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UCC3895PW - Texas Instruments

Description: BiCMOS Advanced Phase Shift PWM Controller

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UCC3895PW - Texas Instruments - PCB symbol
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PCB Footprints
UCC3895PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G20)
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UCC3895PW - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G20)
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UCC3895PW Details

  • Manufacturer Part Number:

    UCC3895PW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    TSSOP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO OPERATES IN CURRENT MODE

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    16.5 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    0.1 A

  • Output Voltage-Max:

    5.06 V

  • Output Voltage-Min:

    4.94 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max (Isup):

    6 mA

  • Supply Voltage-Max (Vsup):

    16.5 V

  • Supply Voltage-Min (Vsup):

    10 V

  • Supply Voltage-Nom (Vsup):

    12 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

UCC3895PW Frequently Asked Questions (FAQs)

  • TI recommends a 4-layer PCB with a solid ground plane, and placing the UCC3895PW close to the input capacitors and output inductors to minimize loop areas and reduce EMI. Additionally, a shielded inductor and a common-mode choke can be used to further reduce EMI.
  • The compensation network can be optimized by using the TI-provided compensation calculator tool or by following the guidelines in the datasheet. The goal is to achieve a stable loop gain of around 10-15 dB at the crossover frequency. The compensation network should be adjusted to ensure the loop gain rolls off at a rate of -20 dB/decade.
  • The maximum allowed input voltage for the UCC3895PW is 18V, but it's recommended to keep the input voltage below 15V to ensure reliable operation and to prevent damage to the device.
  • Yes, the UCC3895PW can be used in a synchronous rectification topology. However, it's essential to ensure that the synchronous rectifier is properly synchronized with the UCC3895PW's switching frequency to avoid shoot-through currents and reduce losses.
  • To troubleshoot issues with the UCC3895PW, start by checking the PCB layout and component placement for any potential issues. Then, use an oscilloscope to measure the voltage and current waveforms at the input, output, and switching nodes. Compare the measurements with the expected waveforms in the datasheet. If the issue persists, consult the TI support team or a qualified engineer for further assistance.

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UCC3895PW 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 UCC3895PW, check out Findchips.com