TN1258
TN1258 is An innovative high power-IC manufactured by STMicroelectronics.
TN1258 Technical note
An innovative high power IC surface mount package family: Power SO-20 & Power SO-36 Power IC packaging from insertion to surface mounting
Introduction
An innovative, high power IC surface mount package family is introduced in this note. It is called Power SO family and has the Jedec registration MO-166. STMicroelectronics developed Power SO in order to answer the increasing demand of miniaturization and quality in power applications. Automotive, industrial, audio and tele markets will take advantage of the new package, by introducing the use of Surface Mount Technology in the production of power systems. Power SO-20 and Power SO-36 are the elements of the MO-166 family having 20 leads at 0.050 inch pitch (1.27 mm) and 36 leads at 0.026 inch pitch (0.65 mm) respectively. These packages are in mass production since 1995. This note is intended to pare the Power SO-20/36 with alternative surface mount solutions and to the existing Multiwatt package, the well known "double TO-220" developed by STMicroelectronics in late 70s. Data presented here demonstrates that Power SO-20 is the real successor of Multiwatt for surface mount applications and bees a milestone in power package technology with Power SO-36 as Multiwatt did 30 years ago.
Figure 1: Power SO-20
- Jedec registration MO-166
November 2017
Doc ID031323 Rev 1
GADG0711171203PS
1/33
.st.
Contents
Contents
1 Power devices and surface mounting 5
1.1 Intermediate solutions: insertion packages converted to SMT 5 1.2 New solutions: original STMicroelectronics packages with design-in SMT characteristics 6
2 Structure and characteristics of Power SO-20/36 11
2.1 High power structure and process (>20 W) 11 2.2 High current capability (10-20 A) 11...
