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UC3848N - Texas Instruments

Description: Switching Controllers Average Current Mode

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UC3848N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T)
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UC3848N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T)
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UC3848N Details

  • Manufacturer Part Number:

    UC3848N

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    GREEN, PLASTIC, DIP-16

  • Pin Count:

    16

  • 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:

    20 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDIP-T16

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    2.2 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    26 mA

  • Surface Mount:

    NO

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC3848N Frequently Asked Questions (FAQs)

  • The maximum voltage rating for the UC3848N is 30V, but it's recommended to operate it within 15V to ensure reliable operation and to prevent damage from voltage spikes.
  • The oscillator circuit resistor values (Rt and Ct) depend on the desired switching frequency. A good starting point is to use the values recommended in the datasheet (Rt = 10kΩ, Ct = 3.3nF for 250kHz). Then, adjust them based on the specific application requirements and component tolerances.
  • The Vref pin provides a 5V reference voltage for the internal circuitry. It can also be used as a reference for external circuits. Connect a 1kΩ to 10kΩ resistor between Vref and GND to create a stable 5V reference point.
  • Ensure that the VCC pin is connected to a stable DC voltage source (typically 12V to 15V) through a suitable decoupling capacitor (e.g., 10uF). Also, connect the GND pin to a solid ground plane to prevent noise and oscillations.
  • The maximum current rating for the output stage (pins 13 and 14) is 1A peak. However, the actual current handling capability depends on the specific application, PCB layout, and thermal management.

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UC3848N 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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Switching Controller, Current-mode, 2.2A, 1000kHz Switching Freq-Max, BIPolar, PDIP16

Part Image UC2848NG4 Texas Instruments

Switching Controller, Current-mode, 2.2A, 1000kHz Switching Freq-Max, BIPolar, PDIP16

Part Image UC3848J Texas Instruments

Switching Controller, Current-mode, 2A, 1000kHz Switching Freq-Max, BIPolar, CDIP16