IRF IRMCT3UF1AP Complete integrated high performance sensorless speed control in a compact, ruggedized package Datasheet

PD-97175B
DIGITAL SENSORLESS MOTOR DRIVE MODULE
IRMCT3UF1
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
MP-3T
Description
Feature Summary
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 Designer TM tools. No software code
development is required due to its pre-configured
Motion Control Engine.
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
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.
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10/20/06
IRMCT3UF1
Electrical Characteristics @Tc = 25°C (Unless Otherwise Specified)
Parameter
Value
INPUT POWER
Voltage
Power Dissipation
OUTPUT POWER
Power
Phase Current
28Vdc to 48Vdc
12.5Watts
500VA Continuous
15Arms Continuous
20Arms Overload
INTERFACE
Diagnostic Inteface ( RS232C/422 )
Analog Input
DISCRETE I/O
Input
Output
ANALOG FEEDBACK
Current Sensing
Voltage Sensing
Analog to Digital Converter
PROTECTION
Output Current Trip Level
Over-Temperature Trip Level
Short Circuit Response Time
DC BUS VOLTAGE
Maximum DC Bus Voltage
Minimum DC Bus Voltage
AMBIENT ENVIRONMENT
57.6Kbaud Single Ended
0-2.5V or 2.5-5.0V Input Reference Command
ON / OFF, Fault Clear
FAULT
Leg Shunt - ( low side )
Vbus Voltage Divider
12 bit Resolution
500VA Version - 30A Peak
110°C Min
5.0 µs
48V
20V
Case Operating Temperature
-40°C to 85°C
Storage Temperature
POWER MODULE
-55°C to125°C
Power Stage
Rth-JC
Maximum Operating TJ (MOSFET)
2
IMS contains 6 Mosfets
1.5°C/W
150°C
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IRMCT3UF1
Overview
The IRMCT3UF1 is a complete Sensorless drive system based on a proprietary digital motion control ASIC.
The system is based on a configurable control engine implemented by hardware logics in the ASIC. The
system has a simple and low cost structure, made possible by an advanced IR motion power components
including the MOSFET module and IR2011 monolithic gate driver IC. These components together with the
ASIC simplify hardware implementation. Since all control logic is implemented in hardware state machine
as opposed to programmed software, unmatched parallel computation is achieved resulting in higher
bandwidth control and higher motor operating frequency (< 25µsec PWM period).
Module Block Diagram
DC Bus
Controller Section
EEPROM
Power
Interface
Section
Sensorless FOC Algorithm
Serial
Interface
RAMP
RS232 C
+
+
-
-
Host
Register
Interface
e
+
jθ
Space
Vector
PWM
Gate
Gate
Driv
Gate
Driv
Drive
e
e
Dead
time
FAULT
Configuration
Power
Substrate
Rotor Angle /
speed
Estimator
Registers
Monitoring
Registers
VBus
e
Discrete
Interface
jθ
2/ 3
A/D
interface
Motor
Current
Measurement
A/D
Analog
Speed
Command
Power
Interfac
e
Discrete I/O
Analog
Speed
Command
Current
shunt
+15 +5 +3.3
DC Bus Rtn
Application Diagram
28V DC Bus
Bus
Capacitor
Transient
Protection
16,17
DCDC 1
7
DCDC 2
Linear
Reg
24
+5V
26
+3.3V
28V Bus Rtn
28
27
FLT
Control
Computer
FLT Clr
Start/Stop
Analog 0 Ref
+15V
Status - Fault
31
Status - OK
30
Power
Substrate
(IMS)
Control Board
Gate
Drive
Gate
Drive
Gate
Power
10,11
14,15
5,6
Drive
Drive
RS232
8,9
.02
Sensorless
Control
ASIC
Fault
Logic
Over-Temp
3,4
Over-Load
.02
33
VBus
32
A/D
34
18
29
U Phase
Current
V Phase
Current
W Phase
Current
12,13
.02
Analog 0 Ref
PM
Motor
substrate
Speed cmd
Analog Speed
Command
22,23,25
1,2
28V Bus Rtn
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IRMCT3UF1
Pin Designation Table
Power Side
Control Side
Pin #
Pin Description
Pin #
Pin Description
1
MOT_RTN
18
2.5V_REF_BUF
2
MOT_RTN
19
CS_LU ( sense )
3
CS_LW
20
CS_LV ( sense )
4
CS_LW
21
CS_LW ( sense )
5
PHASE_W
22
GND
6
PHASE _W
23
GND
7
+15V
24
+5.0V
8
CS_LU
25
GND
9
CS_LU
26
+3.3V
10
PHASE_U
27
RX
11
PHASE _U
28
TX
12
CS_LV
29
SPD_CMD
GRN
13
CS_LV
30
14
PHASE_V
31
RED
15
PHASE_V
32
FLT_CLR
16
17
VBUS
VBUS
33
34
FAULT
START/STOP
Pin Descriptions
MOT_RTN (Pins 1, 2) - These two pins are connected
to the motor bus voltage return path as well as the
control power supply grounds.
