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TCA9544A Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TCA9544A
Description  Low Voltage 4-Channel I2C and SMBus Multiplexer With Interrupt Logic
Download  29 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

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TCA9544A
SCPS209A – MAY 2014 – REVISED MAY 2014
www.ti.com
7 Specifications
7.1 Absolute Maximum Ratings
(1)
over operating free-air temperature (unless otherwise noted)
MIN
MAX
UNIT
VCC
Supply voltage
–0.5
7
V
VI
Input voltage(2)
–0.5
7
V
II
Input current
±20
mA
IO
Output current
±25
mA
Continuous current through VCC
±100
mA
Continuous current through GND
±100
mA
Ptot
Total power dissipation
400
mW
TA
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.
7.2 Handling Ratings
MIN
MAX
UNIT
Tstg
Storage temperature range
–65
150
°C
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1)
–4000
4000
V
V(ESD)
Electrostatic discharge
Charged device model (CDM), per JEDEC specification JESD22-C101,
–1500
1500
V
all pins(2)
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
(1)
MIN
MAX
UNIT
VCC
Supply voltage
1.65
5.5
V
SCL, SDA
0.7 × VCC
6
VIH
High-level input voltage
V
A2–A0, INT3–INT0
0.7 × VCC
VCC + 0.5
SCL, SDA
–0.5
0.3 × VCC
VIL
Low-level input voltage
V
A2–A0, INT3–INT0
–0.5
0.3 × VCC
TA
Operating free-air temperature
–40
85
°C
(1)
All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
7.4 Thermal Information
(1)
over operating free-air temperature range (unless otherwise noted)
TCA9544A
THERMAL METRIC(1)
PW
UNIT
20 PIN
RθJA
Junction-to-ambient thermal resistance
118.2
RθJCtop
Junction-to-case (top) thermal resistance
51.4
RθJB
Junction-to-board thermal resistance
69.3
°C/W
ψJT
Junction-to-top characterization parameter
7.7
ψJB
Junction-to-board characterization parameter
68.8
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
4
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