Texas Instruments TPS92411
100V Floating MOSFET Switch
Texas Instruments TPS92411 100V floating MOSFET switch is used in conjunction with a current regulator that can achieve greater than 0.9 power factor to create an offline LED drive solution with low-ripple current. When properly designed, solution performance is comparable to traditional flyback, buck or boost based AC/DC LED drivers. The approach requires no inductive components saving size and cost. Slew controlled low frequency operation of the TPS92411 switches creates very little EMI. Package options include SOT23-5 and PSOP-8, allowing the user to optimize for small size or scale for high power. Using the PSOP-8 package, design of the LED luminaires up to 70W is possible. Other features include a UVLO circuit to monitor when the device has sufficient voltage to operate properly and over voltage protection (TPS92411P).