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Temperature
Range (T A )
Freescale Semiconductor
Advance Information
Three Phase Field Effect
Transistor Pre-driver
The 33937A is a field effect transistor (FET) pre-drivers designed
for three phase motor control and similar applications. The integrated
circuit (IC) uses SMARTMOS technology.
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.
Features
? 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
? Includes a charge pump to support full FET drive at low battery
voltages
? Dead time is programmable via the SPI port
? Simultaneous output capability enabled via safe SPI command
Document Number: MC33937
Rev. 8.0, 8/2012
33937A
THREE PHASE PRE-DRIVER
EK SUFFIX (Pb-FREE)
98ASA99334D
54-PIN SOICW-EP
ORDERING INFORMATION
Device
(Add R2 Suffix for Package
Tape and Reel)
MC33937APEK -40 to 135 ? C 54 SOICW-EP
See document MC33937 Rev. 6.0 for MCZ33937EK
specification.
V SYS
VPUMP
PUMP
VPWR
VLS
VDD
VSS
33937
VSUP
PA_HS_G
PB_HS_G
PC_HS_G
PA_HS_S
PB_HS_S
PC_HS_S
MCU
OR
DSP
3
3
3
PX_HS
PX_LS
PHASEX
CS
SI
SCLK
SO
PA_LS_G
PB_LS_G
PC_LS_G
PX_LS_S
RST
INT
EN1
EN2
GND
AMP_P
AMP_N
AMP_OUT
R SEN
Figure 1. 33937A 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., 2011-2012. All rights reserved.
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MCZ33972AEW 功能描述:接口 - 专用 MULT SW DET SUPRESS WU RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59
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