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AN3338 Datasheet(PDF) 3 Page - STMicroelectronics

Part # AN3338
Description  In recent years the variable speed motor control market has required high performance
PDF  72 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3338 Datasheet(HTML) 3 Page - STMicroelectronics

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Doc ID 18441 Rev 4
3/72
AN3338
Contents
72
4.1
Conduction power losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.2
Switching power losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.3
Thermal impedance overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.4
Power losses calculation example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5
Design and mounting guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1
Layout suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1.1
General suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.2
Mounting instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.2.1
Heatsink mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.2.2
Mounting torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.2.3
General handling precaution and storage notices . . . . . . . . . . . . . . . . . 68
6
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71



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