Application Note
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2019-04-01
AN2018-13
IM393 Application note
IM393 IPM Technical Description
About this document
Scope and purpose
The scope of this application note is to describe the IM393 product family and the basic requirements for
operating the products in a recommended mode. This includes integrated components, such as IGBT,
bootstrap functionality or gate drive IC, as well as the design of the necessary external circuitry, interfacing and
application use.
Intended audience
Power electronics engineers who want to design reliable and efficient motor drive application with IM393 IPM
family.
Table of contents
About this document ....................................................................................................................... 1
Table of contents ............................................................................................................................ 1
1
Introduction .......................................................................................................................... 3
1.1
Product line-up ........................................................................................................................................ 4
1.2
Nomenclature .......................................................................................................................................... 5
2
Internal components and package technology .......................................................................... 6
2.1
Power transistor and diode technology ................................................................................................. 6
2.2
Control IC – Six-channel gate driver IC ................................................................................................... 6
2.3
Thermistor ............................................................................................................................................... 7
2.4
Package technology ................................................................................................................................ 8
3
Product overview and pin description ...................................................................................... 9
3.1
Internal circuit and features ................................................................................................................... 9
3.2
Maximum electrical rating .................................................................................................................... 10
3.3
Description of the input and output pins ............................................................................................. 10
3.4
Outline drawings ................................................................................................................................... 15
4
Interface circuit and layout guide ........................................................................................... 17
4.1
Input/output signal connection ............................................................................................................ 17
4.2
Input/output signal connection ............................................................................................................ 19
4.3
Recommended circuit current of power supply .................................................................................. 20
4.4
Recommended layout for over-current protection (OCP) and short-circuit protection (SCP)
functions ................................................................................................................................................ 21
4.5
Recommended wiring of shunt resistor and snubber capacitor ......................................................... 21
4.6
Pin and screw hole coordinates for IM393-XX footprint ...................................................................... 23
5
Function and protection circuit ............................................................................................... 25
5.1
Over-current protection ........................................................................................................................ 25
5.1.1
Timing chart of over-current protection (OCP) ............................................................................... 25
5.1.2
Selecting current-sensing shunt resistor ........................................................................................ 26
5.1.3
Delay time ......................................................................................................................................... 27