PI new LinkSwitch

Power Integrations today introduced the LinkSwitch-XT2 series of offline low power converter ICs, which offer high accuracy, high efficiency and excellent no-load performance. The LinkSwitch-XT2 IC is ideal for isolated and non-isolated flyback applications that require precise adjustment of output voltage and output current. The new IC delivers 6.1W of output power in a wide input range design and 9.2W of output power in 230VAC open applications.

The LinkSwitch-XT2 integrates a 725V power MOSFET, oscillator, simple on/off control, a high voltage switching current source, frequency modulation, cycle-by-cycle current limit, and thermal shutdown circuitry on a single IC. The power during startup and operation comes directly from the drain pin, eliminating the need for bias windings and associated circuitry.

Silvestro Fimiani, Senior Product Marketing Manager, said: "The LinkSwitch-XT2 IC is highly accurate, small size, high efficiency and excellent no-load performance, making it ideal for small appliances such as microwave ovens, Internet of Things (IoT), electricity meters, industrial control and intelligence. Small power applications such as home."

feature of product

1, easy to design

A switching device scheme with a minimum number of peripheral components;

Optional device current limit;

Fully integrated automatic restart for short circuit and open loop fault protection;

Optional self-powered circuit;

Frequency modulation greatly reduces EMI;

Ensure high-voltage creepage requirements between the high-voltage drain pin and all other pins, whether on the PCB or on the package;

Pin layout simplifies thermal design on the PCB;

2. Excellent performance over linear transformers and RCC

Output overvoltage protection (OVP);

Input overvoltage protection (OVL);

Hysteresis overheat protection (OTP);

The creepage distance between the drain and other pins is increased, which improves the reliability of the application;

Integrated 725V rated voltage MOSFET for excellent surge immunity;

The number of components is extremely small, increasing reliability;

Supports single-sided PCB boards and all designs using patch components;

3, EcoSmart – energy efficient

Easily meet all energy efficiency standards worldwide;

No-load energy consumption <100mW at 265VAC input without bias winding (<10mW with bias winding);

The on/off control provides constant efficiency at very light loads and is ideal for meeting mandatory CEC standards.