Power Integrations introduces LinkSwitc-TN2 series ics to dramatically improve performance and save space

     Power Integrations introduces the LinkSwitc-TN2 series of ics for non-isolated offline power supplies that are highly integrated (built-in MOSFETs and controllers) and offer significant performance and space savings over conventional linear or capacitive step-downs. The built-in semiconductor in all devices, in addition to the traditional voltage of 725V, is launched up to 900V MOSFET, making the design and application more flexible,

     The controller also includes an oscillator, on/off control for maximum efficiency at light loads, a self-biased high-voltage switching current source, frequency Jitter, current limit (adjustable), hysteresis recovery overheat shutdown, and output and input overvoltage protection circuits, in addition to greatly reducing space costs and providing greater reliability. This series supports step-down, step-down and flyback converter architectures.

     The extremely low standby current consumption of the LinkSwitch-TN2 IC enables the power supply to be designed to meet the no-load and standby specifications required to meet regulatory requirements. This family supports step-down, step-down and flyback converter architectures.

     LinkSwitch-TN2 IC can simply adjust the required output voltage by using two external feedback resistors according to different applications. In addition to the commonly used 12Vdc output, LinkSwitch-TN2 IC can also be used in 3.3Vdc or 5Vdc to supply OPA/MCU/Relay parts. or for small wattage and need on board requirements, 19Vdc or 24Vdc or large sever power standby power, are commonly used range, and even other special voltage applications, can be adjusted with the load side, so the use is more diverse, and no matter what kind of application, PI because the built-in controller and high-voltage Mosfet belong to the same process, it is the biggest difference from the integrate soluTIon, especially reflected in the Performance of the product, because the characteristics are better, can save or reduce the surrounding many needs, for space, plate size, parts selection and so on. Are relative to the advantages.

     LinkSwitchTM-TN2 LNK3294G/P for 1.44W non-isolated buck Power Supply, often used in high-power system AUX Power applications, because the application has provided PWM signal MCU power supply, And provide the capture of voltage/current/temperature and other protection requirements of the OPA Power supply, to give the MCU judgment, to do further control, for the current gradually from analog to digital power market, has a simpler design on the version, while saving space, can also be independently beneficial to the small version, to avoid Power loop interference to the signal, This example applies a 900V Mosfet with a higher voltage RaTIng, which is also suitable for applications with a higher input voltage range, and maintains the rating specification of the parts. Finally, the IC is built with a variety of protection functions (OV/OC/OT), and no additional lines are required. First cut off all the Power supply, let the Power Shutdown, and then protect the risk of Damage to the product itself.