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Freescale Semiconductor Electronic Components Datasheet



MC33927

Three-Phase Field Effect Transistor Pre-Driver



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MC33927 pdf
Freescale Semiconductor
Advance Information
Document Number: MC33927
Rev. 2.0, 8/2007
Three-Phase Field Effect
Transistor Pre-Driver
33927
The 33927 is a Field Effect Transistor (FET) pre-driver designed for
three-phase motor control and similar applications. The integrated
circuit (IC) uses SMARTMOStechnology.
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, a SPI
port for device setup and asynchronous reset, enable and interrupt
signals. Both 5.0V and 3.0V logic level inputs are accepted and 5.0V
www.DataSheelto4gUic.colemvel outputs are provided.
Features
• Fully specified from 8.0V to 40V covers 12V and 24V automotive
systems
• Extended operating range from 6.0V to 58V covers 12V and 42V
systems
• 1.0A 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
• Deadtime is programmable via the SPI port
• Simultaneous output capability enabled via safe SPI command
• Pb-Free Packaging Designated by Suffix Code EK
VBAT
33927
VPUMP
PUMP
VPWR
VLS
VBAT
PA_HS_G
PB_HS_G
PC_HS_G
MCU
OR
DSP
VDD
PA_HS_S
VSS
PB_HS_S
PC_HS_S
3
PX_HS
3
PX_LS
3 PHASEX
PA_LS_G
CS PB_LS_G
SI PC_LS_G
SCLK
SO PGND_X
RST
INT
EN1
EN2
AMP_P
AMP_N
GND AMP_OUT
FET PRE-DRIVER
EK SUFFIX (Pb-FREE)
98ASA99334D
54-PIN SOICW-EP
ORDERING INFORMATION
Device
MCZ33927EK/R2
Temperature
Range (TA)
-40°C to 125°C
Package
54 SOICW-EP
RSEN
Figure 1. 33927 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., 2007. All rights reserved.



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MC33927 pdf
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
PUMP
VPWR
VBAT
VPUMP
PGND
www.DataSheet4U.com
MAIN
CHARGE
PUMP
OSCILLATOR
5V
REG.
VDD
VLS
REG.
TRICKLE
CHARGE
PUMP
HOLD
-OFF
CIRCUIT
RST
INT
EN1
EN2
PX_HS
PX_LS
CS
SI
SCLK
SO
PHASEX
OC_OUT
GND(2)
3
3
3
+
-
OVER-CUR.
COMP.
CONTROL
LOGIC
+
-
I-SENSE
AMP.
UV
DETECT
3X
T-LIM
VBAT
+
DESAT.
COMP
1.4V
-
+
-
HIGH-
SIDE
DRIVER
+
-
PHASE
COMP.
VBAT
LOW-
SIDE
DRIVER
VSS OC_TH AMP_OUT AMP_N AMP_P
VLS_CAP
VLS
VDD
PX_BOOT
PX_HS_G
PX_HS_S
PX_LS_G
PGNDX
Figure 2. 33927 Simplified Internal Block Diagram
33927
2
Analog Integrated Circuit Device Data
Freescale Semiconductor



Part Number MC33927
Description Three-Phase Field Effect Transistor Pre-Driver
Maker Freescale Semiconductor - Freescale Semiconductor
Total Page 30 Pages
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