AN3338 Datasheet, PDF (1/72 Pages) STMicroelectronics – In recent years the variable speed motor control market has required high performance

AN3338
Application note
SLLIMM™
small low-loss intelligent molded module
By Carmelo Parisi and Giovanni Tomasello
Introduction
In recent years the variable speed motor control market has required high performance
solutions able to satisfy the increasing energy saving requirements, compactness, reliability,
and system costs in home appliances, such as washing machines, dish washers,
refrigerators, air conditioning compressor drives, and in low power industrial applications,
such as sewing machines, pumps, tools, etc. To meet these market needs,
STMicroelectronics has developed a new family of compact, high efficiency, dual-in-line
intelligent power modules, with optional extra features, called small low-loss intelligent
molded module (SLLIMM™).
The SLLIMM product family combines optimized silicon chips, integrated in three main
inverter blocks:
• power stage
– six short-circuit rugged IGBTs
– six freewheeling diodes
• driving network
– three high voltage gate drivers
– discrete gate resistors
– three bootstrap diodes
• protection and optional features
– op amps for advanced current sensing
– comparators for fault protection against overcurrent and short-circuit
– NTC sensor for temperature control
– smart shutdown function
– dead time, interlocking function and undervoltage lockout.
Thanks to the state of art DBC mounting technology, the fully isolated SLLIMM package
(SDIP) offers extremely low thermal resistance with optimum cost-effectiveness and quality
level.
Compared to discrete-based inverters, including power devices, and driver and protection
circuits, the SLLIMM family provides a high integrated level that means simplified circuit
design, reduced component count, smaller weight, and high reliability.
The aim of this application note is to provide a detailed description of SLLIMM products,
providing guidelines to motor drive designers for an efficient, reliable, and fast design when
using the new ST SLLIMM family.
March 2015
Doc ID 18441 Rev 4
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www.st.com
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