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DS2780E+T&R - Analog Devices

Description: Battery Management Stand-Alone Fuel Gauge IC

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DS2780E+T&R - Analog Devices - PCB symbol
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DS2780E+T&R - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - H8+2-1
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DS2780E+T&R - Analog Devices - 3D model - Small Outline Packages - H8+2-1
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DS2780E+T&R Details

  • Manufacturer Part Number:

    DS2780E+T&R

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    8-TSSOP_4.4-4.4_MM

  • Package Description:

    TSSOP, TSSOP8,.25

  • Pin Count:

    8

  • Manufacturer Package Code:

    8-TSSOP_4.4-4.4_MM

  • Reach Compliance Code:

    Compliant

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2004-12-10

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY GAUGE

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Operating Temperature-Min:

    -20 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Supply Current-Max (Isup):

    0.105 mA

  • Supply Voltage-Max (Vsup):

    4.5 V

  • Supply Voltage-Min (Vsup):

    2.5 V

  • Supply Voltage-Nom (Vsup):

    3.8 V

  • Surface Mount:

    YES

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

DS2780E+T&R Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for accurate fuel gauge measurements. It is recommended to keep the DS2780E+T&R close to the battery, use a solid ground plane, and keep the sense lines short and away from noise sources. A 4-layer PCB with a dedicated ground plane is recommended.
  • Calibration involves adjusting the device's internal registers to match the characteristics of the battery. This can be done using the device's calibration mode, where the device learns the battery's capacity, voltage, and temperature characteristics. Refer to the application note AN-1149 for a step-by-step calibration guide.
  • The DS2780E+T&R can accurately track up to 4,096 charge/discharge cycles. Beyond this, the device's accuracy may degrade. However, this limit can be extended by using the device's cycle count reset feature, which resets the cycle count to zero after a certain number of cycles.
  • The DS2780E+T&R has a built-in mechanism to compensate for battery self-discharge and leakage currents. The device uses a combination of coulomb counting and voltage-based state-of-charge (SOC) estimation to accurately track the battery's state of charge, even in the presence of self-discharge and leakage currents.
  • Yes, the DS2780E+T&R is rated for operation in high-temperature environments, up to 125°C. However, the device's accuracy and reliability may be affected at extreme temperatures. It is recommended to consult the device's datasheet and application notes for guidance on using the device in high-temperature environments.

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DS2780E+T&R 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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