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LTC7871ELWE#PBF - Analog Devices

Description: Six-Phase, Synchronous Bidirectional Buck or Boost Controller,–0.3V to 100V ,150mA,60kHz to 750kHz,–65°C to 150°C

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LTC7871ELWE#PBF - Analog Devices - PCB symbol
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LTC7871ELWE#PBF - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - LTC6813ILWE-1#3ZZPBF_2026
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LTC7871ELWE#PBF - Analog Devices - 3D model - Quad Flat Packages - LTC6813ILWE-1#3ZZPBF_2026
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LTC7871ELWE#PBF Details

  • Manufacturer Part Number:

    LTC7871ELWE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LQFP-64

  • Pin Count:

    64

  • Manufacturer Package Code:

    05-08-1982

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2020-03-18

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • JESD-30 Code:

    S-PQFP-G64

  • Length:

    10 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    64

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLFQFP

  • Package Equivalence Code:

    QFP64,.47SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, HEAT SINK/SLUG, LOW PROFILE, FINE PITCH

  • Seated Height-Max:

    1.6 mm

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    780 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    10 mm

LTC7871ELWE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the LTC7871ELWE#PBF near a thermal pad or a heat sink, and ensuring that there are no thermal barriers or obstacles nearby. A 4-layer PCB with a solid ground plane is also recommended. Additionally, it's essential to follow the recommended land pattern and thermal pad connection guidelines provided in the datasheet.
  • To ensure accurate current sensing, it's crucial to follow the recommended layout and routing guidelines for the current sense resistors (Rs) and the device's sense pins. The Rs resistors should be placed close to the device, and the sense lines should be routed away from noisy signals and power traces. Additionally, the Rs resistors should be matched and have a low temperature coefficient to minimize errors.
  • The maximum allowed voltage on the SENSE pins is ±250mV with respect to the GND pin. Exceeding this voltage can damage the device. It's essential to ensure that the voltage on the SENSE pins is within this range to prevent damage and ensure accurate current sensing.
  • The LTC7871ELWE#PBF has a built-in overcurrent protection feature that can be enabled by connecting the OCP pin to a voltage source. When an overcurrent condition is detected, the device will pull the OCP pin low, which can be used to trigger an interrupt or shut down the system. It's essential to ensure that the OCP pin is properly connected and that the system is designed to handle overcurrent conditions safely.
  • The recommended input filter configuration for the LTC7871ELWE#PBF involves using a low-pass filter with a cutoff frequency below 100kHz to filter out high-frequency noise and ensure accurate current sensing. A simple RC filter with a 1kΩ resistor and a 10nF capacitor can be used, but the exact filter configuration may vary depending on the specific application and noise environment.

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LTC7871ELWE#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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