IRF IRPT1058C Power module for 0.75 hp motor drive Datasheet

PD 6.114
IRPT1058A
IRPT1058A
PRELIMINARY
™
Power Module for 0.75 hp Motor Drives
· 0.75 hp (0.56 kW) power output
Industrial rating at 150% overload for 1 minute
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180-240V AC single-phase input, 50/60 Hz
Single-phase rectifier bridge
3-phase, short circuit rated, ultrafast IGBT inverter
HEXFRED ultrafast soft recovery freewheeling diodes
Low inductance (current sense) shunts in positive
and negative DC rail
NTC temperature sensor
Pin-to-baseplate isolation 2500V rms
Easy-to-mount two-screw package
Case temperature range -25°C to 125°C operational
Figure 1. IRPT1058A Power Module
IRPT1058C
180-240V
single-phase input
IRPT1058A
Power
Module
IRPT1058D
Driver-Plus
Board
PWM
generator
PWM
variable
frequency
output
AC
motor
feedback
(non-isolated)
feedback
processing
keyboard
Figure 2. The IRPT1058C
control system
within a motor
page 1
IRPT1058A
System Description
The IRPT1058A Power Module
The IRPT1058A Power Module, shown in figure 1, is a chip
and wire epoxy encapsulated module. It houses input rectifiers,
output inverter, current sense shunts and NTC thermistor. The
single-phase input bridge rectifiers are rated at 800V. The
inverter section employs 600V, short circuit rated, ultrafast
IGBTs and ultrafast freewheeling diodes. Current sensing is
achieved through 75 mΩ low inductance shunts provided in the
positive and negative DC bus rail. The NTC thermistor provides
temperature sensing capability. The lead spacing on the power
module meets UL840 pollution level 3 requirements.
The power circuit and layout within the module are carefully
designed to minimize inductance in the power path, to reduce
noise during inverter operation and to improve the inverter
efficiency. The Driver-Plus Board required to run the inverter
can be soldered to the power module pins, thus minimizing
assembly and alignment. The power module is designed to be
mounted to a heat sink with two screw mount positions, in order
to insure good thermal contact between the module substrate and
the heat sink.
The IRPT1058A
(Figure 3) provides the
complete power conversion function for a 0.75 hp (0.56 kW)
variable voltage, variable frequency AC motor controller. The
combines the Power Module (IRPT1058A)
with a Driver-Plus Board (IRPT1058D).
Figure 3. IRPT1058C
page 2
IRPT1058A
Specifications
PARAMETERS
Input Power
VALUES
Voltage
220V AC, -15%, +10%, single-phase
Frequency
50/60 Hz
Current
7.6A rms @ nominal output
IFSM
150A
CONDITIONS
TA = 40°C, RthSA = 1.69°C/W
10ms half-cycle, non-repetitive surge
Output Power
Voltage
0 - 230V rms
Nominal motor hp (kW)
0.75 hp (0.56 kW) nominal full load power
Nominal motor current
150% overload for 1 minute
3.3A nominal full load power
4.95A 150% overload for 1 minute
defined by external PWM control
Vin = 220V, fpwm = 4 kHz,
fo = 60 Hz,
TA = 40°C, RthSA = 1.69°C/W
DC Link
DC link voltage
425V maximum
Sensor
Temp. sense resistance
Current sense
50 kOhms ±5%
@ TNTC = 25°C
3.1kOhms ±10%
@ TNTC = 100°C
75mOhms ±5%
@ TSHUNT = 25°C
Protection
IGBT short circuit time
Recommended short circuit-
10µs
18A peak
DC bus = 425V, VGE = 15V, line to line short
shutdown current
Gate Drive
QG
34 nC (typical)
Recommended gate driver
IR2132J (see Figure 10)
@ VGE = 15V, refer Figure 5b
Module
Isolation voltage
2500V rms
Operating case temperature
-25°C to 125°C
Mounting torque
1 Nm
Storage temperature range
-40°C to 125°C
Soldering temperature for 10 sec. 260°C maximum
pin-to-baseplate, 60 Hz, 1 minute
95% RH max. (non-condensing)
M4 screw type
at the pins (.06" from case)
page 3
IRPT1058A
2.5
60
0.75 hp
(0.56 kW)
2
50
40
1.5
Power
150%
30
RthSA 150% load
(1 min.) 10-60 Hz
1
Power
100%
20
RthSA 150% load
(1 min.) down to 3 Hz
