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HEF4047B View Datasheet(PDF) - NXP Semiconductors.

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HEF4047B
NXP
NXP Semiconductors. NXP
HEF4047B Datasheet PDF : 20 Pages
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NXP Semiconductors
HEF4047B
Monostable/astable multivibrator
11.2 Monostable mode design information
The following analysis presents worst case variations from unit-to-unit as a function of
transfer voltage (VTR) shift for one-shot (monostable) operation.
75,**(5
SLQ
26&,//$725
287387 SLQ
2287387
SLQ
W
W
W0
Fig 9. Monostable waveforms.
W
W
W0
DDD
t1'
=
RtCt
In ---V----T---R---
2VDD
(4)
tM = t1' + t2
(5)
tM
=
RtCt
In -------V----T--R--------V----D----D---------V----T---R-------
2VDD VTR2VDD
(6)
, where tM = monostable mode pulse width; see table Table 11.
Table 11. Values for monostable mode pulse width (tM)
VTR
tM
Min
Typ
Max
Min
Typ[1]
Max
VDD = 5 V or 10 V
VDD = 15 V
0.3 VDD 0.5 VDD 0.7 VDD
4V
0.5 VDD
11 V
2.78 RtCt
2.88 RtCt
2.48 RtCt
2.48 RtCt
2.52 RtCt
2.56 RtCt
[1] In the astable mode, the first positive half cycle has a duration of tM: succeeding durations are 12 tA.
Therefore if tM = 2.48 RtCt is used, the maximum variation is (+12%; 0.0%) at 10 V.
HEF4047B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 16 December 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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