• pic_02

    Cart
  • pic_02

    Login

    LNK306GN-TL

    LinkSwitch™-TN is specifically designed to replace all linear and
    capacitor-fed (cap dropper) non-isolated power supplies in the
    under 360 mA output current range at equal system cost while
    offering much higher performance and energy efficiency.
    LinkSwitch-TN devices integrate a 700 V power MOSFET,
    oscillator, simple On/Off control scheme, a high-voltage switched
    current source, frequency jittering, cycle-by-cycle current limit
    Figure 1. Typical Buck Converter Application (See Application Examples Section
    for Other Circuit Configurations).
    and thermal shutdown circuitry onto a monolithic IC. The start-up
    and operating power are derived directly from the voltage on the
    DRAIN pin, eliminating the need for a bias supply and associated
    circuitry in buck or flyback converters. The fully integrated
    auto-restart circuit in the LNK304-306 safely limits output power
    during fault conditions such as short-circuit or open loop,
    reducing component count and system-level load protection
    cost. A local supply provided by the IC allows use of a nonsafety graded optocoupler acting as a level shifter to further
    enhance line and load regulation performance in buck and
    buck-boost converters, if required.

    Category:

    Download Details PDF
    Notice:

    In stock will ship in 2 days. Real-time inventory pls confirm with us.

    INQUIRY ONLINE




      SPECIFICATION

      Cost Effective Linear/Cap Dropper Replacement
      • Lowest cost and component count buck converter solution
      • Fully integrated auto-restart for short-circuit and open loop
      fault protection – saves external component costs
      • LNK302 uses a simplified controller without auto-restart for
      very low system cost
      • 66 kHz operation with accurate current limit – allows low cost
      off-the-shelf 1 mH inductor for up to 120 mA output current
      • Tight tolerances and negligible temperature variation
      • High breakdown voltage of 700 V provides excellent input
      surge withstand
      • Frequency jittering dramatically reduces EMI (~10 dB)
      • Minimizes EMI filter cost
      • High thermal shutdown temperature (+135 °C minimum)
      Much Higher Performance Over Discrete Buck and
      Passive Solutions
      • Supports buck, buck-boost and flyback topologies
      • System level thermal overload, output short-circuit and open
      control loop protection
      • Excellent line and load regulation even with typical configuration
      • High bandwidth provides fast turn-on with no overshoot
      • Current limit operation rejects line ripple
      • Universal input voltage range (85 VAC to 265 VAC)
      • Built-in current limit and hysteretic thermal protection
      • Higher efficiency than passive solutions
      • Higher power factor than capacitor-fed solutions
      • Entirely manufacturable in SMD
      EcoSmart™– Extremely Energy Efficient
      • Consumes typically only 50/80 mW in self-powered buck
      topology at 115/230 VAC input with no-load (opto feedback)
      • Consumes typically only 7/12 mW in flyback topology with
      external bias at 115/230 VAC input with no-load
      • Meets California Energy Commission (CEC), Energy Star, and
      EU requirements