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BD680 - STMicroelectronics

Description: BD680, Darlington Transistor, PNP 4 A 80 V HFE:750, 3-Pin, SOT-32

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Symbol
BD680 - STMicroelectronics - PCB symbol
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PCB Footprints
BD680 - STMicroelectronics PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - SOT-32 (TO-126)
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3D Models
BD680 - STMicroelectronics - 3D model - Transistor Outline, Vertical - SOT-32 (TO-126)
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BD680 Details

  • Manufacturer Part Number:

    BD680

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SIP

  • Package Description:

    ROHS COMPLIANT PACKAGE-3

  • Pin Count:

    3

  • Country Of Origin:

    India

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.95

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    9

  • Case Connection:

    ISOLATED

  • Collector Current-Max (IC):

    4 A

  • Collector-Emitter Voltage-Max:

    80 V

  • Configuration:

    DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

  • DC Current Gain-Min (hFE):

    750

  • JEDEC-95 Code:

    TO-126

  • JESD-30 Code:

    R-PSFM-T3

  • JESD-609 Code:

    e3

  • Number of Elements:

    1

  • Number of Terminals:

    3

  • Operating Temperature-Max:

    150 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Polarity/Channel Type:

    PNP

  • Power Dissipation Ambient-Max:

    40 W

  • Power Dissipation-Max (Abs):

    40 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    10 MHz

  • VCEsat-Max:

    2.5 V

BD680 Frequently Asked Questions (FAQs)

  • A good PCB layout for the BD680 involves keeping the power traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a shielded inductor and to keep the switching node (SW) away from sensitive analog circuits.
  • To optimize the compensation network, start by selecting the correct compensation components based on the output voltage and current requirements. Then, use the datasheet's recommended values as a starting point and adjust them based on the specific application's requirements. It's also recommended to use a network analyzer to measure the loop gain and adjust the compensation components accordingly.
  • The BD680 can handle input voltages up to 18V, but it's recommended to keep the input voltage below 15V to ensure reliable operation and to prevent overheating.
  • To ensure the BD680 operates within the recommended operating temperature range (-40°C to 150°C), make sure to provide adequate heat sinking, use a thermally conductive PCB material, and avoid blocking airflow around the IC. Additionally, consider using a thermal interface material to improve heat transfer between the IC and the heat sink.
  • When selecting the output inductor for the BD680, consider the inductor's saturation current, DC resistance, and core material. Choose an inductor with a high saturation current rating to handle the peak current, and select a core material that minimizes core losses. Additionally, consider the inductor's physical size and shape to ensure it fits the PCB layout.

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BD680 Overview

Use the download button to access the BD680 schematic symbol, PCB footprint, and 3D model.
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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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BD680 Alternates

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Image Part Number Model
Part Image BD680 Rochester Electronics LLC

4A, 80V, PNP, Si, POWER TRANSISTOR, TO-225AA, PLASTIC, CASE 77-09, 3 PIN
Part Image BD680AS Fairchild Semiconductor Corporation

Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD680A Central Semiconductor Corp

Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin
Part Image BD680A Samsung Semiconductor

Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, Plastic/Epoxy, 3 Pin
Part Image BD680ALEADFREE Central Semiconductor Corp

Power Bipolar Transistor, 4A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-126, Plastic/Epoxy, 3 Pin
For a full list of alternate parts for BD680, check out Findchips.com