Power Integrations LinkSwitch™-TNZ

The LinkSwitch-TNZ offline switching power supply IC family reduces standby consumption by up to 60% in smart home and building applications and white goods.

Combining offline power conversion, lossless zero-cross detection and optional X-capacitor discharge functions in a compact SO-8C package, the highly efficient switcher can be used for non-isolated buck and buck-boost power supplies up to 575 mA output current and can provide up to 12 W output for universal input isolated flyback designs.

LinkSwitch-TNZ ICs enable ±3% regulation across line and load, no-load consumption of less than 30 mW, and an IC standby current of less than 100 µA.

Key features

• Lossless zero-cross detection and signal generation
• Supports buck, buck-boost and flyback topologies
• Optional X-capacitor discharge function
• Easily meets all global energy efficiency regulations

Additional features

• 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
• Less than 150 µA leakage in 2-wire no neutral designs
• No-load consumption less than 30 mW with external bias

Applications

• Smart home and building automation
• IoT, HBA and industrial controls
• Dimmers, switches and sensors with and without neutral wire
• White goods

Available Tools

• Complete your LinkSwitch-TNZ design in minutes with the PI Expert tool.