AN3338 datasheet(1/72 Pages) STMICROELECTRONICS

Part #	AN3338

Description	In recent years the variable speed motor control market has required high performance

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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March 2015

Doc ID 18441 Rev 4

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72

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.

www.st.com

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