CHAPTER 22 ELECTRICAL SPECIFICATIONS (TARGET VALUES) ((A2) grade product)
User’s Manual U17446EJ3V1UD
351
(A2) grade product T
A
=
−
40 to +125
°
C
Note 2.
This varies depending on the allowable total loss (see the figure below).
−
40
0
+40
+80
+85
Temperature [˚C]
Total loss P
T
[mW]
+120
50
100
150
120
+125
110
Use the following formula to perform design such that the sum of the power consumption of the device is
less than or equal to the total loss P
T
(use at 80% or less of the rated value is recommended).
•
Total power consumption = V
DD
×
{I
DD
−
∑
I
OH
} +
∑
{(V
DD
−
V
OH
)
×
I
OH
} +
∑
(V
OL
×
I
OL
)
When guaranteeing the internal pull-up resistor, use the following formula to calculate its power
consumption, and add the result to the result above.
•
Power consumption of internal pull-up resistor =
Σ
(V
DD
/R
PU
×
V
DD
)
<R>
Содержание 78K0S/KB1+
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