LNK3304D-TL

LinkSwitch-TNZ, a new switching power supply IC family that reduces standby consumption by up to 60% in smart home applications and white goods. Combines offline power conversion, lossless zero-cross detection and optional X-capacitor discharge functions in a compact SO-8C package. Typical discrete AC zero-cross detection circuits require many components and can consume up to half of the standby power budget in typical applications. With integrated lossless AC zero-cross detection, IC provides best-in-class light load efficiencies, enabling more system features to be powered in standby while still meeting stringent standby regulations. LinkSwitch-TNZ switching power supply ICs enable ±3% regulation across line and load, no-load consumption of less than 30mW with external bias and have an IC standby current of less than 100µA. Applications include smart home and building automation, IoT, HBA, industrial controls, dimmers, switches and sensors with and without neutral wire, white goods.

• 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
• 725V MOSFET rating for excellent surge withstand
• Comprehensive safety and reliability features
• <lt/>150µA leakage in 2-wire no neutral designs
• Component count is reduced by more than 40% compared to discrete designs
• Easily meets all global energy efficiency regulations