TI Releases New LED Drivers for Retrofitting Light Bulb Design Simplify

Industry’s smallest and easy-to-use drivers reduce component count and solution size

Texas Instruments Incorporated (TI) has introduced the industry’s smallest off-line, phase-dimmable, constant-current lighting controller and an easy-to-use lighting driver that simplify the retrofit of a variety of LED bulbs, including E14, GU10, A19, PAR20/30/38, MR16 and AR111. The TPS92075 controller and TPS92560 driver reduce component count and solution size while improving compatibility with legacy lighting controls.

The TPS92075 is designed for phase-dimmable, offline AC/DC LED lamp and downlight applications.  Offered in a very small 6-pin TSOT package, it achieves power factor correction above 0.9 while delivering smooth, flicker-free dimming when used with conventional wall dimmers. The TPS92560 is intended for use in low-voltage AC or low-voltage DC LED lamp applications such as MR16 and AR111. It uses a proprietary input current control method, which improves compatibility with electronic transformers.

The TPS92075 and TPS92560 join TI’s LED driver portfolio for retrofit bulbs that includes the LM3445, LM3447, TPS92310/11/14, LM3444 and LM3401.

Key features and benefits of TPS92075 and TPS92560:

TPS92075 for E14, GU10, A19 and PAR20/30/38 bulbs

  • Small 6-pin TSOT package measures 2.9 mm by 2.9 mm.
  • Step-down (buck) or step-up/step-down (buck-boost) operation suitable for 120-VAC or 230-VAC LED lamps and downlights.
  • Power factor correction greater than 0.9 meets regulatory requirements for lighting.
  • Flicker-free dimming compatible with TRIAC and trailing-edge dimmers.

TPS92560 for MR16 and AR111 bulbs

  • Simple hysteretic input current control scheme requires no complicated loop compensation and enhances compatibility with electronic transformers.
  • Integrated active low-side input rectifiers improve efficiency, simplify design and lower bill of materials.
  • Step-up (boost) or step-up/step-down (SEPIC) operation suitable for use with a variety of LED loads.
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