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Freescale Semiconductor Electronic Components Datasheet

MC33932 Datasheet

5.0A Throttle Control H-Bridge

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MC33932 pdf
Freescale Semiconductor
Technical Data
Document Number: MC33932
Rev. 5.0, 10/2012
5.0 A Throttle Control H-Bridge
The 33932 is a monolithic H-Bridge Power IC in a robust thermally
enhanced package. The 33932 has two independent monolithic
H-Bridge Power ICs in the same package. They are designed primarily
for automotive electronic throttle control, but are applicable to any low
voltage DC servo motor control application within the current and
voltage limits stated in this specification.
Each H-Bridge in the 33932 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 11 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 under-voltage, over-current, and over-temperature 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).
Features
• 8.0 to 28 V continuous operation (transient operation from 5.0 to
40 V)
• 235 mmaximum RDS(ON) at 150 °C (each H-Bridge MOSFET)
• 3.0 and 5.0 V TTL / CMOS logic compatible inputs
• Output short-circuit protection (short to VPWR or GND)
• Over-current limiting (regulation) via internal constant-off-time
PWM
• Temperature dependant 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 (each half with inputs
floating or set to match default logic states)
VDD
33932
THROTTLE CONTROL H-BRIDGE
VW SUFFIX (PB-FREE)
98ARH98330A
44-PIN HSOP
WITH PROTRUDING
HEAT SINK
EK SUFFIX (PB-FREE)
98ASA99334D
54-PIN SOICW-EP
ORDERING INFORMATION
Device
(Add R2 Suffix for
Tape and Reel)
Temperature
Range (TA)
Package
MC33932VW
MC33932EK
-40 to 125 °C
44 HSOP
54 SOICW-EP
VPWR
MCU
VDD
33932
SFA
FBA
VPWRA
CCPA
OUT1
IN1
IN2
D1
EN/D2
IN3
IN4
D3
EN/D4
FBB
OUT2
PGNDA
AGNDA
VPWRB
CCPB
OUT3
SFB
PGNDB
AGNDB
OUT4
MOTOR
VPWR
MOTOR
Figure 1. MC33932 Simplified Application Diagram
© Freescale Semiconductor, Inc., 2009-2012. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MC33932 Datasheet

5.0A Throttle Control H-Bridge

No Preview Available !

MC33932 pdf
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VPWRA
LOGIC SUPPLY
VDD
CCPA
IN1
IN2
EN/D2
D1
SFA
FBA
AGNDA
VCP CHARGE
PUMP
GATE DRIVE
AND
PROTECTION
LOGIC
TO GATES
HS1
LS1
HS2
LS2
VSENSE
ILIM PWM
LOGIC SUPPLY
VDD
HS1
LS1
HS2
OUT1
OUT2
LS2
PGND
CURRENT MIRROR
AND
CONSTANT OFF-TIME
PWM CURRENT REGULATOR
H-Bridge A
H-Bridge B
PGNDA
VPWRB
CCPB
IN3
IN4
EN/D4
D3
SFB
FBB
VCP CHARGE
PUMP
GATE DRIVE
AND
PROTECTION
LOGIC
TO GATES
HS1
LS1
HS2
LS2
VSENSE
ILIM PWM
HS1
LS1
HS2
OUT3
OUT4
LS2
PGND
CURRENT MIRROR
AND
CONSTANT OFF-TIME
PWM CURRENT REGULATOR
AGNDB
PGNDB
33932
2
Figure 2. 33932 Simplified Internal Block Diagram
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MC33932
Description 5.0A Throttle Control H-Bridge
Maker Freescale Semiconductor
Total Page 28 Pages
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