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UC2827DW-1 - Texas Instruments

Description: Texas Instruments UC2827DW-1, PWM Current Mode Controller, Triple 0.25 A, 500 kHz 24-Pin SOIC

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UC2827DW-1 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G24)
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UC2827DW-1 - Texas Instruments  - 3D model - Small Outline Packages - DW (R-PDSO-G24)
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UC2827DW-1 Details

  • Manufacturer Part Number:

    UC2827DW-1

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    24

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    CAN ALSO WORK IN CURRENT MODE

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    9.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    15.4 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP24,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max (Isup):

    1 mA

  • Supply Voltage-Max (Vsup):

    20 V

  • Supply Voltage-Min (Vsup):

    8.8 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    7.5 mm

UC2827DW-1 Frequently Asked Questions (FAQs)

  • The UC2827DW-1 requires careful layout and placement to minimize noise and ensure proper operation. TI recommends placing the IC close to the power source, using a solid ground plane, and keeping the input and output traces short and separate.
  • The output inductor selection depends on the desired output voltage, current, and switching frequency. TI recommends using an inductor with a high saturation current, low DC resistance, and a suitable inductance value (e.g., 10-22 μH) to ensure stable operation.
  • Although the datasheet specifies a maximum input voltage of 18V, TI recommends limiting the input voltage to 15V to ensure reliable operation and prevent damage to the IC.
  • The output voltage can be adjusted by changing the resistor divider ratio (R1 and R2) connected to the FB pin. The output voltage is calculated using the formula: Vout = 1.25V x (R1 + R2) / R2.
  • The EN (enable) pin is used to enable or disable the converter. When the EN pin is pulled low, the converter is disabled, and the output voltage is reduced to near zero. This feature can be used to implement power-saving modes or shutdown the converter.

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UC2827DW-1 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 UC2827DW-1, check out Findchips.com