IRF IRMDAC3

Reference Design Data Sheet (October 1998)
IRMDAC3
IR2233 Reference Design Kit:
Product Description
3-Phase 460VAC 3HP Motor Drive
Fig 1: IRMDAC3 Hardware
The IRMDAC3 Reference Design is a kit of parts that
work together as an evaluation platform for IR2233
three phase motor control IC and IRPT2062A power
module. User connects three phase AC, drive signals,
motor and hall sensors to complete the system.
Power hook-up is via terminal blocks and control
signals are made using a single in line header.
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How the IR2233 Control IC Adds Value
Monolithic HVIC Integrates Control and Drive
Yields Compact, Robust, Economical Designs
Allows Elegant, Convenient System Partition
Compatible with Short Circuit, Ground Fault and
Over-Temperature Protection Schemes
How the Power Module Adds Value
Integration of All Inverter Power Components;
Low Parasitic Coupling = High Performance
Current Sensing Shunts in DC Feed and Return
Onboard Temperature Sensor
Easily Mounted Package
Short Circuit Rated, Ultrafast IGBT Gen #4
Wide Operating Temperature Range
Metal Base gives Excellent Thermal Transfer
and Isolation to 2500V RMS
KEY
Signal
Power
Physical
Heatsink
IGBT
Power Module
2
Host PCB
1,3
Control
Rotor
Position
Sense
M
3
2
Kit Content
1 Host PCB for Input Processing and Control
2 IRPT2062A Integrated Power Module
3 IR2233 Three Phase Motor Control IC
Technical Contact and License Detail
Schematic and PCB Layout Data
Bill of Materials and Supplier Information
System Features
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System Block Diagram Fig 2
USER
KIT
1
460V Three Phase AC Inlet, 50/60Hz
Convenient Signal and Power Terminations
Inrush Current Limit and Surge Suppression
Integral +15V and +5V Bias Supplies
DC Bus Voltage and Current Feedback
150% Overload Capability (1 Minute)
Optimized Drive for Power Module
Includes Brake Switch and Drive
Fig 3
IRMDAC3
Host PCB
Bottom Layer
Reference Design Data Sheet (October 1998)
IRMDAC3
IRMDAC3 Kit Overview and System Benefits
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When furnished with user-provided logic level control signals, the IRMDAC3 forms a complete reference design
for a 3HP AC motor. Unlike outdated circuits based upon transformer drive or opto-couplers, the system uses
International Rectifier proprietary level-shifting gate drive circuits integrated within the IR2233J Control IC.
Separation of gate drive / control and low-voltage circuits from the power module included in the kit results in a
compact, effecient system. The user benfits from immediate hands-on experience and may customize at will
using shematics and circuit ideas as the basis for production designs.
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Gate drive, control and protection circuits are designed to closely match the operating characteristics of the
power semiconductors. This allows power losses to be minimized and power rating to be enhanced to a greater
extent than is possible by designing with individual components.
1. Host PCB Description
The host PCB receives power input from a 3-phase line and control signals provided by the user. In conjuntion with
the power module the result is a flexible power conversion system, primarily designed for interface with a 3HP
Motor, however other 3-phase loads may also be applied. The host PCB supports soft-start function which reduces
inrush current by using an NTC thermistor. Surge suppression is implemented using MOV’s as a further degree of
protection. Also on-board is a regulated low voltage power supply to provide bias for the IR2233J and other low
voltage components. When connected to the power module, the unit is fully protected against overcurrent and
ground faults through DC bus voltage and current feedback. Over-temperature is guarded against through feedback
from a thermistor embedded within the power module. A 16-pin single in line header connector is provided to
interface control signals and two terminal blocks connect 3-phase AC inlet and output to the load. The user
provides 5V CMOS / TTL level signals which are then processed by the IR2233J Control IC and delivered to the
power module.
Signals Available to User
In addition to availability of bias supplies derived for the host PCB, signals from the power module circuits and those
derived and processed on the host PCB such as fault status are available to the user. Current feedback signal from
the low side shunt is available on the IFB pin at 0.025V/A. If filtering of this signal is required to remove noise, a high
impedance buffer stage should be inserted between signal and filter. DC bus voltage feedback is provided on the
VFB pin. This reference is been scaled down by a factor of 100 and should be protected with a high impedance
buffer stage.
