TPS92411 Texas instruments

TPS92411

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TPS92411

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Описание

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).

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 I_Q: 200 µA (typ)

Input voltage type	AC Linear
Topology	AC Direct-Drive, Floating Switch
Vin (min) (V)	8
Vin (max) (V)	94
Vout (max) (V)	94
Vout (min) (V)	9
Iout (max) (A)	0.35
Iq (typ) (mA)	0.2
Features	Soft Switching
Operating temperature range (°C)	-40 to 150
Dimming method	Forward Phase (Triac), Reverse Phase
Number of channels	1
Rating	Catalog