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NXP Semiconductors Electronic Components Datasheet

33937A Datasheet

Three phase field effect transistor pre-driver

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NXP Semiconductors
Technical Data
Three phase field effect transistor
pre-driver
Document Number: MC33937
Rev. 9.0, 7/2016
33937A
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.
THREE PHASE PRE-DRIVER
Features
• Extended operating range from 6.0 V to 58 V covers 12 V and 42 V systems
• Gate drive capability of 1.0 A to 2.5 A
• Fully specified from 8.0 V to 40 V covers 12 and 24 V automotive systems
• 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
EK SUFFIX (Pb-FREE)
98ASA99334D
54-PIN SOICW-EP
Applications
Automotive systems
• Cooling fan
• Water pump
• Actuator controls
• Fuel pump
• Electro-hydraulic and electric power steering
• Engine control
• Motor control
VSYS
MCU
OR
DSP
33937
VPUMP
PUMP
VPWR
VLS
VSUP
PA_HS_G
PB_HS_G
PC_HS_G
VDD
PA_HS_S
VSS
PB_HS_S
PC_HS_S
3
3
3
PX_HS
PX_LS
PHASEX
PA_LS_G
CS PB_LS_G
SI PC_LS_G
SCLK
SO PX_LS_S
RST
INT
EN1
EN2
AMP_P
AMP_N
GND AMP_OUT
RSEN
Figure 1. 33937A simplified application diagram
© 2016 NXP B.V.


NXP Semiconductors Electronic Components Datasheet

33937A Datasheet

Three phase field effect transistor pre-driver

No Preview Available !

1 Orderable parts
Table 1. Orderable part variations
Part number (1)
MC33937APEK
Temperature (TA)
-40 °C to 135 °C
Notes
1. To order parts in Tape & Reel, add the R2 suffix to the part number.
Package
54 SOICW-EP
33937A
2
NXP Semiconductors


Part Number 33937A
Description Three phase field effect transistor pre-driver
Maker NXP
Total Page 30 Pages
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