Fault Behavior.
The system is designed to tolerate overload conditions for one minute. The user should prevent such conditions
persisting beyond this period. In the event of shutdown initiated by ground-fault, overcurrent or over-temperature, the
inverter outputs are terminated and an LED will light to signal this condition. For more information on fault response
for IR2233J, please consult the data sheet.
Reference Design Data Sheet (October 1998)
IRMDAC3
Brake Function
In order to use the integrated brake switch, an external power resistor should be connected between pins BR and
P of terminal block J5. This resistor should be dimensioned for desired braking performance. Carefully choose the
value of this component to ensure the brake IGBT integrated within the power module remains below its maximum
current capability.
2. Power Module Description
The power module integrates all rectifiers, ultra-fast short circuit rated IGBTs, fast recovery commutation diodes ,
brake IGBT and other processing components needed for a 3HP Motor Drive or other loads requiring a 3-phase
variable frequency and/or PWM drive. Semiconductor dice are mounted on a thermally effecient substrate and
housed within a convenient, potted module. When connected to the host PCB, the power components become
configured as a 3-phase input bridge rectifier, and IGBT inverter with current sensing shunt resistors. An NTC
thermistor is bonded to the substrate to furnish the host PCB with accurate temperature reading. A galvanically
isolated metal backplate provides excellent thermal coupling to an external heatsink, which is necessary for fullload operation.
Circuit Layout within the module is carefully designed to minimize inductance in the power path, reduce noise
during inverter operation and to improve inverter efficiency. The IR2233 host board should be soldered to the power
module pins to complete the assembly. For detailed electrical specifications, please refer to the power module
datasheet.
Reference Design Data Sheet (October 1998)
IRMDAC3
Power Module Mounting and Hook-up Instructions
1.
2.
3.
4.
Remove all particles and grit from the heatsink and power substrate
Spread a thin layer of silicone grease on the heatsink, covering the entire area that the power substrate will occupy
Place the power substrate onto the heatsink with the mounting holes aligned and press firmly into the grease
Place the 2XM4 mounting screws and tighten to 1NM torque
External Connections
All input and output control connections are made via a 16-terminal single in line connector J6. Three phase input connections
are made to terminals R,S and T of J1. Inverter output terminal connections are made to terminals U,V and W of J7. Positive
DC Bus and brake IGBT collector connections are available on terminals P and BR respectively of J5. An external power
resistor may be connected between P and BR to dissipate braking energy.
Power-Up Procedure
Upon application of 3-phase input power, PWM inputs must be held high until the protection latch circuitry is reset. To reset
this latch before inverter start-up, RESET pin on J6 connector must be pulled down low for at least 2usec. This will set the
Fault feedback signal on J6 high. PWM input signals may then be actively driven.
Figure 4 Signal Connector
J6
Figure 5 Power Terminal Blocks
Figure 6 Power Module Mounting Screw Sequence
J1
1
VDD +5V
2
