Datasheet
PCA9540B All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 6 — 5 May 2014 10 of 27
NXP Semiconductors
PCA9540B
2-channel I
2
C-bus multiplexer
9. Limiting values
[1] The performance capability of a high-performance integrated circuit in conjunction with its thermal
environment can create junction temperatures which are detrimental to reliability. The maximum junction
temperature of this integrated circuit should not exceed 125 C.
10. Thermal characteristics
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Voltages are referenced to ground (V
SS
= 0 V).
Symbol Parameter Conditions Min Max Unit
V
DD
supply voltage 0.5 +7.0 V
V
I
input voltage 0.5 +7.0 V
I
I
input current - 20 mA
I
O
output current - 25 mA
I
DD
supply current - 100 mA
I
SS
ground supply current - 100 mA
P
tot
total power dissipation - 400 mW
T
stg
storage temperature 60 +150 C
T
amb
ambient temperature operating 40 +85 C
T
j(max)
maximum junction
temperature
[1]
-125C
Table 6. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction
to ambient
SO8 package 158 C/W
TSSOP8 package 120 C/W