LinkSwitch™-TN2 Switcher IC

Power Integrations' LinkSwitch-TN2 energy efficient off-line switcher IC with integrated system level protection

Image of Power Integrations' LinkSwitch-TN2 Power Integrations' LinkSwitch-TN2 family of ICs for non-isolated off-line power supplies provide dramatically improved performance compared to traditional linear or cap-dropper solutions. Designs using the highly integrated LinkSwitch-TN2 ICs are more flexible and feature increased efficiency, comprehensive system level protection, and higher reliability. The device family supports buck, buck-boost, and flyback converter topologies. Each device incorporates a 725 V power MOSFET, oscillator, On/Off control for highest efficiency at light load, a high-voltage switched current source for self-biasing, frequency jittering, fast (cycle-by-cycle) current limit, hysteretic thermal shutdown, and output and input overvoltage protection circuitry onto a monolithic IC.

Design Examples: 

Features
  • Supports buck, buck-boost, and flyback topologies
  • Low component-count buck converter
  • Excellent load and line regulation
  • Selectable device current limit
  • 66 kHz operation with accurate current limit
  • Allows the use of low-cost off-the-shelf inductors
  • Reduces size and cost of magnetics and output capacitor
  • Frequency jittering reduces EMI filter complexity
  • Pin-out simplifies PCB heat sinking
Applications
  • Major appliances
  • Small appliances
  • Internet of Things (IoT)
  • Smart meters

Reference Design Kits

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR BRD1265CRDK-721EVAL BOARD FOR BRD1265C5 - ImmediateSee Page for PricingView Details
EVAL BOARD FOR LNK3207DRDK-912EVAL BOARD FOR LNK3207D1 - ImmediateSee Page for PricingView Details
EVAL BOARD FOR LNK3209DRDK-723EVAL BOARD FOR LNK3209D4 - ImmediateSee Page for PricingView Details

LinkSwitch-TN2

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC OFFLINE SWITCH MULT TOP 8SOLNK3206D-TLIC OFFLINE SWITCH MULT TOP 8SO9606 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8DIPLNK3204PIC OFFLINE SWITCH MULT TOP 8DIP8983 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3206GQ-TLIC OFFLINE SWITCH MULT TOP 8SMD4529 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8DIPLNK3202PIC OFFLINE SWITCH MULT TOP 8DIP0 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3207G-TLIC OFFLINE SWITCH MULT TOP 8SMD1463 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3202G-TLIC OFFLINE SWITCH MULT TOP 8SMD1880 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3204G-TLIC OFFLINE SWITCH MULT TOP 8SMD1716 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SOLNK3202D-TLIC OFFLINE SWITCH MULT TOP 8SO15366 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SOLNK3204D-TLIC OFFLINE SWITCH MULT TOP 8SO9494 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SOLNK3205D-TLIC OFFLINE SWITCH MULT TOP 8SO9151 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3206G-TLIC OFFLINE SWITCH MULT TOP 8SMD4582 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SMDLNK3205G-TLIC OFFLINE SWITCH MULT TOP 8SMD1144 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8DIPLNK3205PIC OFFLINE SWITCH MULT TOP 8DIP872 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8SOLNK3207D-TLIC OFFLINE SWITCH MULT TOP 8SO2977 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8DIPLNK3207PIC OFFLINE SWITCH MULT TOP 8DIP781 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH MULT TOP 8DIPLNK3206PIC OFFLINE SWITCH MULT TOP 8DIP72 - ImmediateSee Page for PricingView Details
600 MA (MDCM) 1000 MA (CCM)LNK3209D-TL600 MA (MDCM) 1000 MA (CCM)0 - ImmediateSee Page for PricingView Details
600 MA (MDCM) 1000 MA (CCM)LNK3209G-TL600 MA (MDCM) 1000 MA (CCM)1000 - ImmediateSee Page for PricingView Details
600 MA (MDCM) 1000 MA (CCM)LNK3209P600 MA (MDCM) 1000 MA (CCM)1210 - ImmediateSee Page for PricingView Details
LINKSWITCH-TN2Q 750V 850MALNK3209GQ-TLLINKSWITCH-TN2Q 750V 850MA0 - ImmediateSee Page for PricingView Details
Updated: 2021-06-15
Published: 2017-03-28