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IR2108 - Infineon

Description: MOSFET/IGBT driver IR2108 DIP8 350mA

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Symbol
IR2108 - Infineon - PCB symbol
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PCB Footprints
IR2108 - Infineon PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 8-Lead PDIP
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3D Models
IR2108 - Infineon - 3D model - Dual-In-Line Packages - 8-Lead PDIP
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IR2108 Details

  • Manufacturer Part Number:

    IR2108

  • Part Life Cycle Code:

    Obsolete

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Infineon Technologies AG

  • YTEOL:

    0

  • Additional Feature:

    FLOATING LOAD DRIVER; UNDER VOLTAGE LOCKOUT CIRCUIT

  • High Side Driver:

    YES

  • Input Characteristics:

    GATED SCHMITT TRIGGER

  • Interface IC Type:

    HALF BRIDGE BASED MOSFET DRIVER

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.88 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    STANDARD

  • Output Peak Current Limit-Nom:

    0.35 A

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.33 mm

  • Supply Voltage-Max:

    20 V

  • Supply Voltage-Min:

    10 V

  • Supply Voltage-Nom:

    15 V

  • Supply Voltage1-Max:

    620 V

  • Supply Voltage1-Min:

    5 V

  • Supply Voltage1-Nom:

    15 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Turn-off Time:

    0.28 µs

  • Turn-on Time:

    0.3 µs

  • Width:

    7.62 mm

IR2108 Frequently Asked Questions (FAQs)

  • The maximum allowed voltage across the bootstrap capacitor is 15V, as specified in the datasheet. Exceeding this voltage may damage the device.
  • Yes, but with caution. The datasheet recommends separate supplies for VCC and VB to ensure proper operation. Using a single supply may work, but it's essential to ensure that VB is always higher than or equal to VCC by at least 2V to maintain bootstrap capacitor charging.
  • The bootstrap capacitor value depends on the specific application, including the switching frequency, gate driver current, and desired ripple voltage. A good starting point is to use the formula: CBootstrap = (Igate * tswitch) / ΔV, where Igate is the gate driver current, tswitch is the switching time, and ΔV is the allowed voltage ripple.
  • The maximum current that can be sinked/sourced by the IR2108 depends on the specific pins and the operating conditions. The datasheet specifies a maximum sink current of 2A and a maximum source current of 1A for the gate driver outputs.
  • Yes, the IR2108 can be used for high-side switching only. In this case, connect the HO (high-side output) pin to the gate of the power transistor and leave the LO (low-side output) pin unconnected.

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IR2108 Overview

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