DM54123W Fairchild Semiconductor, DM54123W Datasheet - Page 5

• Manufacturer Part Number: DM54123W
• Manufacturer: Fairchild Semiconductor

Specifications of DM54123W

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Operating Rules
6. The retriggerable pulse width is calculated as shown be-
The retriggered pulse width is equal to the pulse width plus a
delay time period ( Figure 4 ).
7. Under any operating condition C
low:
as close to the one-shot device pins as possible to mini-
T = T
W
+ t
PLH
FIGURE 4.
= Kx R
(Continued)
X
x C
X
and R
X
+ t
PLH
X
must be kept
DS006539-6
5
8. V
Note: For further detailed device characteristics and output performance
mize stray capacitance, to reduce noise pick-up, and to
reduce I x R and Ldi/dt voltage developed along their
connecting paths. If the lead length from C
and (7) or pins (14) and (15) is greater than 3 cm, for ex-
ample, the output pulse width might be quite different
from values predicted from the appropriate equations. A
non-inductive and low capacitive path is necessary to
ensure complete discharge of C
eration so that the output pulse width will be accurate.
high-frequency standards and practices so that switch-
ing transients on the V
cause interaction between one-shots. A 0.01 µF to
0.10 µF bypass capacitor (disk ceramic or monolithic
type) from V
Furthermore, the bypass capacitor should be located as
close to the V
please refer to the NSC one-shot application note, AN-366.
CC
and ground wiring should conform to good
CC
CC
to ground is necessary on each device.
pin as space permits.
CC
and ground return leads do not
X
in each cycle of its op-
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X
to pins (6)