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LNK304DN

SWITCHER, 85-250VAC, 0.12A, 7SOIC

LNK304DN - SWITCHER, 85-250VAC, 0.12A, 7SOIC

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製造商產品編號:
LNK304DN
訂購代碼:
1448222
技術資料表:
LNK304DN   Datasheet
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產品總覽

The LNK304DN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher, specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit 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.
  • Lowest Component Count Buck Converter Solution
  • Fully integrated Auto-restart for Short-circuit and open loop fault protection saves component costs
  • 66kHz Operation with accurate current limit, allows low cost Off-the-shelf 1mH Inductor
  • Tight Tolerances and Negligible Temperature Variation
  • High Breakdown Voltage of 700V Provides Excellent Input Surge Withstand
  • Frequency Jittering Dramatically Reduces EMI (~10dB)
  • 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 to 265VAC)
  • 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 50/80mW in self-powered buck topology at 115/230VAC input with no-load

應用

Consumer Electronics, Clock & Timing, LED Lighting, Industrial, Automation & Process Control

警告

Maximum ratings specified may be applied, one at a time, without causing permanent damage to the product.

產品訊息

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:
85V

:
265V

:
SOIC

:
8Pins

:
80mW

:
Buck, Buck-Boost, Flyback

:
-40°C

:
150°C

:
-

:
MSL 1 - Unlimited
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