50
Review:
The hFE specification of MJL4281AG used in the example is minimum 50 at 8 A and
5 V collector measurement condition. The extracted hFE is 74.9 and it exceeds the
minimum specification limit. The extracted Vbe(on) parameter at the same condition
is 985 mV and it is cleared maximum 1.5 V specification limit.
A`. Measurement Procedure: hFE_Vbe-Ic Application Test,
- Starting from pre-defined test setup of My favorite Setup
This test approach starts measurements by using a pre-defined test setup saved in
My favorite Setup instead of starting from a scratch by using an Application Test
Library.
Setup and execute the test by following the next steps. The same instruction steps
are illustrated by the numbers on the "1`. Starting from Application Test Library"
side of figure 3-7.
Step 1. Click the Preset group of My Favorite Setup.
Step 2. Select Example_AT preset group.
Step 3. Select "hFE_Vbe-Ic" (Click the hFE_Vbe-Ic).
Step 4. Click "Recall" button.
Then go to step 5 of "Starting from Application Test Library" above, and continue by
following the test step numbers.
Marker for hFE and Vbe
Marker readings
Extracted parameters
7 98
Figure 3-8. hFE_Vbe-Ic application test data example
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