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UC3842AN - onsemi

Description: IC,Switch Mode Controller,low drop out,UC3842AN

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PCB Footprints
UC3842AN - onsemi PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - PDIP-8 CASE626-05 ISSUE L_2022
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3D Models
UC3842AN - onsemi  - 3D model - Dual-In-Line Packages - PDIP-8 CASE626-05 ISSUE L_2022
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UC3842AN Details

  • Manufacturer Part Number:

    UC3842AN

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    11.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.78 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.1 V

  • Output Voltage-Min:

    4.9 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.45 mm

  • Surface Mount:

    NO

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC3842AN Frequently Asked Questions (FAQs)

  • The UC3842AN can operate up to 500 kHz, but the recommended operating frequency is up to 400 kHz for optimal performance.
  • To ensure stable operation, it is recommended to decouple the VCC pin with a 10uF capacitor, use a 1kΩ to 10kΩ resistor in series with the feedback pin, and keep the layout clean and compact to minimize noise and EMI.
  • The soft-start pin (SS) is used to slowly ramp up the output voltage during startup, reducing inrush current and preventing voltage overshoot. It can be connected to a capacitor to ground to set the soft-start time.
  • For voltage mode control, a type 2 compensator is recommended, consisting of a series resistor and capacitor from the output of the error amplifier to the compensation pin, and a capacitor from the compensation pin to ground.
  • The UC3842AN can sink up to 1A of current, but the recommended maximum output current is 500mA to ensure reliable operation and prevent overheating.

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UC3842AN Overview

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For a full list of alternate parts for UC3842AN, check out Findchips.com