Diodes Incorporated‘s AL5809, offered in a robust two-terminal PowerDI®-123 package, provides an improved accuracy, cost-effective solution for constant-current linear driving of LEDs. With its 1.2W maximum power dissipation, temperature stability of 20ppm/ degrees C and high power-supply rejection ratio, the AL5809 delivers LED currents with a ±5% tolerance over a wide temperature range, greatly simplifying the solutions for its target applications of LED signage, LED strip lighting and low-current retrofit lamps.
Recommended: 20A Step-Down Regulator Optimized for Low Vin to Low Vout
The AL5809 is specified for the -40 to +125 degrees C temperature range, with an operating voltage (between the two terminals) from 2.5V to 60V and is offered in various fixed-output current versions; this removes the need for external current setting resistors. The PowerDI-123 package fixed-output current options are 15mA, 20mA, 30mA, 40mA, 50mA, 60mA, 90mA, 120mA and 150mA, while in the alternative SOD-123 package there are current output versions of 15mA, 20mA, 30mA, 40mA and 50mA.
Related: 32-Bit MCUs feature Rich Peripheral Set and Support for Bluetooth
In 10k quantities, the AL5809 Constant Current Linear LED Driver from Diodes Incorporated is priced at: $0.10 USD each for the SOD-123 packaged devices, $0.11 USD each for the 15-50mA parts in the PowerDI-123 package, and $0.12 USD each for the higher current 60-150mA PowerDI-123 packaged devices.
source: http://www.powerpulse.net/story.php?storyID=31237
Comments are closed.
