Datasheet
PCA9544A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 5 — 23 April 2014 13 of 31
NXP Semiconductors
PCA9544A
4-channel I
2
C-bus multiplexer with interrupt logic
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 6. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Voltages are referenced to ground (V
SS
= 0 V).
[1]
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
j(max)
maximum junction temperature
[1]
-125C
T
stg
storage temperature 60 +150 C
T
amb
ambient temperature operating 40 +85 C
Table 7. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction
to ambient
HVQFN20 package 32 C/W
SO20 package 90 C/W
TSSOP20 package 146 C/W