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MC33926 데이터시트 PDF




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부품번호 MC33926 기능
기능 5.0A Throttle Control H-Bridge
제조업체 Freescale Semiconductor
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MC33926 데이터시트, 핀배열, 회로
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.




MC33926 pdf, 반도체, 판매, 대치품
PIN CONNECTIONS
PIN CONNECTIONS
Transparent Top
View of Package
IN2
IN1
SLEW
VPWR
AGND
VPWR
INV
FB
NC
1 32 31 30 29 28 27 26 25
2 24
3 23
4 22
5
AGND
21
6 20
7 19
8 18
9 10 11 12 13 14 15 16 17
NC
PGND
PGND
PGND
SF
PGND
PGND
PGND
NC
Figure 3. 33926 Pin Connections
A functional description of each pin can be found in the Functional Description section beginning on page 13.
Table 2. 33926 Pin Definitions
Pin
Pin Name
Pin
Function
Formal Name
1
IN2 Logic Input
Input 2
2
IN1 Logic Input
Input 1
3
4, 6, 11, 31
5,
Exposed
Pad
7
8
9, 17, 25
SLEW
VPWR
AGND
INV
FB
NC
Logic Input
Power Input
Analog
Ground
Logic Input
Analog
Output
Slew Rate
Positive Power
Supply
Analog Signal
Ground
Input Invert
Feedback
No Connect
10
EN
Logic Input
Enable Input
Definition
Logic input control of OUT2; e.g., when IN2 is logic HIGH, OUT2 is set to VPWR,
and when IN2 is logic LOW, OUT2 is set to PGND. (Schmitt trigger input with
~80 A source so default condition = OUT2 HIGH.)
Logic input control of OUT1; e.g., when IN1 is logic HIGH, OUT1 is set to VPWR,
and when IN1 is logic LOW, OUT1 is set to PGND. (Schmitt trigger Input with
~80 A source so default condition = OUT1 HIGH.)
Logic input to select fast or slow slew rate. (Schmitt trigger input with ~80 A
sink so default condition = slow.)
These pins must be connected together physically as close as possible and
directly soldered down to a wide, thick, low resistance supply plane on the PCB.
The low current analog signal ground must be connected to PGND via low
impedance path (<<10 m, 0 Hz to 20 kHz). Exposed copper pad is also the
main heatsinking path for the device.
Sets IN1 and IN2 to logic LOW = TRUE. (Schmitt trigger input with ~80 A sink
so default condition = non-inverted.)
Load current feedback output provides ground referenced 0.24% of H-Bridge
high-side output current. (Tie pin to GND through a resistor if not used.)
No internal connection is made to this pin.
When EN is logic HIGH, the device is operational. When EN is logic LOW, the
device is placed in Sleep mode. (logic input with ~80 A sink so default
condition = Sleep mode.)
33926
4
Analog Integrated Circuit Device Data
Freescale Semiconductor

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MC33926 전자부품, 판매, 대치품
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 3. Maximum Ratings (continued)
All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or
permanent damage to the device. These parameters are not production tested.
Symbol
Ratings
Value
Unit Notes
TPPRT
RJC
Peak Package Reflow Temperature During Reflow
Approximate Junction-to-Case Thermal Resistance
250
< 1.0
°C
C/W
(7) (8)
(9)
Notes
7. Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
8. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C for Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL),
9. Exposed heatsink pad plus the power and ground pins comprise the main heat conduction paths. The actual RJB (junction-to-PC board)
values will vary depending on solder thickness and composition and copper trace thickness and area. Maximum current at maximum die
temperature represents ~16 W of conduction loss heating in the diagonal pair of output MOSFETs. Therefore, the RJA must be
<5.0 C/W for maximum current at 70 C ambient. Module thermal design must be planned accordingly.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33926
7

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