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LTC2945HUD#TRPBF - Analog Devices

Description: Wide Range I2C Power Monitor

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LTC2945HUD#TRPBF - Analog Devices - PCB symbol
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LTC2945HUD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UD Package 12-Lead Plastic QFN (3mm × 3mm)-1
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LTC2945HUD#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UD Package 12-Lead Plastic QFN (3mm × 3mm)-1
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LTC2945HUD#TRPBF Details

  • Manufacturer Part Number:

    LTC2945HUD#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-12

  • Pin Count:

    12

  • Manufacturer Package Code:

    05-08-1855

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    BATTERY PROTECTOR

  • JESD-30 Code:

    S-PQCC-N12

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max (Vsup):

    80 V

  • Supply Voltage-Min (Vsup):

    4 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

LTC2945HUD#TRPBF Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a low-ESR capacitor for the input and output capacitors.
  • Use a sense resistor with a low temperature coefficient and a high power rating. Ensure the sense resistor is placed close to the IC and the Kelvin connection is used to connect the sense resistor to the IC. Calibrate the system by measuring the sense resistor value and adjusting the gain accordingly.
  • The maximum cable length for the I2C interface is dependent on the clock frequency and the capacitance of the cable. As a general guideline, a cable length of up to 10 meters is recommended for a clock frequency of 400 kHz. Use a shielded cable and terminate the bus with pull-up resistors to minimize signal degradation.
  • The thermal shutdown feature is activated when the junction temperature exceeds 150°C. To handle this, ensure good thermal design and heat sinking. Use a thermal interface material and a heat sink with a thermal resistance of less than 10°C/W. Monitor the thermal shutdown flag and take corrective action to reduce the power consumption or improve the thermal design.
  • A low-ESR capacitor with a value of 10uF to 22uF is recommended for the input capacitor. The capacitor should be placed close to the VIN pin and the GND pin. Use a capacitor with a voltage rating of at least 2x the input voltage.

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LTC2945HUD#TRPBF 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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