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TOP243FN - Power Integrations

Description: IC OFFLINE SWIT UVLO HV TO262

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Symbol
TOP243FN - Power Integrations - PCB symbol
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PCB Footprints
TOP243FN - Power Integrations PCB footprint - Other - Other - TOP243FN-5
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3D Models
TOP243FN - Power Integrations - 3D model - Other - TOP243FN-5
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TOP243FN Details

  • Manufacturer Part Number:

    TOP243FN

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-262

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Power Integrations

  • YTEOL:

    0

  • Additional Feature:

    REQUIRES AN AC SUPPLY OF 85 TO 265 V; SEATED HGT-NOM

  • Analog IC - Other Type:

    LOAD SWITCH

  • JESD-30 Code:

    R-PZIP-T6

  • Length:

    10.29 mm

  • Number of Functions:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    ZIP

  • Package Equivalence Code:

    ZIP6,.27,.06,100/50TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    15.1 mm

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Pure Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    ZIG-ZAG

  • Width:

    4.435 mm

TOP243FN Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the TOP243FN is -40°C to 150°C, but the device is typically specified for operation up to 125°C.
  • To ensure reliable start-up, make sure the input voltage rises monotonically and the input voltage is above the UVLO (Under-Voltage Lockout) threshold of 12V. Also, ensure that the output voltage is not pre-biased before applying the input voltage.
  • For optimal performance, follow the recommended layout and PCB design guidelines provided in the application notes and evaluation board documentation. Key considerations include minimizing the loop area of the transformer and output rectifier, using a solid ground plane, and keeping the input and output stages separate.
  • Select a transformer with a turns ratio that matches the desired output voltage, and ensure it meets the minimum primary inductance requirement of 1.5μH. Also, consider the transformer's core material, wire gauge, and construction to ensure it can handle the required power and frequency.
  • To ensure EMI compliance, use a common-mode choke and X-capacitors in the input stage, and consider adding a Y-capacitor between the primary and secondary sides. Also, follow the recommended PCB layout and shielding guidelines to minimize radiated emissions.

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TOP243FN Overview

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