MCZ33937AEK datasheet(4/48 Pages) FREESCALE

Il numero della parte	MCZ33937AEK

Spiegazioni elettronici	Fully specified from 8.0 to 40 V covers 12 and 24 V automotive systems

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Produttore elettronici	FREESCALE [Freescale Semiconductor, Inc]

Homepage	http://www.freescale.com

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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

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 Name

Pin Function

Formal Name

Definition

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