Datasheet
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Absolute Maximum Ratings
(1)
Recommended Operating Conditions
(1)
PCA9544A
4-CHANNEL I
2
C AND SMBus MULTIPLEXER
WITH INTERRUPT LOGIC
SCPS146D – OCTOBER 2005 – REVISED FEBRUARY 2008
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
CC
Supply voltage range – 0.5 7 V
V
I
Input voltage range
(2)
– 0.5 7 V
I
I
Input current ± 20 mA
I
O
Output current ± 25 mA
Continuous current through V
CC
± 100 mA
Continuous current through GND ± 100 mA
DGV package
(3)
92
DW package
(3)
58
GQN package
(3)
78
θ
JA
Package thermal impedance ° C/W
PW package
(3)
83
RGW package
(4)
TBD
RGY package
(4)
37
P
tot
Total power dissipation 400 mW
T
stg
Storage temperature range – 65 150 ° C
T
A
Operating free-air temperature range – 40 85 ° C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
(4) The package thermal impedance is calculated in accordance with JESD 51-5.
MIN MAX UNIT
V
CC
Supply voltage 2.3 5.5 V
SCL, SDA 0.7 × V
CC
6
V
IH
High-level input voltage V
A2 – A0, INT3– INT0 0.7 × V
CC
V
CC
+ 0.5
SCL, SDA – 0.5 0.3 × V
CC
V
IL
Low-level input voltage V
A2 – A0, INT3– INT0 – 0.5 0.3 × V
CC
T
A
Operating free-air temperature – 40 85 ° C
(1) All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
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