The design helps management LED lights utilizing much less energy. It helps dimming, works with gentle sensors, and saves vitality in indoor or out of doors areas.
Texas Devices’ TIDA-01095 is a DC-DC LED driver reference design made for high-power, dimmable lighting purposes. It makes use of a wi-fi system-on-chip (SoC) platform that allows gentle management by way of analog dimming, PWM, or Bluetooth Low Power (BLE). The design additionally helps daylight harvesting by pairing with ambient gentle sensors, providing further vitality financial savings—as much as 50%—by routinely adjusting gentle output based mostly on pure gentle availability.
This reference design is geared toward industrial and industrial lighting setups, together with indoor high-bay and low-bay fixtures generally utilized in warehouses, factories, and enormous amenities. It can be utilized in out of doors environments, equivalent to space lights and road lights, and helps distributed DC lighting programs the place energy is managed centrally and delivered throughout a number of fixtures.
The system makes use of environment friendly DC-DC energy conversion and permits for each handbook and automated dimming management. It helps vitality financial savings not simply by way of the swap to LED lighting but additionally by way of the mixing of sensors and related management programs. When pure daylight will increase in an area, the lighting system can scale back synthetic gentle output, slicing energy use with out affecting illumination ranges.
On the coronary heart of the design are the TPS92640 and TPS92641 high-voltage synchronous NFET controllers, utilized in buck-current regulator configurations. These controllers regulate output present utilizing valley current-mode management with a managed on-time structure. This technique retains the switching frequency practically fixed and simplifies loop compensation, enhancing system stability.
The units embody a high-voltage start-up regulator that helps a large enter voltage vary from 7 V to 85 V. The built-in PWM controller helps high-speed switching, as much as 1 MHz. Deadtime between the high-side and low-side gate drivers is optimized for top effectivity throughout a broad vary of enter voltages and cargo circumstances.
Each controllers assist analog and PWM dimming inputs, permitting versatile dimming management. A low-offset error amplifier and proprietary PWM dimming logic guarantee linear response and permit the LED present to drop to true zero when wanted. A precision reference output can be included to energy a low-power microcontroller if wanted.
Safety options embody cycle-by-cycle present limiting, overvoltage safety, and thermal shutdown. The TPS92641 moreover helps shunt FET dimming and features a built-in MOSFET driver for high-resolution PWM dimming.
General, the design combines energy-efficient LED lighting with versatile, sensor-based management and strong energy conversion. It helps lengthy operational life, secure gentle output, and easy dimming, making it a powerful match for industrial, industrial, and good lighting programs.
TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has further information concerning the reference design. To learn extra about this reference design, click on right here.
