LinkSwitch-XT

Energy-Efficient Low Power Off-Line Switcher IC (Low Component Count, Tight Output Regulation)

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Typical Applications with LinkSwitch-XT

Data Sheets

Product Details

Description:

Optimized for Lowest System Cost

  • Proprietary IC trimming and transformer construction techniques enable Clampless™ designs with LNK362 for lower system cost, component count and higher efficiency
  • Fully integrated auto-restart for short circuit and open loop protection
  • Self-biased supply – saves transformer auxiliary winding and associated bias supply components
  • Frequency jittering greatly reduces EMI
  • Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package

Richer Feature Set than Linear/RCC

  • Accurate hysteretic thermal shutdown protection – automatic recovery improves field reliability
  • Universal input range allows worldwide operation
  • Simple ON/OFF control, no loop compensation needed
  • Eliminates bias winding – simpler, lower cost transformer
  • Very low component count – higher reliability and single side printed circuit board
  • Auto-restart reduces delivered power by 95% during short circuit and open loop fault conditions
  • High bandwidth provides fast turn on with no overshoot and excellent transient load response

Applications:

  • Chargers for cell/cordless phones, PDAs, digital cameras, MP3/portable audio players, and shavers
  • Supplies for appliances, industrial systems, and metering

Applications

Power Table

Output Power (Watts)1
PRODUCT2 230 VAC ±15% 85-265 VAC
Adapter3 Open
Frame4
Adapter3 Open
Frame4
LNK362D
LNK362P
LNK362G
2.8 2.8 2.6 2.6
LNK363D
LNK363P
LNK363G
5 7.5 3.7 4.7
LNK364D
LNK364P
LNK364G
5.5 9 4 6

Notes:

  1. See the Key Application Considerations section of the LinkSwitch-XT Family Data Sheet for complete description of assumptions.
  2. Packages: P: DIP-8B, G: SMD-8B, D: SO-8C. Please see the Part Ordering Information section of the LinkSwitch-XT Family Data Sheet.
  3. Minimum continuous power in a typical non-ventilated enclosed adapter measured at 50 °C ambient.
  4. Minimum practical continuous power in an open frame design with adequate heat sinking, measured at 50 °C ambient.

Product Documents

Design Examples

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