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L6571BD - STMicroelectronics

Description: L6571BD, Dual MOSFET Power Driver 0.275A Half Bridge, 10 → 16.6 V, 8-Pin SOIC

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L6571BD - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - ST SO-8_2
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L6571BD Details

  • Manufacturer Part Number:

    L6571BD

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    SO-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    40 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7.75

  • Additional Feature:

    FLOATING LOAD DRIVER; UNDER VOLTAGE LOCKOUT CIRCUIT

  • High Side Driver:

    YES

  • Input Characteristics:

    STANDARD

  • Interface IC Type:

    HALF BRIDGE BASED MOSFET DRIVER

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    STANDARD

  • Output Peak Current Limit-Nom:

    0.275 A

  • Output Polarity:

    TRUE

  • 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:

    25 mA

  • Supply Voltage-Max:

    16.6 V

  • Supply Voltage-Min:

    10 V

  • Supply Voltage-Nom:

    12 V

  • Supply Voltage1-Max:

    500 V

  • Supply Voltage1-Nom:

    12 V

  • Surface Mount:

    YES

  • Technology:

    BCDMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

L6571BD Frequently Asked Questions (FAQs)

  • A good PCB layout for the L6571BD involves keeping the high-frequency switching nodes (e.g., drain and source of the power MOSFET) away from sensitive analog circuits, using a solid ground plane, and minimizing loop areas to reduce radiation. Additionally, it's recommended to use a shielded inductor and to place the IC close to the inductor to reduce radiation.
  • The inductor value depends on the output voltage, input voltage, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. Then, adjust the value based on the specific application requirements, such as output voltage ripple and efficiency.
  • The maximum ambient temperature for the L6571BD is 85°C, but it's recommended to derate the device's power dissipation at higher temperatures to ensure reliable operation.
  • To ensure stability, follow the recommended component values and PCB layout guidelines in the datasheet. Additionally, make sure to decouple the IC's power pins properly, and use a low-ESR output capacitor to minimize oscillations.
  • Yes, the L6571BD can be used in a synchronous rectification configuration. However, this requires additional external components and careful design to ensure proper operation and minimize losses.

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L6571BD Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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