IRPT1057A

PD 6.112 IRPT1057A PRELIMINARY IRPT1057A ™ Power Module for 0.75 hp Motor Drives · 0.75 hp (0.56kW) 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 www.DataSheet4U.com · 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. IRPT1057A Power Module IRPT1057C IRPT1057A Power Module IRPT1057D Driver-Plus Board PWM variable frequency output 180-240V 3-phase input feedback (non-isolated) PWM generator feedback processing keyboard Figure 2. The power module and motor control system within a page 1 IRPT1057A System Description The IRPT1057A Power Module The IRPT1057A 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 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 lev...