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Floating Switch for Offline AC Linear Direct Drive of LEDs with Low Ripple Current


Package | PIN: DDA | 8
Temp: S (-40 to 150)
Carrier: Cut Tape
Qty Price
1-9 $0.45
10-24 $0.40
25-99 $0.37
100-249 $0.32
250-499 $0.29
500-749 $0.24
750-999 $0.19
1000+ $0.17


  • High-Performance Solution for Driving LEDs from AC Mains
  • Simplifies Design of Phase Dimmable LED Driver with High Power
    Factor, Low Total Harmonic Distortion, and Low Current Ripple
  • Suitable for LED Luminaires up to 70+ W
  • Input Voltage Range: 7.5 V to 100 V
  • Stackable 100 V, 2-Ω MOSFET Building Block
  • Controlled Switch Open and Close Transitions Minimize EMI
  • Designed for use with the TPS92410 or with a Discrete
    Linear Regulator
  • Input Undervoltage Protection
  • Output Overvoltage Protection (TPS92411P)
  • Low IQ: 200 µA (typ)

Texas Instruments  TPS92411PDDAR

The TPS92411 is a 100-V floating MOSFET switch for use in offline LED lighting applications. The device is used in conjunction with a current regulator that can achieve a power factor greater than 0.9 to create a 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, thus saving size and cost. Slew-controlled low-frequency operation of the TPS92411 switches creates very little EMI. Detailed operation is described in the Application Information section.

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 LED luminaires up to 70 W or more is possible. Other features include a UVLO circuit to monitor when the device has sufficient voltage to operate properly and over-voltage protection (TPS92411P).