xc7set14 NXP Semiconductors, xc7set14 Datasheet - Page 8

• Manufacturer Part Number: xc7set14
• Description: Inverting Schmitt Trigger
• Manufacturer: NXP Semiconductors

NXP Semiconductors
14. Application information
XC7SET14_1
Product data sheet
Fig 11. Average additional I
Linear change of V
The slow input rise and fall times cause additional power dissipation, which can be
calculated using the following formula:
P
Average additional I
Figure
For XC7SET14 used in relaxation oscillator circuit, see
Note to the application information:
1. All values given are typical unless otherwise specified.
add
P
f
t
t
I
i
r
f
between 0.1V
I
add
= input frequency (MHz);
= input fall time (ns); 90 % to 10 %;
= input rise time (ns); 10 % to 90 %;
CC(AV)
= f
CC
= additional power dissipation ( W);
11.
i
I
CC(AV)
( A)
(t
= average additional supply current ( A).
r
200
150
100
50
0
CC
0
I
to 0.9V
CC(AV)
CC
CC
Rev. 01 — 31 August 2009
differs with positive or negative input transitions, as shown in
+ t
f
2
I
CC(AV)
)
positive-going
4
V
negative-going
edge
CC
V
edge
CC
where:
(V)
mna058
6
Figure
12.
Inverting Schmitt trigger
XC7SET14
© NXP B.V. 2009. All rights reserved.
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