CS_LW, CS_LU and CS_LV (Pins 3 & 4, 8 & 9,
12 & 13) - These pins are the current sense
connections for corresponding motor phase. The
pins on the power side are the output of the low
side MOSFETs and must be connected to the
current sense resistor in the external application.
Each pin must also be connected to the
coresponding current sense connection on the
control side (see CS_LU, CS_LV, CS_LW
description below).
PHASE_W, PHASE_U, PHASE_V (Pins 5 & 6,
10 & 11, 14 &15) - Motor connections for the three
phases.
VBUS (Pins 16 & 17) - Input voltage for the motor.
The nominal value is 28Vdc with a maximum of 48V.
2.5V_REF_BUF (Pin 18) - 2.5V reference buffer
provided for speed command referencing.
(see SPD_CMD description)
4
CS_LU, CS_LV, CS_LW (Pins 19, 20 & 21) Control side inputs from the current sense
resistors. These monitor the voltage waveform at
the top of the current sense resistor and use this
signal to track the rotation of the motor. An
approximate value for the resistor can be found
using the Servo Designer software needed to
configure the motor controller. The pins must be
connected directly to the corresponding pins on the
power side and care should be taken to make sure
all three traces are approximately equal in length.
Use low-inductance shunt resistors and keep leads
short.
GND (Pins 22, 23 & 25) - Ground connections
for the +15V, +5V and +3.3V power supplies. All
three should be connected. This can be
accomplished at the hybrid interface or by tying all
three pins to a common ground plane.
+15V, +5.0V, +3.3V (Pins 7, 24 & 26) - Local
housekeeping power supplies for the unit. The
+15V power supply is used to drive the MOSFETs and
should be rated at 100mA. The +5.0V and +3.3V
supplies are responsible for the rest of the ICs in
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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: 02.5V 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.
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.
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.
Input / Output Characteristics
I/O
Pin Description
Parameter
Min.
Typ.
Max.
Units
2.5
2.525
V
RED, GREEN
Reference Voltage
Drive Current
2.475
Pins 30, 31
1.0
-
100
30
-
mA
Internal Series Resistance
No FAULT
FAULT
3.3
-
0.2
-
V
Clear Pulse
Clear Pulse Amplitude
1.0
-
-
-
µs
5.5
0
Max Speed 1
-
2.5
0
-
Max Speed 2
Voltage
14.25
5.0
15
15.75
Load Current
Voltage
4.75
100
5.0
5.25
mA
V
Load Current
3.135
100
3.3
3.465
mA
-
mA
Pins 32, 33
Pin 29
FAULT
SPEED COMMAND
Pin 7
+15V
Pin 24
+5.0V
Pin 26
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3.3V
Voltage
Load Current
-
200
Ω
V
V
5
IRMCT3UF1
Case Outline and Dimensions - MP-3T
34
6
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IRMCT3UF1
Module Screening
Test
Method
Frequency
Sampling
Internal Visual (Hybrids)
MIL-STD-883 TM2017
100%
Temperature Cycling
Pre-Burn Electrical Test
MIL-STD-883 TM1010 (20 Cycles -55°C To 125°C)
Test Specification
100%
100%
Burn-In-Static-Power Stage
Burn-In Active Hybrid
MIL-STD-883 TM1015 Condition A (125°C, 160 hrs)
MIL-STD-883 TM1015 Condition A (85°C, 160 hrs)
100%
100%
Final Electrical Test
High Potential Test
Test Specification
MIL-STD-883 TM1003 Condition E (500 Vdc)
100%
100%
Physical and Mechanical External Visual
MIL-STD-883 TM2009
100%
Part Numbering Nomenclature
IR
Motor Control
Technology Module
Control Technology
MCT
3
UF
1
A
01 P
Screening Level
P = Unscreened, 25°C Electrical Test
( Not for Qualification )
H = Refer to Screening Table
3 = Digital Controller Sine Current
based Sensorless
Customer Specific Identification
Package Type
Application Specific
UF = MP-3T Low Voltage
Digital Control
Blank = Standard Part
Blank = Standard Part
A = Custom Part
Output Voltage ( Switch Rating )
1 = 100V
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
IR LEOMINSTER : 205 Crawford St., Leominster, Massachusetts 01453, USA Tel: (978) 534-5776
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 10/2006
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