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UC3578DP - Texas Instruments

Description: Texas Instruments UC3578DP, DC-DC Controller 16-Pin, SOIC

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UC3578DP - Texas Instruments - PCB symbol
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PCB Footprints
UC3578DP - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G16)
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3D Models
UC3578DP - Texas Instruments - 3D model - Small Outline Packages - D (R-PDSO-G16)
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UC3578DP Details

  • Manufacturer Part Number:

    UC3578DP

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-16

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1999-11-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    72 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    14 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.89 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.2 A

  • Output Voltage-Max:

    62 V

  • Output Voltage-Min:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.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):

    14 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    100 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC3578DP Frequently Asked Questions (FAQs)

  • The UC3578DP is a high-frequency device, and proper layout and placement are crucial for optimal performance. TI recommends a 4-layer PCB with a solid ground plane, and the device should be placed close to the input capacitors. Additionally, the output inductor and diode should be placed close to the device, and the feedback components should be routed away from the high-frequency nodes.
  • The input capacitor should have a low ESR and be rated for the maximum input voltage. A ceramic capacitor with an X7R or X5R dielectric is recommended. The output capacitor should also have a low ESR and be rated for the maximum output voltage. A ceramic or tantalum capacitor is suitable for this application. The capacitor values should be chosen based on the desired output ripple and transient response.
  • The bootstrap capacitor (CBOOT) is used to generate the gate drive voltage for the high-side MOSFET. It is charged through the bootstrap diode (DBOOT) when the low-side MOSFET is on. The bootstrap capacitor should be a low-ESR ceramic capacitor with a value between 10nF to 100nF.
  • The output voltage of the UC3578DP is set by the feedback resistors (RFB1 and RFB2) and the reference voltage (VREF). The output voltage is calculated using the formula: VOUT = VREF * (1 + RFB2/RFB1). The recommended value for VREF is 2.5V, and the feedback resistors should be chosen based on the desired output voltage.
  • The UC3578DP can operate up to 1MHz, but the recommended operating frequency is between 200kHz to 500kHz for optimal performance and efficiency.

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UC3578DP 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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