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0-4 W Designs Delivering Switcher Benefits at Linear Cost

Description

Description:

  • Extremely simple circuit configuration
  • Primary based CV/CC solution eliminates 10 to 20 secondary components for low system cost
  • Universal input range allows worldwide operation
  • Up to 70% reduction in power dissipation-reduces enclosure size significantly
  • System level thermal and current limit protection
  • Up to 75% lighter power supply reduces shipping cost
  • Consumes <300 mW at 265 VAC with no load

Features:

LNK500

  • Optimized for linear replacement in CV only designs
  • Lowest cost solution for linear replacement CV/CC chargers with =±25% CC tolerance
  • Recommended for cost sensitive applications in larger systems with existing EMI filtering

LNK501

  • Optimum choice for CV/CC chargers with =±20% CC tolerance
  • Recommended for charger/adapters where the best CV/CC tolerance is required

LNK520

  • Optimized for bias winding feedback and EMI reduction
  • Very low cost CV/CC implementation
  • Recommended for both stand-alone charger/adapter applications and larger systems where EMI reduction is required

Applications:

  • Linear transformer replacement in all = 4 W AC-DC applications
  • Chargers for cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices, shavers, etc.
  • Home appliances, white goods and consumer electronics
  • TV standby and other auxiliary supplies

Basic Schematic

Power Table

Output Power
PRODUCT 230 VAC ±15% 85-265 VAC No-load
Input Power
(mW)
CC
Tolerance
LNK500PN
LNK500GN
4 W
5.5 W
3 W
3.5 W
<300
<500
±25%
LNK501PN
LNK501GN
4 W
5.5 W
3 W
3.5 W
<300
<500
±20%
LNK520PN
LNK520GN
4 W
5.5 W
3 W
3.5 W
<300
<500
±24%

Product Documents

Design Examples