MC33154

11

MOTOROLA ANALOG IC DEVICE DATA

from the blanking pin to VEE. The stray capacitance on the

blanking pin provides a very small level of blanking if left

open.

The blanking pin should not be grounded when using

current sensing. That would disable the overcurrent sense.

The blanking pin should never be tied high. That would short

out the internal IC clamp transistor.

Figure 33. Sense IGBT Application

7

4

3

2

1

5

8

6

Fault

Input

Desat/

Blank

Output

Sense

Gnd

VEE

VCC

MC33154

18 V

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