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BD4840G-TR - ROHM Semiconductor

Description: Standard Voltage Detectors: ROHM CMOS reset ICs provide low current consumption and high accuracy. The extensive lineup includes both Nch Open Drain and CMOS output types in a wide range of detection voltages (from 2.3V to 6.0V, in 0.1V steps), enabling selection of the ideal solution based on customer requirements. In addition, the entire series is of course both lead-free and RoHS-compliant.

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Symbol
BD4840G-TR - ROHM Semiconductor - PCB symbol
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PCB Footprints
BD4840G-TR - ROHM Semiconductor PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - SSOP5
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3D Models
BD4840G-TR - ROHM Semiconductor - 3D model - SOT23 (5-Pin) - SSOP5
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BD4840G-TR Details

  • Manufacturer Part Number:

    BD4840G-TR

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SSOP

  • Package Description:

    ROHS COMPLIANT, SSOP-5

  • Pin Count:

    5

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    ROHM Semiconductor

  • YTEOL:

    1

  • Additional Feature:

    BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    VOLTAGE DETECTOR

  • JESD-30 Code:

    R-PDSO-G5

  • Length:

    2.9 mm

  • Number of Functions:

    1

  • Number of Terminals:

    5

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.25 mm

  • Supply Current-Max (Isup):

    0.0024 mA

  • Supply Voltage-Max (Vsup):

    10 V

  • Supply Voltage-Min (Vsup):

    0.95 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +4V

  • Width:

    1.6 mm

BD4840G-TR Frequently Asked Questions (FAQs)

  • A recommended PCB layout for optimal thermal performance would be to have a large copper area on the bottom layer connected to the GND pin, and to use thermal vias to dissipate heat. Additionally, keeping the PCB layers as thin as possible and using a thermal interface material can also help.
  • To ensure stable operation with a high-ESR output capacitor, it's recommended to add a 1-10nF ceramic capacitor in parallel with the output capacitor to reduce the ESR. Additionally, increasing the output capacitor value or using a low-ESR capacitor can also help.
  • The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device.
  • The BD4840G-TR is rated for operation up to 105°C. However, it's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet to ensure reliable operation.
  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESR) / (f * C), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, f is the switching frequency, and C is the output capacitance.

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BD4840G-TR Overview

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