MJH16006A

8

Motorola Bipolar Power Transistor Device Data

SWITCHMODE DESIGN CONSIDERATIONS (Cont.)

5. RBSOA —

Reverse Biased Safe Operating Area has a first order de-

pendency on circuit configuration and drive parameters. The

RBSOA curves in this data sheet are valid only for the condi-

tions specified. For a comparison of RBSOA results in sever-

al types of circuits (see Application Note AN951).

6. DESIGN SAMPLES —

Transistor parameters tend to vary much more from wafer

lot to wafer lot, over long periods of time, than from one de-

vice to the next in the same wafer lot. For design evaluation

it is advisable to use transistors from several different date

codes.

7. BAKER CLAMPS —

Many unanticipated pitfalls can be avoided by using Baker

Clamps. MUR105 and MUR1100 diodes are recommended

for base drives less than 1 amp. Similarly, MUR405 and

MUR4100 types are well–suited for higher drive require-

ments (see Article Reprint AR131).