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UCC2946PWTRG4 - Texas Instruments

Description: Supervisory Circuits Mcrprcsr Supervisor w/Watchdog Timer

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UCC2946PWTRG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0008A
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UCC2946PWTRG4 - Texas Instruments  - 3D model - Small Outline Packages - PW0008A
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UCC2946PWTRG4 Details

  • Manufacturer Part Number:

    UCC2946PWTRG4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, TSSOP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N

  • 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

  • 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

UCC2946PWTRG4 Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLUA365, which includes guidelines for component placement, trace routing, and grounding to minimize EMI.
  • The input capacitor should be chosen based on the input voltage ripple requirement, output current, and operating frequency. A general guideline is to use a capacitor with a capacitance value of at least 10uF and a voltage rating of 1.5 to 2 times the input voltage.
  • The maximum ambient temperature rating for the UCC2946PWTRG4 is 85°C, but it can be derated to 70°C for high-reliability applications.
  • No, the UCC2946PWTRG4 is designed for input voltages up to 24V. For high-voltage applications, consider using a different device such as the UCC2947 or UCC2948, which can handle input voltages up to 40V or 60V respectively.
  • Texas Instruments provides a troubleshooting guide in the application note SLUA366, which includes steps to identify and resolve common issues with the UCC2946PWTRG4, including output voltage instability, overheating, and input voltage undershoot.

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UCC2946PWTRG4 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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Part Image UCC2946PWTR Texas Instruments

Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +1.235V, BICMOS, PDSO8

Part Image UCC3946PW Texas Instruments

Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +1.235V, BICMOS, PDSO8

Part Image UCC2946PWG4 Texas Instruments

Voltage Supervisor/Reset IC, Adjustable, 1 Channel, +1.235V, BICMOS, PDSO8