LNK626 - Power Integrations

LNK626 Energy-Efficient / Off-line Switcher

LNK623-626 LinkSwitch-CV Family Energy-Efficient, Off-line Switcher with Accurate Primary-side Constant-Voltage (CV) Control Product Highlights Dramatically Simplifies CV Converters • Eliminates optocoupler and all secondary CV control circuitry • Eliminates bias winding supply – IC is self biasing Advanced Performance Features • Compensates for external.

Features

• Compensates for external component temperature variations
• Very tight IC parameter tolerances using proprietary trimming technology
• Continuous and/or discontinuous mode operation for design flexibility
• Frequency jittering greatly reduces EMI filter cost
• Even tighter output tolerances achievable with external resistor selection/trimming Advanced Protection/Safety Features
• Auto-restart protection reduces delivered power by >95% for output short-circuit and all control loop faults (open and shorted components)
• Hysteretic thermal shutdown
  – automatic recovery reduces power supp.