LinkSwitch Family
LinkSwitch Family products incorporate a high-voltage power MOSFET, oscillator, simple ON/OFF control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The startup and operating power are derived directly from the DRAIN pin, eliminating the need for a bias winding and associated circuitry.
EcoSmart® technology enables designs to easily meet current no-load consumption efficiency standards set forth by the California Energy Commission (CEC), US Government, and other regulatory agencies.
Typical applications include:
- LED Lighting Drivers
- Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio players, and shavers
- Supplies for appliances, industrial systems, and metering
LinkSwitch-PH – LinkSwitch-PH dramatically simplifies offline LED driver designs requiring flicker-free TRIAC dimming, high power factor, and high efficiency. This highly integrated controller and power MOSFET introduces a novel control technique that provides active power factor correction, accurate constant current output and primary side control, and eliminates external circuitry required for power factor correction, an optocoupler, and supporting secondary current control circuitry. LinkSwitch-PH is optimized for isolated designs, operates over a wide input voltage range and delivers output power up to 50 W.
LinkSwitch-PL – Designed for compact solid state lighting replacement lamps, LinkSwitch-PL enables very small and low cost TRIAC-dimmable, single-stage, power factor corrected, constant current offline LED drivers. LinkSwitch-PL is optimized for non-isolated systems, operates over a wide input voltage range and delivers output power up to 16 W. Its innovative control algorithm provides flicker-free TRIAC dimming with minimal external components.
LinkSwitch-CV - LinkSwitch-CV dramatically simplifies CV power supply design with tight CV requirements and by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage regulation, along with input voltage variations and temperature.
LinkSwitch-II - Designed for low power adapters and chargers (cell/cordless phones, PDAs, digital cameras, portable audio etc), LinkSwitch-II dramatically simplifies low power CV/CC charger designs by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage and current regulation, compensating for transformer and internal parameter tolerances along with input voltage variations.
LinkSwitch-XT - Designed for low power adapters and chargers (cell/cordless phones, PDAs, digital cameras, portable audio etc), as well as auxiliary supplies employed in applications such as white goods
LinkSwitch-LP - Designed to replace inefficient line frequency linear transformer based power supplies with output powers < 2.5 W in applications such as cell/cordless phones, PDAs, digital cameras, and portable audio players, as well as auxiliary supplies employed in applications such as white goods.
LinkSwitch-TN - Designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360 mA output current range at equal system cost while offering much higher performance and energy efficiency.
