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UCC2946D - Texas Instruments

Description: Texas Instruments UCC2946D, Processor Supervisor 2.1 → 5.5 V, WDT, Reset Input, 8-Pin SOIC

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UCC2946D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - SOIC-D-0008
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UCC2946D - Texas Instruments  - 3D model - Small Outline Packages - SOIC-D-0008
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UCC2946D Details

  • Manufacturer Part Number:

    UCC2946D

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    RESET THRESHOLD VOLTAGE IS 1.235V

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    VOLTAGE SUPERVISOR/RESET IC

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    2

  • 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 Equivalence Code:

    SOP8,.25

  • 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):

    0.018 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.1 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:

    +1.235V

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

    30

  • Width:

    3.9 mm

UCC2946D Frequently Asked Questions (FAQs)

  • The maximum voltage rating for the UCC2946D is 450V, but it's recommended to operate it within 350V to ensure reliable operation.
  • To ensure proper biasing, connect the VCC pin to a stable 5V to 15V power supply, and decouple it with a 0.1uF capacitor to ground. Also, ensure the input voltage (VIN) is within the recommended range.
  • The EN pin is an active-high enable input that allows the UCC2946D to be shut down or enabled. Connect it to a logic high (e.g., 5V) to enable the device, or a logic low (e.g., GND) to shut it down.
  • The values of R1 and R2 depend on the desired output voltage and the input voltage range. A good starting point is to use the values recommended in the datasheet (R1 = 2.2kΩ and R2 = 1kΩ), and then adjust them based on your specific application requirements.
  • The UCC2946D can deliver up to 1A of output current, but it's recommended to operate it within 500mA to ensure reliable operation and minimize thermal stress.

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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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