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UC3526N - Texas Instruments

Description: Regulating Pulse Width Modulator

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UC3526N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - pdip
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UC3526N - Texas Instruments  - 3D model - Dual-In-Line Packages - pdip
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UC3526N Details

  • Manufacturer Part Number:

    UC3526N

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    DIP

  • Pin Count:

    18

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    35 V

  • Input Voltage-Min:

    8 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDIP-T18

  • JESD-609 Code:

    e4

  • Length:

    22.48 mm

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.2 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:

    DIP18,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    35 V

  • Supply Voltage-Min (Vsup):

    8 V

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    400 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

UC3526N Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the UC3526N is 12V to 35V, with a maximum voltage rating of 40V.
  • To ensure stable operation, ensure that the input voltage is within the recommended range, decouple the power supply with a 10uF capacitor, and use a minimum of 100nF capacitor for the oscillator circuit.
  • The soft-start pin (SS) is used to slowly ramp up the output voltage during startup, reducing inrush currents and preventing voltage overshoots.
  • While the UC3526N can operate at high frequencies, it is not recommended for frequencies above 100kHz due to increased power losses and reduced efficiency.
  • The oscillator frequency can be calculated using the formula: f = 1 / (RT * CT), where RT is the resistance in ohms and CT is the capacitance in farads.

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UC3526N 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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For a full list of alternate parts for UC3526N, check out Findchips.com