IRMCT3UF1 Datasheet PDF - International Rectifier
| Part Number | IRMCT3UF1 | |
| Description | Digital Sensorless Motor Driver Module | |
| Manufacturers | International Rectifier | |
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PD-97175B
DIGITAL SENSORLESS MOTOR DRIVE MODULE
Complete Integrated High Performance Sensorless
Speed Control in a Compact, Ruggedized Package
• For up to 500VA, 3Phase Brushless DC and PMAC
Sinusoidal Motors
• Ideal for Pumps, Fans, Compressors in
Rugged Environments needing a Small Footprint
• Uses IR’s iMOTIONTM Digital Integrated Motor
Drive Technology
IRMCT3UF1
MP-3T
Description
IR’s HiRel Digital Sensorless Motor Drive Module is a
complete digital speed/torque controller ideal for
applications demanding efficient operation in a compact
and rugged package such as fuel pumps, fans, and
compressors. This control is supported by the latest
hardware motion control technology from IR, including
the Servo DesignerTM tools. No software code
development is required due to its pre-configured
Motion Control Engine.
The HiRel Motor Drive Module contains IR’s advanced
iMOTIONTM Motion Control Chipset with monolythic Gate
Driver ICs and state of the art 100V MOSFETs enabling
simple and cost effective design of high reliability
speed controls.
Feature Summary
n No Software - Digital Sine FOC Algorithm
utilizes IR’s New Hardware based Motion
Control Engine
n Digital Configuration Interface supports
Dynamic Re-Configuration of FOC
n Complete Digital Sine-Drive supports both 2 and
3-Phase Center Aligned and Assymetrical SVM
Operation > 20KHz PWM Rate
n Ideal for Speed/Torque Control of High
Performance Motors ( > 25000 RPM )
n Speed/Torque command >10KHz Digital
Speed Command Rate/Sampled Analog
Command Input
n Control Loop Computation Time 11µsec
n Output Current up to 20Arms ( 48Vdc Bus )
n Max RS232C Speed 57.6 Kbps
n Stand-Alone Operation possible
( without Host Micro )
n Lightweight Plastic Ring-Frame Enclosure
n Low Rth Insulated Metal Substrate ( IMS )
with Low Rds(on) MOSFETs and IR’s
Advanced HVIC Gate Drivers
n Storage Temperature Range -55°C to +125°C
n Case Operating Temperature -40°C to +85°C
n Thermal Resistance 1.5°C/W
www.irf.com
1
10/20/06
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IRMCT3UF1
the circuit including logic and the iMotion digital
controller. The +5.0V supply should be rated at
100mA and +3.3V supply at 200mA.
RX, TX (Pins 27 & 28) - RS-232 interface pins for
programming the controller. The interface operates
at 57.6kBaud.
SPD_CMD (Pin 29) - Speed command for the
motor controller. For the IRMCT3UF1, there are two
operating ranges for the speed command input: 0-
2.5V and 2.5-5V. In each case, 2.5V is zero speed
and the other extreme (0V or 5V) is maximum
speed. An external 2.5V reference is provided to
help configure a particular speed command
interface.
GRN, RED (Pins 30 & 31) - Outputs for driving
Green and Red LEDs. These outputs are provided
as a visual interface to determine the status of the
drive. The Green LED output indicates a clear
condition and the Red LED indicates that a Fault
has occurred. Each output is referenced to +3.3V
and is capable of driving a maximum current of
30mA. Also, each output has an internal series
resistance of 100Ω.
FLT_CLR, FAULT (Pins 32 & 33) - Fault indication
and Fault Clear function. Use these pins to monitor
the Fault status of the controller. When there is no
fault (clear condition), the fault pin is low. It goes to
3.3V upon the occurrence of a Fault. The controller
can be reset by pulsing the Fault Clear pin high for
a minimum of 1µs. This is a Schmitt input and is
5.5V tolerant.
START/STOP (Pin 34) - Start and Stop command for
the controller. The drive will start on the rising edge
of the command and will stop on the falling edge.
This is a Schmitt input and is 5.5V tolerant.
Input / Output Characteristics
I/O
Pins 30, 31
Pin Description
RED, GREEN
Pins 32, 33
FAULT
Pin 29
Pin 7
Pin 24
Pin 26
SPEED COMMAND
+15V
+5.0V
3.3V
Parameter
Reference Voltage
Drive Current
Internal Series Resistance
No FAULT
FAULT
Clear Pulse
Clear Pulse Amplitude
0
Max Speed 1
Max Speed 2
Voltage
Load Current
Voltage
Load Current
Voltage
Load Current
www.irf.com
Min.
2.475
1.0
-
-
3.3
1.0
-
-
-
-
14.25
-
4.75
-
3.135
-
Typ.
2.5
-
100
-
-
-
-
2.5
0
5.0
15
100
5.0
100
3.3
200
Max.
2.525
30
-
0.2
-
-
5.5
-
-
-
15.75
-
5.25
-
3.465
-
Units
V
mA
Ω
V
µs
V
mA
V
mA
V
mA
5
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| Information | Total 7 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ IRMCT3UF1.PDF Datasheet ] | |
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