 4 kV FET drain on channel 2 59 GNSP2 A O NA NA 4 kV NFET gate / PFET source on channel 2 60 SNGP2 A O NA NA 4 kV NFET source / PFET gate on channel 2 55 DRN3 A I NA NA 4 kV FET drain on channel 3 54 GNSP3 A O NA NA 4 kV NFET gate / PFET source on channel 3 53 SNGP3 A O NA NA 4 kV NFET source / PFET gate on channel 3 52 BATT34 P I NA NA 4 kV Battery for channels 3 and 4 56 PGND34 G I NA NA 4 kV Power ground for channels 3 and 4 49 DRN4 A I NA NA 4 kV FET drain on channel 4 50 GNSP4 A O NA NA 4 kV NFET gate / PFET source on channel 4 L9945 Device pins DS12275 - Rev 10 page 10/144 |
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