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. It is used in conjunction with a current regulator that can achieve greater than 0.9 power factor 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 saving size and cost. Slew controlled low frequency operation of the TPS92411 switches creates very little EMI. Detailed operation is described in the 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 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 Lamp and Luminaires up to 70 W
  • Input Voltage Range: 7.5 V to 100 V
  • Stackable 100V, 2-Ω MOSFET Building Block
  • Up to 350 mA Current Capability (PSOP package)
  • Controlled Switch Open and Close Transitions Minimize EMI
  • 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    

Related end equipment

  • LED Lamps and Light Bulbs
  • LED Luminaires
  • Downlights

Featured tools and software

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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