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Freescale Semiconductor Electronic Components Datasheet



MC33926

5.0A Throttle Control H-Bridge


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MC33926 pdf
Freescale Semiconductor
Technical Data
5.0 A Throttle Control H-Bridge
The 33926 is a SMARTMOS monolithic H-Bridge Power IC
designed primarily for automotive electronic throttle control, but is
applicable to any low-voltage DC servo motor control application
within the current and voltage limits stated in this specification.
The 33926 is able to control inductive loads with currents up to
5.0 A peak. RMS current capability is subject to the degree of
heatsinking provided to the device package. Internal peak-current
limiting (regulation) is activated at load currents above 6.5 A 1.5 A.
Output loads can be pulse width modulated (PWM’ed) at frequencies
up to 20 kHz. A load current feedback feature provides a proportional
(0.24% of the load current) current output suitable for monitoring by a
microcontroller’s A/D input. A Status Flag output reports
undervoltage, overcurrent, and overtemperature fault conditions.
Two independent inputs provide polarity control of two half-bridge
totem-pole outputs. Two independent disable inputs are provided to
force the H-Bridge outputs to tri-state (high-impedance off state). An
inverted input changes the IN1 and IN2 inputs to LOW = true logic.
Features
• 5.0 to 28 V continuous operation (transient operation from 5.0 to
40 V)
• 225 mmaximum RDS(on) at 150 °C (each H-Bridge MOSFET)
• 3.0 V and 5.0 V TTL / CMOS logic compatible inputs
• Overcurrent limiting (Regulation) via an internal constant-off-time
PWM
• Output short-circuit protection (short to VPWR or ground)
• Temperature dependent current limit threshold reduction
• All Inputs have an internal source/sink to define the default (floating
input) states
• Sleep mode with current draw < 50 µA (with inputs floating or set to
match default logic states)
Document Number: MC33926
Rev. 10.0, 8/2014
33926
AUTOMOTIVE THROTTLE H-BRIDGE
ACTUATOR/ MOTOR EXCITER
BoStCtoAmLE V2:i1ew
PNB SUFFIX (Pb-FREE)
98ARL10579D
32-PIN PQFN
Applications
• Electronic Throttle Control (ETC)
• Exhaust Gas Recirculation (EGR)
• Turbo Flap Control
• Industrial and Medical pumps and motor control
VDD
VPWR
MCU
33926
SF VPWR
FB CCP
IN1 OUT1
IN2
INV
SLEW
D1
OUT2
D2 PGND
EN AGND
MOTOR
Figure 1. 33926 Simplified Application Diagram
© Freescale Semiconductor, Inc., 2007 - 2014. All rights reserved.



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MC33926 pdf
ORDERABLE PARTS
ORDERABLE PARTS
This section describes the part numbers available to be purchased along with their differences. Valid orderable part numbers
are provided on the web. To determine the orderable part numbers for this device, go to http://www.freescale.com and perform
a part number search for the following device numbers.
Table 1. Orderable Part Variations
Part Number
MC33926PNB
Notes
(1)
Temperature (TA)
-40 to 125 °C
Notes
1. To order parts in Tape & Reel, add the R2 suffix to the part number.
32 PQFN
Package
33926
2
Analog Integrated Circuit Device Data
Freescale Semiconductor



Part Number MC33926
Description 5.0A Throttle Control H-Bridge
Maker Freescale Semiconductor - Freescale Semiconductor
Total Page 26 Pages
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