0.5
Total Power Dissipation (Watts)
Thermal Resistance (RthSA°C/W)
RthSA 100% Load
(continuous) 10-60 Hz
10
0
0
1
4
8
12
16
20
24
PWM Frequency (kHz) – (induction Motor Load)
Figure 4a. 0.75 hp/3.3A Output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
3.5
45
40
3
0.5 hp
(0.37 kW)
35
2.5
30
2
Power
150%
Power
100%
25
20
RthSA 150% load
(1 min.) 10-60 Hz
1.5
15
RthSA 150% load
(1 min.) down to 3 Hz
1
Total Power Dissipation (Watts)
Thermal Resistance (RthSA°C/W)
RthSA 100% Load
(continuous) 10-60 Hz
10
0.5
5
0
0
1
4
8
12
16
20
24
PWM Frequency (kHz) – (induction Motor Load)
Figure 4b. 0.5 hp/2.2A Output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
NOTE: For Figures 4a and 4b: Operating Conditions: Vin = 230Vrms, MI = 1.15, PF = 0.8, TA = 40°C, ZthSA limits ∆Tc rise
during 1 minute overload to 10°C
page 4
IRPT1058A
Figure 5a. Typical Capacitance vs
Collector-to-Emitter Voltage
Figure 5b. Typical Gate Charge vs
Gate-to-Emitter Voltage
Figure 5c. Typical Transfer Characteristics
Figure 6. Nominal R-T Characteristics of the
NTC Thermistor
page 5
IRPT1058A
Mounting Procedure
Functional Information
Mounting
Heat Sink Requirements
1. Connect the driver board and the IRPT1058A power
module.
2. Remove all particles and grit from the heat sink and power
substrate.
3. Spread a .004" to .005" layer of silicone grease on the heat
sink, covering the entire area that the power substrate will
occupy. Recommended heat sink flatners is .001 inch/inch and
Total Indicator Readout (TIR) of .003 inch below substrate.
4. Place the power substrate onto the heat sink with the
mounting holes aligned and press it firmly into the silicone
grease.
5. Place the 2 M4 mounting screws through the PCB and
power module and into the heat sink and tighten the screws to
1 Nm torque.
Figures 4a-4b show the thermal resistance of the heat sink
required for various output power levels and Pulse-WidthModulated (PWM) switching frequencies. Maximum total losses
of the unit are also shown. This data is based on the following
key operating conditions:
• The maximum continuous combined losses of the rectifier
and inverter occur at full pulse-width-modulation. These
maximum losses set the maximum continuous operating
temperature of the heat sink.
• The maximum combined losses of the rectifier and inverter
at full pulse-width-modulation under overload set the
incremental temperature rise of the heat sink during
overload.
• The minimum output frequency at which full load current
is to be delivered sets the peak IGBT junction temperature.
• At low output frequency, IGBT junction temperature tends
to follow the instantaneous fluctuations of the output
current. Thus, peak junction temperature rise increases as
output frequency decreases.
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Figure 7. Power Module Mounting Screw Sequence
Power Connections
The power module pin designation, function and other details
can be obtained from the package outline Figure 8 and circuit
diagram Figure 9. Single-phase input connections are made to
pins R and S and inverter output connections made to pins U, V
and W. Positive rectifier output and positive inverter bus are
brought out to pins RP and P respectively in order to provide DC
bus capacitor soft charging implementation option. The current
shunt terminals are connected to pins IS1, IS2 and IS3, IS4 on
the positive and negative DC rails respectively.
page 6
Over-Temperature Protection
Over-temperature can be detected using the NTC thermistor
included in the power module for thermal sensing. Protection
circuit that initiates a shutdown if the temperature of the IMS
substrate exceeds a set level can be implemented. The nominal
resistance vs. temperature characteristic of the thermistor is
given in Figure 6.
