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IRPT1053A

Power Module for 1 hp Motor Drives

International Rectifier 

IRPT1053A

The IRPT1053A Power Module PowIRtrain and Design Kit

The IRPT1053A 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 3-

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 45mΩ low inductance shunts provided in the positive

and negative DC bus rail. The NTC thermistor provides tempera-

ture 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 effi-

ciency. 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 IRPT1053A PowIRtrain (Figure 3) provides the complete

power conversion function for a 1hp (0.75kW) variable voltage,

variable frequency AC motor controller. The PowIRtrain com-

bines the Power Module (IRPT1053A) with a Driver-Plus Board

(IRPT1053D). The PowIRtrain Design Kit, IRPT1053E in-

cludes the following:

• Complete PowIRtrainintegrated power stage

• Specification and operating instructions

• Billofmaterials

• Electrical schematic

• Mechanical layout for Driver-Plus Board

• Software transferrable files for easy design integration

• Application information and layout considerations

page 2

Figure 3. IRPT1053C PowIRtrain

www.irf.com

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