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PDF 33932 Data sheet ( Hoja de datos )
| Número de pieza | 33932 | |
| Descripción | 5.0A Throttle Control H-Bridge | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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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 m maximum 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.
1 page  
PIN CONNECTIONS
Table 1. 33932 Pin Definitions (continued)
Pin
HSOP
(VW)
Pin
SOICW-EP Pin Name
(EK)
Pin
Function
44 52 SFA Logic
Output -
Open Drain
Formal Name
Status Flag
(Active Low)
TAB
54
AGNDA
Analog
27
AGNDB
Ground
– 2, 6 - 8, 14,
NC
None
21, 22, 29,
33 - 35, 41,
48, 49
– EP EP Thermal
Pad
Analog Signal
Ground
No Connect
Exposed Pad
Definition
H-Bridge A open drain active LOW Status Flag output (requires
an external pull-up resistor to VDD. Maximum permissible load
current < 0.5 mA. Maximum VSFLOW< 0.4 V at 0.3 mA. Maximum
permissible pull-up voltage < 7.0 V.)
The low-current analog signal ground must be connected to
PGND via low-impedance path (<10 m, 0 Hz to 20 kHz).
These pins have no electrical connection or function.
Exposed TAB is also the main heatsinking path for the device and
must be connected to ground.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33932
5
5 Page 
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
Short-circuit Condition
t FAULT
9.0 ISC Short-circuit Detection Threshold
Hard Short Occurs
tB
6.5 ILIM
OUT1, OUT2 Tri-stated,
SF set Low
05..00
tB (~16 s)
TIME
Figure 8. Short-circuit Detection Turn-OFF Time tFAULT
.
Current Limit Threshold Foldback.
Operation within this region must be
limited to non-repetitive events not to
6.5 exceed 30 s per 24 hr.
4.2
tSEP
tHYS
tFB tLIM
Figure 9. Output Current Limiting Foldback Region
tLIM
Thermal Shutdown
Analog Integrated Circuit Device Data
Freescale Semiconductor
33932
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet 33932.PDF ] | |
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