M5295AL/AP/AFP

REJ03D0780-0200 Rev.2.00 Jun 15, 2007

Page 5 of 12

1. Pin(2) (TC pin) charge time and discharge time

When input to WD pin is abnormal, TC pin output waveform is as shown below:

0V

TC

4

5

2

5

(discharge time)

1000

– 1

4

⋅

1000

– 3

2

⋅

2

C

Figure 2

2. Pin (1) (WD pin) input frequency, input pulse width, charge time and discharge time

When input to WD pin is normal, TC pin output waveform is as shown below:

(charge time)

(discharge time)

1000

+ 1) x – 5

(

3

5 – x

1000

– 3

2

⋅

4V

Pin (2)

2V

xV

Input

Figure 3