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TPS92210EVM-613: 350mA @ 32V Max, 230V in, TRIAC

Summary

The TPS92210EVM-613 evaluation module is a constant current TRIAC dimmable LED driver. It can drive 9 to 10 LEDs at 350 mA and is rated for an AC input of 184 VRMS to 265 VRMS.

The TPS92210EVM-613 uses the TPS92210 in a Discontinuous Conduction Mode (DCM) flyback topology. The controller uses cascode configuration which allows for faster start-up times as well as eliminates the need for an external sense resistor for primary-side current sense.

Additionally, the controller employs a max on-time modulation scheme that allows it to be used in a Power Factor Correction (PFC) circuit. This results in a compact LED driver design that achieves greater than 0.95 power factor (PF) driven by a single controller.

The TPS92210EVM-613 is also compatible with a wide variety of TRIAC dimmers. Secondary-side feedback responds to the conduction time of the sinusoidal wave, as governed by the TRIAC, and appropriately lowers the LED current to dim the LEDs. The secondary side also includes an adaptive supplemental load that sinks current when LED current becomes too low, therefore ensuring conduction of the TRIAC during very low dimming.

Specifications

Manufacturer Texas Instruments
Category Lighting
Sub-Category LED Drivers - AC / Offline
Eval Board Part Number 296-28147-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
AC Voltage 230 V
Outputs and Type 1 Isolated
Current Out 350 mA
Voltage Out (Max) 32 V
Efficiency @ Conditions >86%, 230V in, 9 LEDs @ 350 mA
Features Dimming Control
Open Circuit Protection
Over Current Protection
Over Voltage Protection
PFC
Thermal Protection
Switching Frequency 115 kHz
Component Count + Extras 91 + 15
Design Author Texas Instruments
Application / Target Market LED Commercial Lighting
LED Home Lighting
Voltage In 184 ~ 265 VAC
Power Factor
Standard(s)
Main I.C. Base Part TPS92210
Date Created By Author
Date Added To Library 2011-11

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