Texas Instruments Introduces TPS92550 and TPS92551 DC/DC LED Driver Modules

Texas Instruments announced their TPS92550 and TPS92551 DC/DC LED driver modules. The fully integrated LED driver micro-modules are the first to include all the required power and passive circuitry into a single IC package to deliver up to 23W of power to the LED. The new TI chips eliminate the external components and complex layout placement challenges typical of LED driver designs. The TPS92550 and TPS92551 are available now in a 7-pin TO-PMOD package. The 14-W TPS92550 is priced at $5 and the 23-W TPS92551 is priced at $5.50 in 1,000-unit quantities.

The TI 14-W TPS92550 and 23-W TPS92551 LED drivers are constant current buck modules that virtually eliminate the need for power supply design resources and simplify procurement. One module replaces four or more components. The new LED driver modules with TI’s WEBENCH LED Architect help lighting developer quickly design power management circuits with the minimum components needed to drive a string of up to 18 LEDs at up to 96% power efficiency. This results in a fast, easy and compact LED lighting design.

TI TPS92550 and TPS92551 LED Driver Modules

  • Integrates power inductor, Schottky diode and other passive components
  • LED current is adjustable from 300 mA to 450 mA
  • Low Electro Magnetic Interference (EMI) complies with EN55015 standard
  • Thermal shutdown and RoHS compliant
  • -40°C to +125°C junction temperature range
  • Wide input voltage range : 4.5V – 36V
  • Constant switching frequency at 400kHz (TPS92550)
  • Constant switching frequency at 800kHz (TPS92551)
  • High contrast ratio (Minimum dimming current pulse width <16µs)
  • Drives up to 10 LEDs in series at 36V input (TPS92550)
  • Drives up to 16 LEDs in series at 60V input (TPS92551)
  • ±3.6% typical LED current accuracy (TPS92550)
  • ±3.5% typical LED current accuracy (TPS92551)
  • Up to 96% efficiency (TPS92550)
  • Up to 95% efficiency (TPS92551)
  • Input Under-Voltage Lock-Out (UVLO)
  • Compatible with ceramic and low ESR capacitors
  • LED open and short circuit protections
  • Compact package measures 10.16 mm by 9.85 mm by 4.57 mm

More info: TPS92550 | TPS92551 (pdf)