Voltage Rise During Braking
The motor will feed energy back to the DC link during
regenerative braking, forcing the bus voltage to rise above the
level defined by the input line voltage. Deceleration of the motor
must be controlled by appropriate PWM control to keep the DC
bus voltage within the rated maximum value.
IRPT1058A
IRPT1058A Mechanical Specifications
NOTE: Dimensions are in inches (millimeters)
Figure 8a. Package Outline and Mechanical Specifications
page 7
IRPT1058A
IRPT1058A Mechanical Specifications
.750 [19.05]
.950 [24.13]
.450 [11.43]
.550 [13.97]
.150 [3.81]
.250 [6.35]
.150 [3.81]
.050 [1.27]
.550 [13.97]
.450 [11.43]
ALL PIN COORDINATE DIMENSIONS ARE BASIC
.750 [19.05]
1.050 [26.67]
NOTE: Dimensions are in inches (millimeters)
RT1
RT2
N/C
E5
G5
E3
G3
E1
G1
RP
P
IS1
IS2
N
.875 [22.27]
PIN CENTER
W
PIN DIAGONAL
.037 – .034
[.940 – .864]
28X
1.050 [26.67]
.850 [21.59]
.650 [16.51]
E4
G4
E6
G6
N/C
V
U
.050 [1.27]
.000 [0.00]
.250 [6.35]
IS4
IS3
E2
G2
.350 [8.89]
N/C
.650 [16.51]
S
.850 [21.59]
PIN CENTER
.875 .[22.27]
R
.000 [0.00]
.010 M
A
28X [ .026 – .024)]
28X .040 [1.02]
MOUNTING SURFACE IN CLAMPED CONDITION
–A–
Figure 8b. Package Outline and Mechanical Specifications
page 8
IRPT1058A
Figure 9. Power Module Circuit Diagram
page 9
IRPT1058A
Figure 10. Recommended Gate Drive Circuit
page 10
IRPT1058A
Part Number Identification and Ordering Instructions
IRPT1058A Power Module
IRPT1058D Driver-Plus Board
Chip and wire epoxy encapsulated module with 800V
rectifiers, 600V short-circuit rated, ultra-fast IGBT inverter with
ultra-fast freewheeling diodes, temperature sensing NTC
thermistor and current-sensing low-inductance shunts.
Printed circuit board assembled with DC link capacitors.
NTC in-rush limiting thermistor, high-power terminal blocks,
surge suppression MOV, IGBT gate drivers, protection circuitry
and low power supply. The PCB is functionally tested with
standard power module to meet all system specifications.
IRPT1058C
Integrated Power Module (IRPT1058A) and Driver-Plus
Board (IRPT1058D) pre-assembled and tested to meet all system
specifications.
page 11
IRPT1058A
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, UK Tel: ++ 44 1883 732020
IR CANADA: 7321 Victoria Park Ave., Suite 201, Markham, Ontario L3R 2Z8, Tel: (905) 475 1897
IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg Tel: ++ 49 6172 96590
IR ITALY: Via Liguria 49, 10071 Borgaro, Torino Tel: ++ 39 11 451 0111
IR FAR EAST: 171 (K&H Bldg.), 3-30-4 Nishi-ikebukuro 3-Chome, Toshima-ku, Tokyo Japan Tel: 81 3 3983 0086
IR SOUTHEAST ASIA: 315 Outram Road, #10-02 Tan Boon Liat Building, Singapore 0316 Tel: 65 221 8371
http://www.irf.com/
Data and specifications subject to change without notice.
9/97
page 12
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