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LP3971SQ-7848/NOPB - Texas Instruments

Description: Programmable Power Management Unit to 40-Pin WQFN EP T/R

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LP3971SQ-7848/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LP3971SQ-7848/NOPB - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RSB0040A
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3D Models
LP3971SQ-7848/NOPB - Texas Instruments - 3D model - Quad Flat No-Lead - RSB0040A
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LP3971SQ-7848/NOPB Details

  • Manufacturer Part Number:

    LP3971SQ-7848/NOPB

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    WQFN-40

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    INTEGRATED POWER MANAGEMENT UNIT

  • JESD-30 Code:

    S-XQCC-N40

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    40

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC40,.2SQ,16

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.7 V

  • Supply Voltage-Nom (Vsup):

    3.6 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

LP3971SQ-7848/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and thermal vias to dissipate heat. A minimum of 1 oz copper thickness is recommended. Refer to the application note 'LP3971 PCB Layout Guidelines' for more details.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. A minimum of 10uF input capacitor and 22uF output capacitor is recommended.
  • The maximum input voltage that can be applied to the LP3971SQ-7848/NOPB is 15V. Exceeding this voltage may cause damage to the device.
  • The LP3971SQ-7848/NOPB is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It is recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
  • To troubleshoot issues, start by checking the input voltage, output voltage, and output current. Verify that the component values and PCB layout meet the recommended guidelines. Use a thermal camera or thermometer to check for overheating. If the issue persists, consult the application note 'LP3971 Troubleshooting Guide' or contact Texas Instruments support.

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LP3971SQ-7848/NOPB Overview

Use the download button to access the LP3971SQ-7848/NOPB schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LP397, or try a keyword search, such as Power Management Circuits

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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