Document
PD 6.099 IRPT2056A
PRELIMINARY
IRPT2056A
™
Power Module for 3 hp Motor Drives
· 3 hp (2.2 kW) power output
Industrial rating at 150% overload for 1 minute
· · · · · · · · · ·
180-240V AC input, 50/60 Hz 3-phase rectifier bridge 3-phase, short circuit rated, ultrafast IGBT inverter HEXFRED ultrafast soft recovery-freewheeling diodes Brake IGBT and diode 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. IRPT2056A Power Module
IRPT2056C
IRPT 2056A Power Module IRPT 2056D Driver-Plus Board PWM variable frequency output
180-240V 3-phase input
feedback (non-isolated)
PWM generator
Figure 2. The power module and motor control system
within a
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IRPT2056A
System Description
Power Module
The IRPT2056A 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 3phase input bridge rectifiers are rated at 800V. The brake circuit uses 600V IGBT and freewheeling diode. The inverter section employs 600V, short circuit rated, ultrafast IGBT's and ultrafast freewheeling diodes. Current sensing is achieved through 25 mΩ low inductance shunts provided in the positive and negative DC bus rail. The NTC thermistors provide 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.
and Design Kit
The IRPT2056C (Figure 3) provides the complete power conversion function for a 3 hp (2.2 kW) variable voltage, variable frequency AC motor controller. The combines the Power Module (IRPT2056A) with a Driver-Plus Board (IRPT2056D). The Design Kit, IRPT2056E includes the following: • Complete integrated power stage • Specification and operating instructions • Bill of materials • Electrical schematic • Mechanical layout of the Driver-Plus Board • Software transferrable file for easy design integration • Application information and layout considerations
Figure 3. IRPT2056C
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IRPT2056A
Specifications
PARAMETERS Input Power
Voltage Frequency Current IFSM
VALUES
220V AC, -15%, +10%, 3-phase 50/60 Hz 15.4A rms @ nominal output 400A 0-230V rms 3 hp (2.2 kW) nominal full load power 150% overload for 1 minute 11A nominal full load power 16.5A 150% overload for 1 minute 400V maximum 20A 50 kOhms ± 5% 3.1kOhms ± 10% 25mOhms ± 5% 10 µs 70A peak
CONDITIONS
TA = 40°C, RthSA = 0.42°C/W 10ms half-cycle, non-repetitive surge defined by external PWM control V in = 230V AC, fpwm = 4kHz, fo = 60 Hz, TA = 40°C, RthSA = 0.42°C/W
Output Power
Voltage Nominal motor hp (kW) Nominal motor current
DC Link
DC link voltage
Brake
Current
Sensor
Temp. sense resistance Current sense @ TNTC = 25°C @ TNTC = 100°C @ TSHUNT = 25°C DC bus = 400V, VGE = 15V, line to line short Recommended short circuitshutdown current
Protection
IGBT short circuit time
Gate Drive
QG 120 nC (typical) @ VGE = 15V, refer figure 5b
Recommended gate driver
IR2133 (see Figure 10)
2500V rms -25°C to 125°C 1 Nm -40°C to 125°C at the pins (.06" from case) pin-to-baseplate, 60 Hz, 1 minute 95% RH max. (non-condensing) M4 screw type
Module
Isolation voltage Operating case temperature Mounting torque Storage temperature range
Soldering temperature for 10 sec. 260°C maximum
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IRPT2056A
0.6
Thermal Resistance (R thSA°C/W)
300 RthSA 100% Load Continuous 10-60 Hz Power 150% 3 hp (2.2 kW) 200
0.4
0.3 Power 100% 0.2 RthSA 150% Load (1 min.) Down to 3 Hz 0.1 RthSA 150% Load 1 min.)10-60 Hz
150
100
50
0
1
4
8
12
16
20
24
0
PWM Frequency (kHz) – (Induction Motor Load)
Figure 4a. 3hp/11A output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
0.9 0.8
Thermal Resistance (R thSA°C/W)
RthSA 100% Load Continuous 10-60 Hz 2 hp (1.5 kW)
200 180 160 140 120
Total Power Dissipation (Watts)
0.7 0.6 0.5
Power 150%
100 0.4 0.3 0.2 0.1 0 Power 100% 80 RthSA 150% Load (1 min.) Down to 3 Hz RthSA 150% Load (1 min.) 10-60 Hz 60 40 20 0
1
4
8
12
16
20
24
PWM Frequency (kHz) – (Induction Motor Load)
Figure 4b. 2hp/8A output Heat Sink Thermal Resistance and Power Dissipation vs. PWM Frequency
NOTE: For Figures 4a and 4b: Operating Conditions: V in = 230V rms, MI =1.15, PF = 0.8, TA = 40 °C, Tj < 145°C, Ts < 95°C, ZthSA limits ∆ Tc during 1 minute overload to 10°C page 4
Total Power Dissipation (Watts)
0.5
250
.