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UCC2946PW - Texas Instruments

Description: Texas Instruments UCC2946PW, Processor Supervisor 2.1 → 5.5 V, WDT, Reset Input, 8-Pin TSSOP

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UCC2946PW - Texas Instruments - PCB symbol
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PCB Footprints
UCC2946PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0008A
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3D Models
UCC2946PW - Texas Instruments - 3D model - Small Outline Packages - PW0008A
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UCC2946PW Details

  • Manufacturer Part Number:

    UCC2946PW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • 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:

    4.4 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 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:

    0.65 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +1.235V

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

    30

  • Width:

    3 mm

UCC2946PW Frequently Asked Questions (FAQs)

  • A good PCB layout for the UCC2946PW involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the high-current paths. TI provides a recommended layout in the datasheet and application notes.
  • Choose capacitors with low ESR, high ripple current rating, and a voltage rating that exceeds the maximum input voltage. X5R or X7R ceramic capacitors or film capacitors are good options. The datasheet provides guidelines for capacitor selection.
  • The maximum ambient temperature for the UCC2946PW is 85°C. However, the device can operate up to 150°C junction temperature. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • Yes, the UCC2946PW can be used in a synchronous rectification topology. However, this requires careful design and layout to ensure proper operation and minimize losses. TI provides application notes and reference designs for synchronous rectification.
  • To troubleshoot issues with the UCC2946PW, start by checking the PCB layout, component selection, and soldering quality. Use an oscilloscope to measure the input and output waveforms, and check for signs of oscillation or instability. Consult the datasheet and application notes for troubleshooting guidelines.

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UCC2946PW Overview

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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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