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UCC38085D - Texas Instruments

Description: Current Mode Push-Pull PWM With Programmable Slope Compensation

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UCC38085D - Texas Instruments - PCB symbol
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UCC38085D Details

  • Manufacturer Part Number:

    UCC38085D

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • 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:

    15 V

  • Input Voltage-Min:

    9.3 V

  • Input Voltage-Nom:

    10 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

  • 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):

    2.5 mA

  • Supply Voltage-Max (Vsup):

    15 V

  • Supply Voltage-Min (Vsup):

    12.5 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • 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

UCC38085D Frequently Asked Questions (FAQs)

  • The recommended layout and placement for the UCC38085D involves keeping the high-frequency components (such as the switching FETs and diodes) close to the IC, using a solid ground plane, and minimizing the length of the traces carrying high-frequency signals. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • Optimizing the compensation network for the UCC38085D involves selecting the right values for the compensation components (R1, R2, C1, and C2) based on the specific application requirements. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the desired transient response and stability margins.
  • The maximum allowed voltage on the VCC pin of the UCC38085D is 15V. Exceeding this voltage can damage the IC. It's recommended to use a voltage regulator or a voltage clamp to ensure that the VCC voltage remains within the specified range.
  • To ensure reliable start-up and shutdown of the UCC38085D, it's recommended to use a soft-start circuit to limit the inrush current during start-up, and to use a voltage supervisor or a reset circuit to ensure that the IC is properly reset during power-on and power-off sequences.
  • The recommended operating frequency range for the UCC38085D is 100 kHz to 500 kHz. Operating the IC outside of this range may affect its performance, stability, and efficiency.

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UCC38085D 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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