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UC3842D8G4 - Texas Instruments

Description: Boost, Buck, Buck-Boost, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 8-SOIC

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UC3842D8G4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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UC3842D8G4 - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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UC3842D8G4 Details

  • Manufacturer Part Number:

    UC3842D8G4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    11.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Min:

    17 V

  • Output Voltage-Nom:

    5 V

  • 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):

    17 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC3842D8G4 Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for UC3842D8G4 is 12V to 28V, with a maximum rating of 30V.
  • The switching frequency of UC3842D8G4 can be calculated using the formula: f = 1 / (RT * CT), where RT is the resistance of the timing resistor and CT is the capacitance of the timing capacitor.
  • The maximum duty cycle of UC3842D8G4 is 50%, but it's recommended to keep it below 45% to ensure stable operation.
  • You can use a voltage supervisor or a voltage monitor IC to detect overvoltage and undervoltage conditions and shut down the UC3842D8G4 accordingly. Additionally, you can use a voltage regulator to regulate the input voltage to the UC3842D8G4.
  • The soft-start pin (SS) on UC3842D8G4 is used to slowly ramp up the output voltage during startup, reducing inrush current and preventing voltage overshoots.

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UC3842D8G4 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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