LNK626PG驱动芯片PI

LNK626PG/DG
Energy-Effi cient, Off-line Switcher with Accurate
Primary-side Constant-Voltage (CV) Control
Product Highlights
Dramatically Simplifi es CV Converters
• Eliminates optocoupler and all secondary CV control circuitry
• Eliminates bias winding supply – IC is self biasing
Advanced Performance Features
• Compensates for external component temperature variations
• Very tight IC parameter tolerances using proprietary trimming
technology
• Continuous and/or discontinuous mode operation for design
fl exibility
• Frequency jittering greatly reduces EMI fi lter 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 supply returns from the fi eld
• Meets HV creepage requirements between Drain and all other
pins, both on the PCB and at the package
EcoSmart® – Energy Effi cient
• No-load consumption <200 mW at 230 VAC and down to
below 70 mW with optional external bias
• Easily meets all global energy effi ciency regulations with no
added components
• ON/OFF control provides constant effi ciency down to very light
loads – ideal for mandatory EISA and ENERGY STAR 2.0
regulations
• No primary or secondary current sense resistors – maximizes
effi ciency
Green Package
• Halogen free and RoHS compliant package
Applications
• DVD/STB
• Adapters
• Standby and auxiliary supplies
• Home appliances, white goods and consumer electronics
• Industrial controls