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Achieve Greater than 80% Accuracy in Low-Power Flyback Designs: LinkSwitch-TNZ


LinkSwitch-TNZ Energy Efficient Off-line Switcher IC with Best-in-Class Light Load Efficiency and Lossless AC Zero-Cross Detection
LinkSwitch-TNZ

Power Integration’s LinkSwitch-TNZ is now available at Braemac. The LinkSwitch-TNZ is a transformative family of ICs that seamlessly integrate power consumption with lossless AC zero-crossing signal generation – essential for system clock and timing functions.


This groundbreaking solution delivers unparalleled flexibility, surpassing traditional discrete implementations by reducing component count by over 40%. With the LinkSwitch-TNZ, developers can anticipate more efficient designs that achieve over 80% accuracy in low-power flyback designs. Plus, its best-in-class light-load efficiency empowers various functions to remain active during system standby, including displays, wireless connectivity, and sensors.


The LinkSwitch-TNX supports a range of converter topologies including buck, buck-boost, and flyback that meet diverse application requirements. For high-power applications, the optional inclusion of an X-capacitator discharge function not only reduces PCB space but also minimizes the BOM count and enhances reliability. Say goodbye to bleed resistors with the LNK331x variant that reduces no-load consumption in white goods by up to 1W.


Experience ±3% regulation across line and load, alongside minimal no-load consumption of less than 30mW with external bias, all while maintaining an IC standby current of less than 100µA.


 

Key Specs/Benefits:

• Lossless zero-cross detection and signal generation

• Optional X-capacitor discharge function

• Supports buck, buck-boost, and flyback topologies

• Selectable device current limit

• Reduces size and cost of magnetics and output capacitor

• Allows the use of low-cost off-the-shelf inductors

• Frequency jittering reduces EMI

• 725 V MOSFET rating for excellent surge withstand

• Comprehensive safety and reliability features

• <150µA leakage in 2-wire no neutral designs

• No-load consumption <30mW with external bias

• Easily meets all global energy efficiency regulations


Key Applications:

• Smart home and building

• Appliances

• Industrial power supplies


LinkSwitch-TNZ Energy Efficient Off-line Switcher IC with Best-in-Class Light Load Efficiency and Lossless AC Zero-Cross Detection
LinkSwitch-TNZ Applications

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