Date: 11/11/2010

Single-stage LED lighting PWM controller from TI for general lighting applications

Texas Instruments Incorporated (TI) has unveiled a new single-stage LED lighting pulse width modulation (PWM) controller. The TPS92210 is designed for general lighting applications, such as commercial and residential recessed, troffer, light bulb replacement, architectural and display lighting. This TRIAC-dimmable solution regulates LED current and can also achieve near unity power factor. The reference design can achieve 85 percent efficiency.

The key features of TPS92210 include:
1. TPS92210 features flexible operation modes such as peak primary current, constant on-time and frequency modulation.
2. TPS92210's cascoded MOSFET configuration results in 10 percent lower switching losses compared to competing devices, according to TI.
3. Continuous linear TRIAC dimming provides flicker-free, uniform control.
4. Consists of multiple protection features, such as over voltage protection without optocouplers, thermal shutdown and advanced over current, safely shut down the system if fault conditions exist.
5. Programmable fault response, full shutdown and shutdown restart provide added flexibility for fault response.

Package: 8-pin SOIC

Price: US$0.70 for 1K pieces

Availability:
TPS92210: Now
TPS92210 evaluation modules (120-V and 230-V versions): December 2010.