Floating Switch for Offline AC Linear Direct Drive of LEDs with Low Ripple Current - TPS92411

TPS92411 (ACTIVE)

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

 

 

Description

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).

Features

  • 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)

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Parametrics Compare all products in LED Lighting - Illumination

 
Input Voltage (Type)
Vin (Min) (V)
Vin (Max) (V)
Iout (Max) (A)
Vout (Min) (V)
Vout (Max) (V)
Regulated Outputs (#)
Topology
Dimming Method
Power Factor Correction (Min)
Type
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Vref (V)
Special Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS92411
AC/DC    
8    
94    
0.35    
9    
94    
1    
Current Sink    
Forward Phase (Triac)
Reverse Phase    
Natural    
Linear    
0    
0    
0.2    
0.21    
Soft Switching    
Catalog    
-40 to 150    
5SOT-23
8SO PowerPAD    
0.23 | 1ku    

Companion parts

Part # Name Product Family Comments
TPS92410   Switch-Controlled, Direct Drive, Linear Controller for Offline LED Drivers   LED DRIVER - LED LIGHTING    
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