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33937_09

更新时间: 2022-12-14 19:14:06
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 晶体驱动器晶体管场效应晶体管
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48页 734K
描述
Three Phase Field Effect Transistor Pre-driver

33937_09 数据手册

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Document Number: 33937  
Rev. 6.0, 9/2009  
Freescale Semiconductor  
Advance Information  
Three Phase Field Effect  
Transistor Pre-driver  
33937  
33937A  
The 33937 and 33937A are Field Effect Transistor (FET) pre-  
drivers designed for three phase motor control and similar  
applications. The 33937A has been specifically enhanced to  
improve performance when driving very high current loads. The  
integrated circuit (IC) uses SMARTMOStechnology.  
THREE-PHASE PRE-DRIVER  
The IC contains three High Side FET pre-drivers and three Low  
Side FET pre-drivers.Three external bootstrap capacitors provide  
gate charge to the High Side FETs.  
The IC interfaces to a MCU via six direct input control signals,  
an SPI port for device setup and asynchronous reset, enable and  
interrupt signals. Both 5.0 and 3.0 V logic level inputs are  
accepted and 5.0 V logic level outputs are provided.  
EK SUFFIX (Pb-FREE)  
98ASA99334D  
Features  
54-PIN SOICW-EP  
• Fully specified from 8.0 to 40 V covers 12 and 24 V automotive  
systems  
• Extended operating range from 6.0 to 58 V covers 12 and 42 V  
systems  
• Greater than 1.0 A gate drive capability with protection  
• Protection against reverse charge injection from CGD and CGS  
of external FETs  
ORDERING INFORMATION  
Temperature  
Device  
Package  
Range (T )  
A
MCZ33937EK/R2  
MCZ33937AEK/R2  
-40°C to 135°C  
54 SOICW-EP  
• Includes a charge pump to support full FET drive at low battery  
voltages  
• Deadtime is programmable via the SPI port  
• Simultaneous output capability enabled via safe SPI command  
• Pb-free packaging designated by suffix code EK  
V
SYS  
33937  
VPUMP  
PUMP  
VSUP  
PA_HS_G  
PB_HS_G  
PC_HS_G  
VPWR  
VLS  
VDD  
VSS  
PA_HS_S  
PB_HS_S  
PC_HS_S  
3
3
3
PX_HS  
PX_LS  
PHASEX  
CS  
PA_LS_G  
PB_LS_G  
PC_LS_G  
MCU  
SI  
OR  
DSP  
SCLK  
SO  
PX_LS_S  
RST  
INT  
EN1  
EN2  
AMP_P  
AMP_N  
AMP_OUT  
R
SEN  
GND  
Figure 1. 33937 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2008-2009. All rights reserved.  

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