HA16117F Series

13

6. When P-RUN frequency fluctuates (1)

H

L

H

L

H

L

H

L

H

L

H

L

H

L

H

L

0 V

1.6 V

3.2 V

5 V

0 V

0.9 V

3.6 V

5 V

P-RUN

28 ms

Q

A

WD

B

C

20 ms

2 ms

If there is a double-pulse in P-RUN, the WD filter duty will be decreased and RES will be

output, as shown in the figure below, for example. In this case, the condition for non-output of

the RES signal is a value of 3 or less for the ratio of P-RUN pulse interval minimum value to

ratio is 3.

RES

Q