SCM1240M Series: High Voltage, High Current 3-Phase Motor Drivers

The SCM1240M inverter power module (IPM) devices provide a robust, highly-integrated solution for optimally controlling 3-phase motor power inverter systems and variable speed control systems used in energy-conserving designs to drive motors of residential and commercial appliances. These ICs take 85 to 253 VAC input voltage, and 10 to 30 A (continuous) output current. They can withstand voltages of up to 600 V (IGBT breakdown voltage).

The high current SCM1240M employs a new, small-footprint proprietary DIP package. The IC itself consists of all of the necessary power elements (six IGBTs), pre-drive ICs (three), and freewheeling diodes (six), needed to configure the main circuit of an inverter, as well as a bootstrap circuit (three bootstrap diodes and three boot resistors) as a high-side drive power supply. This enables the main circuit of the inverter to be configured with fewer external components than traditional designs.

Applications include residential white goods (home appliances) and commercial appliance motor control, such as:

  • Air conditioner compressor motor
  • Air conditioner fan motor
  • Refrigerator compressor motor
  • Washing machine main motor
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  • Each half-bridge circuit consists of a pre-driver circuit that is completely independent from the others
  • 10 to 30 A continuous output IPM in a small-footprint package
  • Protection against simultaneous high- and low-side turning on
  • Bootstrap diodes with series resistors for suppressing inrush current are incorporated
  • CMOS compatible input (3.3 to 5 V)
  • Designed to minimize simultaneous current through both high- and low-side IGBTs by optimizing gate drive resistors
  • Integrated Fast Recovery Diode (FRD) as freewheeling diode for each IGBT
  • UVLO protection with auto restart
  • Thermal shutdown (TSD) with auto restart
  • Fault (FO indicator) signal output at protection activation:
  • UVLO (low side only), OCP, STP, and TSD
  • Proprietary power DIP package
Packages

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Product Image Functional Block Diagram Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
SCM1241M 33-lead DIP -20°C to 85°C Yes View Data New Contact your
local sales rep
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SCM1243MF 33-lead DIP -20°C to 85°C Yes View Data New Contact your
local sales rep
Check Stock
SCM1245MF 33-lead DIP -20°C to 85°C Yes View Data New Contact your
local sales rep
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SCM1246MF 33-lead DIP -20°C to 85°C Yes View Data New Contact your
local sales rep
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