VCC +15V
3
N [DC bus (-) ]
4
IN1
5
IN2
6
IN3
7
IN4
8
IN5
9
IN6
10
IN7
11
FAULT
12
IFB
13
VFB
14
RESET
15
STOP
16
NC
1
R
2
S
3
T
J5
1
BR
2
P
J7
1
U
2
V
3
W
1
2
Reference Design Data Sheet (October 1998)
IRMDAC3
Mechanical Details
Figure 7
6.90 [175.26]
3.42 [86.82]
.50 [12.7]
CAPACITOR
1
2
2.50 [64.77]
J6
3
1
J1
2
1
2
3
J7
J5
1.50 [38.1]
CAPACITOR
CAPACITOR
J1
1
2
J5
3
1
J7
2
1
IGBT MODULE
2
3
.500
[12.70]
2.05 [52.07]
2 X 1.4dia [35.56]
4.65 [118.11]
CAPACITOR
3.40 [86.36]
CAPACITOR
16
CAPACITOR
1
PCB
Reference Design Data Sheet (October 1998)
IRMDAC3
Figure 8: Effeciency Maximization Charts Extract From Module Data Sheet
Reference Design Data Sheet (October 1998)
IRMDAC3
IGBT POWER MODULE
RS1
RT
Q1
Q7
Q2
Q3
Q5
Q4
Q6
RS2
R S T
N
RP
P G7
IS4
IS3
B R IS1 IS2 G 1 E 1 G 2 E 2
G3 E3 G4 E4
G5 E5 G6E6
U
V
W
R S T
N
RP
P G7
IS4
IS3
B R IS1 IS2 G 1 E 1 G 2 E 2
G3 E3 G4 E4
G5 E5 G6 E6
U
V
W RT1 RT2
RT1 RT2
VCC
PROTECTION
CIRCUIT
TRIP
IR2233J
BRAKE
DRIVER
SWITCHING
POWER
SUPPLY
J1
R
3
S
φ INPUT
T
J5
J6
P
BR
U
V D D V C C N R E S E T V F B IFB IN7 F A U L T IN1 IN2 IN3 IN4 IN5 IN6 S T O P
+5V +15V
IR2233 DRIVER BOARD
3
V
W
φ OUTPUT
J7
Reference Design Data Sheet (October 1998)
IRMDAC3
Figure 9: Technical Specifications @ Tc=25C Unless Stated Otherwise
P arameter
Value
C ondi ti on
P OWE R INP UTS
Voltage
460Vrms- 20% + 10%
Frequency
50 / 60 Hz
C urrent
8.26A RMS @ Nomi nal Full Load
S urge Max: 150A P eak
Ta=40C , RthS A = 0.42C / Watt
Li ne Impedance
4% to 8% Recommended
Li ne Reactor Requi red for
S ource Input Impedance <4%
P OWE R OUTP UTS
Voltage
0-460Vrms
P ower
3HP (2.2K W) Nomi nal P ower
150% Overload for 1 Mi nute
V i n=460VA C , Fpwm=4K Hz,
Fo=60Hz, Ta=40C ,
RthS A =0.42C / Watt
ZthS A Li mi ts Temp Ri se D uri ng
Overload
C urrent
5.9A rms Nomi nal, 8.85A rms Overload
B rake
10.5A
Maxi mum C urrent
/In1../In7,/Reset
5V Maxi mum (A cti ve Low)
C MOS , LS TTL or Open
C ollector C ompati ble
S top
5V Maxi mum (A cti ve Hi gh)
C MOS , LS TTL
D eadti me
0.2uS ec Mi ni mum
S ee IR2233 D ata
1.0 uS ec
Li mi ted only by B ootstrap
C apaci tor. S ee D esi gn Ti p 98-2
C ONTROL INP UTS
Mi ni mum Input P ulse Wi dth
P ROTE C TION
Output C urrent Tri p Level
28A P eak +/- 10%
Ground Fault Tri p Level
50A P eak +/- 10%
Over-Temperature Tri p
100C +/- 5%
C ase Temperature
Over-Voltage Tri p Level
850V +/- 10%
Maxi mi um P ersi stance 30S ec
Maxi mum D C Li nk Voltage
800V
Maxi mi um P ersi stance 30S ec
Mi ni mum D C Li nk Voltage
150V
To Mai ntai n A uxi lli ary S upply
S hort C i rcui t Response Ti me
2.5Usec
Li ne to Li ne or Li ne to B us
FE E D B A C K
C urrent (Ifb)
0.025V /A bus Typi cal
B us Voltage (V fb)
0.010V /V bus Typi cal
Fault Feedback (/Fault)
5V Maxi mum (A cti ve Low)
C MOS or LS TTL C ompati ble
A UX ILLIA RY S UP P LY
V cc
15V +/- 10%
V dd
5V +/- 5%
Icc+Idd
60mA
A vai lable to User
2500VA C 60Hz for 1 Mi nute
P i n to B aseplate Isolati on
P OWE R MOD ULE
Isolati on Voltage
Operati ng C ase Temp
-20C to +95C
95% RH Max (Non C ondensi ng)
Mounti ng Torque
1 Newton Metre
M4 S crew
0 to 40C Recommended Wi th Heatsi nk
95% RH Max (Non C ondensi ng)
S YS TE M E NV IRONME NT
A mbi ent Operati ng Temp
Reference Design Data Sheet (October 1998)
IRMDAC3
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© 1998 International Rectifier Printed in U.S.A. / Author: J.E.Parry
Data and specifications subject to change without notice.