LNK520

Application• Linear transformer replacement in all 3 W applications• Chargers for cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices, shavers, etc.• Home appliances, white goods and consumer electronics• Constant output current LED lighting appl...

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SeekIC No. : 004398044 Detail

LNK520: Application• Linear transformer replacement in all 3 W applications• Chargers for cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices, shavers, etc.• Ho...

floor Price/Ceiling Price

Part Number:
LNK520
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/2

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Product Details

Description



Application

• Linear transformer replacement in all 3 W applications
• Chargers for cell phones, cordless phones, PDAs, digital
   cameras, MP3/portable audio devices, shavers, etc.
• Home appliances, white goods and consumer electronics
• Constant output current LED lighting applications
• TV standby and other auxiliary supplies



Pinout

  Connection Diagram


Specifications

DRAIN Voltage .................................. .............  -0.3 V to 700 V
DRAIN Peak Current......................................................400 mA
CONTROL Voltage ................................................ -0.3 V to 9 V
CONTROL Current (not to exceed 9 V)...........................100 mA
Storage Temperature .....................................-65 °C to 150 °C
Operating Junction Temperature(2) ................-40 °C to 150 °C
Lead Temperature(3) ......................................................260 °C
Notes:
1. All voltages referenced to SOURCE, TA = 25 °C.
2. Normally limited by internal circuitry.
3. 1/16 in. from case for 5 seconds.
4. Maximum ratings specified may be applied, one at a time,
without causing permanent damage to the product.
Exposure to Absolute Maximum Rating conditions for
extended periods of time may affect product reliability.



Description

LinkSwitch is specifically designed to replace low power linear transformer/RCC chargers and adapters at equal or lower system cost with much higher performance and energy efficiency.

LNK520 is equivalent to LNK500 but optimized for use with bias winding feedback and has improved switching characteristics for significantly reduced EMI. In addition, if bias and output windings are magnetically well coupled, output voltage load Table 1. Notes: 1. Output power for designs in an enclosed adapter measured at 50 °C ambient. 2. See Figure 1 (b) for Min (CV only designs) and Typ (CV/CC charger designs) power points identified on output characteristic. 3. Uses higher reflected voltage transformer designs for increased power capability see Key Application Considerations section. 4. For lead-free package options, see Part Ordering Information.

regulation can be improved. With efficiency of up to 75% and <300 mW no-load consumption, a LinkSwitch solution can save the end user enough energy over a linear design to completely pay for the full power supply cost in less than one year. LinkSwitch integrates a 700 V power MOSFET, PWM control, high voltage start-up, current limit, and thermal shutdown circuitry, onto a monolithic IC.




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