FOR AUTOMOTIVE 125°C OPERATION VOLTAGE DETECTOR BUILT-IN DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING)

S-19101xxxA Series

11

2. Delay circuit

exceeds the release voltage (

Table 7 Delay Coefficient

Operation

Temperature

Delay Coefficient

Min.

Typ.

Max.

Ta =

+125°C

1.96

3.50

5.15

Ta =

+105°C

2.58

3.70

5.40

Ta =

+25°C

4.70

5.47

6.24

Ta =

−40°C

5.64

8.40

12.01

Table 8 Delay Time

Operation Temperature

Min.

Typ.

Max.

Ta =

−40°C to +125°C

0.01 ms

0.10 ms

0.80 ms

Caution 1.

When the CD pin is open, a double pulse shown in Figure 14 may appear at release.

To avoid the double pulse, attach 100 pF or more capacitor to the CD pin. Do not apply

voltage to the CD pin from the exterior.

Time

Figure 14

2.

Mounted board layout should be made in such a way that no current flows into or flows from

the CD pin since the impedance of the CD pin is high, otherwise correct delay time cannot be

provided.

3.

be ignored against the built-in constant current value. Leakage current causes deviation in

delay time. When the leakage current is larger than the built-in constant current, no release

takes place.