Dual mode off-line controller for non-dimmable LED lighting
March 20, 2012 // Paul Buckley
Texas Instruments Incorporated has introduced a new off-line primary side sensing controller to the company's portfolio of non-dimming LED drivers. The new TPS92310 AC/DC constant current driver with power factor correction (PFC) reduces cost and shrinks-to-fit in high-power LED retrofit bulbs, including A19, PAR30/38 and GU10.
The TPS92310 is the first in a family of primary side, regulated controllers with PFC. In May, TI will offer the TPS92311 with similar features and an integrated, 600V power FET with avalanche energy capability, further reducing solution size and component count. The TPS92310 and TPS92311 join TI’s portfolio of off-line LED lighting controllers that include the National LM3445, the industry’s first TRIAC dimmable LED driver with both full-range and flicker-free dimming.
The TPS92310 LED driver’s AC input voltage supports all common line voltages (100 V, 120 V, 230 V, 240 V, 277 V), including US commercial.
The device’s true primary side sensing and regulation provides accurate LED current regulation, eliminating optocoupler, secondary error amplifier and associated passive components. B ill of materials is reduced by 14 percent or more compared to today’s solutions.
The device can select from dual operating modes. Adaptive constant on-time (COT) provides inherent power factor correction with no external components. PFC reduces the EMI signature to ensure regulatory approval. Peak current control provides low LED current ripple to minimize stroboscopic effects. Critical-Conduction-Mode (CCM) with Zero-Current Detection (ZCD) provides valley switching for improved power conversion efficiency and low-EMI. Cycle-by-cycle current limit, over/under voltage protection and thermal shutdown also protects the LED driver and user against fault and abnormal operating conditions.
Toshiba considers listing or partial sale of chip business
November 30, 2015
Toshiba Corp. said Friday (Nov. 27) that it was considering splitting off its semiconductor business with listing it as a ...
Transparent LED displays built on monolayer semiconductors
Startup wants to be the ARM of neuromorphic cores
A tech correction is coming
Delayed roadmap set for debut at TSensors Summit
Tower buys Maxim's Texas wafer fab
November 27, 2015
Foundry Tower Semiconductor Ltd. (Migdal Haemek, Israel) is set to buy an 8-inch wafer fab in San Antonio, Texas, from Maxim ...
Deterministic motor control with FPGAs
LG Display plans multi-billion dollar OLED plant investment
Hybrid sensor spots cable fires before they start burning
- Battery Size Matters
- Software-Defined Radio Handbook - 11th edition
- Multichemistry Buck Battery Charger Controller
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: InvenSense's Abdi on expanding MEMS horizons
InvenSense Inc. is a MEMS company that has epitomized a fabless approach to a sector that is still highly reliant on a thorough grasp of the manufacturing and packaging processes. We interviewed CEO Behrooz ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Microsemi is giving away two SmartFusion2 dual-axis motor control starter kits, worth 9 each, for EETimes Europe's readers to win.
The kit will let you try out Microsemi's deterministic motor control solution, compliant with industry coding standards for developing safe and reliable software for embedded applications.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.