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TPS2045DG4 - Texas Instruments

Description: Power Switch ICs - Power Distribution .345A 2.7-5.5V Hi

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TPS2045DG4 Details

  • Manufacturer Part Number:

    TPS2045DG4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, MS-012AA, SOIC-8

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1999-04-08

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    Current Limit:0.525A

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    LOAD SWITCH

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    0.1 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.7 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +2V

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

TPS2045DG4 Frequently Asked Questions (FAQs)

  • The maximum current limit for the TPS2045DG4 is 4A, but it's recommended to limit the current to 3.5A for continuous operation to ensure reliable performance and prevent overheating.
  • To calculate the power dissipation, use the formula: Pd = (Vin - Vout) x Iout x Rds(on). Rds(on) is the on-state resistance, which is typically around 0.04 ohms for the TPS2045DG4. Make sure to check the datasheet for the specific Rds(on) value and calculate the power dissipation accordingly.
  • The EN pin is used to enable or disable the TPS2045DG4. When the EN pin is high (logic level 1), the device is enabled, and when it's low (logic level 0), the device is disabled. You can use the EN pin to control the power supply to your load or to implement power-saving features in your design.
  • Choose an input capacitor with a voltage rating that exceeds the maximum input voltage, and a capacitance value that is at least 10uF. A low-ESR capacitor (e.g., ceramic or film capacitor) is recommended to minimize voltage ripple and ensure stable operation.
  • The minimum input voltage required for the TPS2045DG4 to operate is 2.7V. However, the device can operate down to 2.5V with reduced performance and efficiency.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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