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TL3845BD-8 - Texas Instruments

Description: High-Performance Current-Mode PWM Controller

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TL3845BD-8 - Texas Instruments PCB footprint - Other - Other - SOIC127P600X175-8N
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TL3845BD-8 - Texas Instruments  - 3D model - Other - SOIC127P600X175-8N
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TL3845BD-8 Details

  • Manufacturer Part Number:

    TL3845BD-8

  • 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:

    30 V

  • Input Voltage-Min:

    12 V

  • Input Voltage-Nom:

    15 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

  • Output Voltage-Max:

    5.1 V

  • Output Voltage-Min:

    4.9 V

  • Output Voltage-Nom:

    5 V

  • 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):

    30 mA

  • Supply Voltage-Max (Vsup):

    30 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    300 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

TL3845BD-8 Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in their application notes and evaluation modules. It's essential to follow these guidelines to minimize noise, ensure proper heat dissipation, and optimize the device's performance.
  • The output capacitor selection depends on the output voltage, current, and ripple requirements. A general rule of thumb is to choose a capacitor with a capacitance value of at least 10uF and a voltage rating of 1.5 to 2 times the output voltage. Additionally, consider the capacitor's ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) to ensure it can handle the output current and frequency.
  • The maximum ambient temperature for the TL3845BD-8 is 85°C. As the ambient temperature increases, the device's performance may degrade, and its reliability may be affected. It's essential to ensure proper heat dissipation and consider derating the device's performance at higher temperatures.
  • Yes, the TL3845BD-8 is suitable for high-reliability and automotive applications. However, it's essential to follow Texas Instruments' guidelines for reliability and qualification, and to ensure that the device meets the specific requirements of the application, including AEC-Q100 qualification for automotive use.
  • To troubleshoot issues with the TL3845BD-8, start by verifying the PCB layout, component selection, and soldering quality. Check for proper decoupling, filtering, and noise reduction. Use oscilloscopes and other diagnostic tools to identify the root cause of the issue. Consult Texas Instruments' application notes and technical support resources for guidance on troubleshooting and resolving common issues.

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TL3845BD-8 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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