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MCZ33937AEK Fiches technique(PDF) 4 Page - Freescale Semiconductor, Inc |
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MCZ33937AEK Fiches technique(HTML) 4 Page - Freescale Semiconductor, Inc |
4 / 48 page Analog Integrated Circuit Device Data 4 Freescale Semiconductor 33937A PIN CONNECTIONS 12 PA_HS Digital Input Phase A High Side Active low input logic signal enables the High Side Driver for Phase A 13 PA_LS Digital Input Phase A Low Side Active high input logic signal enables the Low Side Driver for Phase A 14 VDD Analog Output VDD Regulator VDD regulator output capacitor connection. 15 PB_HS Digital Input Phase B High Side Active low input logic signal enables the High Side Driver for Phase B 16 PB_LS Digital Input Phase B Low Side Active high input logic signal enables the Low Side Driver for Phase B 17 INT Digital Output Interrupt Interrupt pin output 18 CS Digital Input Chip Select Chip Select input. It frames SPI commands and enables SPI port 19 SI Digital Input Serial In Input data for SPI port. Clocked on the falling edge of SCLK, MSB first 20 SCLK Digital Input Serial Clock Clock for SPI port and typically is 3.0 MHz 21 SO Digital Output Serial Out Output data for SPI port. Tri-state until CS becomes low 22 PC_LS Digital Input Phase C Low Side Active high input logic signal enables the Low Side Driver for Phase C 23 PC_HS Digital Input Phase C High Side Active low input logic signal enables the High Side Driver for Phase C 24 AMP_OUT Analog Output Amplifier Output Output of the current-sensing amplifier 25 AMP_N Analog Input Amplifier Invert Inverting input of the current-sensing amplifier 26 AMP_P Analog Input Amplifier Non-Invert Non-inverting input of the current-sensing amplifier 27 OC_OUT Digital Output Over-current Out Totem pole digital output of the Over-current Comparator 28 OC_TH Analog Input Over-current Threshold Threshold of the over-current detector 29 VSS Ground Voltage Source Supply Ground reference for logic interface and power supplies 30, 31 GND Ground Ground Substrate and ESD reference, connect to VSS 32 VLS_CAP Analog Output VLS Regulator Output Capacitor VLS Regulator connection for additional output capacitor, providing low- impedance supply source for Low Side Gate Drive 34 PC_LS_S Power Input Phase C Low Side Source Source connection for Phase C Low Side FET 35 PC_LS_G Power Output Phase C Low Side Gate Drive Gate drive output for Phase C Low Side 36 PC_HS_S Power Input Phase C High Side Source Source connection for Phase C High Side FET 37 PC_HS_G Power Output Phase C High Side Gate Drive Gate Drive for output Phase C High Side FET 38 PC_BOOT Analog Input Phase C Bootstrap Bootstrap capacitor for Phase C 39 PB_LS_S Power Input Phase B Low Side Source Source connection for Phase B Low Side FET 40 PB_LS_G Power Output Phase B Low Side Gate Drive Gate Drive for output Phase B Low Side 41 PB_HS_S Power Input Phase B High Side Source Source connection for Phase B High Side FET 42 PB_HS_G Power Output Phase B High Side Gate Drive Gate Drive for output Phase B High Side 43 PB_BOOT Analog Input Phase B Bootstrap Bootstrap capacitor for Phase B 44 PA_LS_S Power Input Phase A Low Side Source Source connection for Phase A Low Side FET Table 1. 33937A Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on page 20. Pin Pin Name Pin Function Formal Name Definition |
Numéro de pièce similaire - MCZ33937AEK |
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Description similaire - MCZ33937AEK |
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