Nexperia
HEF4047B
Monostable/astable multivibrator
HEF4047B All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2017. All rights reserved.
Product data sheet Rev. 6 — 17 March 2017
16 / 22
Monostable mode:
(10)
Because the power dissipation does not depend on R
t
, a design for minimum power
dissipation would be a small value of C
t
. The value of R would depend on the desired
period (within the limitations discussed previously). Typical power consumption in astable
mode is shown in Figure 12, Figure 13 and Figure 14.
aaa-013291
10
3
10
2
10
4
10
5
P
(µW)
10
f (Hz)
1 10
6
10
5
10
4
10 10
3
10
2
(1) (2) (3) (4) (5)
V
DD
= 5 V.
(1) C
t
= 100 nF.
(2) C
t
= 10 nF.
(3) C
t
= 1 nF.
(4) C
t
= 100 pF.
(5) C
t
= 10 pF.
Figure 12. Power consumption as a function of the output frequency at O or O; astable mode.
