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FSDM311A - onsemi

Description: Precision Fixed Operating Frequency: 67KHz ; Auto-Restart Mode ; Internal Avalanche-Rugged SenseFET ; Overload Protection (OLP) ; Pulse-by-Pulse Current Limiting ; Built-in Soft-Start ; Internal Start-up Circuit ; Under-Voltage Lockout (UVLO) with Hysteresis ; Secondary-Side Regulation; Internal Thermal Shutdown Function (TSD) ; Over-Voltage Protection (OVP) ; Consumes Under 0.2W at 265VAC & No Load with Advanced Burst-Mode Operation

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FSDM311A - onsemi PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 8DIP1
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FSDM311A Details

  • Manufacturer Part Number:

    FSDM311A

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    PDIP-8

  • Package Description:

    DIP-8

  • Manufacturer Package Code:

    626-05

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Min:

    8 V

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e3

  • Length:

    9.415 mm

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current-Max:

    1.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    3 mA

  • Surface Mount:

    NO

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    73 kHz

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

FSDM311A Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. The device should be placed near a thermal pad or heat sink to dissipate heat efficiently.
  • Ensure proper heat sinking, use a thermal interface material (TIM) between the device and heat sink, and follow the recommended PCB layout guidelines. Also, consider derating the device's current handling capability at high temperatures.
  • The maximum allowed voltage on the gate pin is 20V, but it's recommended to keep it below 15V to ensure reliable operation and prevent damage to the device.
  • Yes, the FSDM311A is suitable for high-frequency switching applications up to 1 MHz. However, ensure proper PCB layout, decoupling, and snubber circuits to minimize electromagnetic interference (EMI) and ringing.
  • Use a voltage regulator or a transient voltage suppressor (TVS) to protect against overvoltage. Implement overcurrent protection using a current sense resistor and a comparator or a dedicated overcurrent protection IC.

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FSDM311A Overview

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