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TCA9544A Fiches technique(PDF) 4 Page - Texas Instruments |
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TCA9544A Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 29 page 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 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: TCA9544A |
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