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BQ4845S-A4N - Texas Instruments

Description: IC RTC CLK/CALENDAR PAR 28-SOIC

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BQ4845S-A4N - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G28)
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BQ4845S-A4N - Texas Instruments  - 3D model - Small Outline Packages - DW (R-PDSO-G28)
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BQ4845S-A4N Details

  • Manufacturer Part Number:

    BQ4845S-A4N

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-28

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Clock Frequency-Max:

    0.032 MHz

  • External Data Bus Width:

    8

  • Information Access Method:

    PARALLEL, DIRECT ADDRESS

  • Interrupt Capability:

    Y

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    17.9705 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP28,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.667 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.75 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time-Min:

    SECONDS

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

    30

  • Volatile:

    NO

  • Width:

    7.5565 mm

  • uPs/uCs/Peripheral ICs Type:

    TIMER, REAL TIME CLOCK

BQ4845S-A4N Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the device and use short, wide traces for the power lines.
  • Ensure that the output capacitor is properly sized and placed close to the device. Also, make sure the input voltage is within the recommended range and the input capacitor is properly sized.
  • The maximum ambient temperature for the BQ4845S-A4N is 85°C. However, the device can operate up to 125°C junction temperature.
  • Yes, the BQ4845S-A4N is suitable for high-reliability applications. It is built with a robust design and has undergone rigorous testing to ensure its reliability.
  • Check the input voltage, output voltage, and current. Verify that the device is properly soldered and the PCB layout is correct. Also, check for any signs of overheating or physical damage.

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BQ4845S-A4N 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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