Diodes Incorporated AL5809 Constant Current LED Driver

Diodes Inc. AL5809 constant current LED drivers deliver a simple solution to linear driving of LED chains with a two pin packages. It has excellent temperature stability and current accuracy regulated over a wide voltage and temperature range. The AL5809 drivers can swing 2.5V to 60V to enable it to drive a variety of lengths of LED chain. The AL5809 series comes in various fixed output current versions which remove the need for an external current setting resistor. It supports both high-side and low-side driving of LED chains.

The AL5809 turns on when the voltage between IN and OUT swings from 2.5V up to 60V enabling it drive long LED chains. The floating ground, 60V Voltage rating between Input and Output pins designed to withstand the high peak voltage incurred in offline applications.

The AL5809 is available in either thermally robust package PowerDI123 or SOD-123 package.

Features

AL5809: Robust power package up to 2.3W for POWERDI-123
AL5809Q: Robust power dissipation up to 1.5W for POWERDI-123 (Type B)
-40°C to +150°C Temperature range
AL5809: ±3% LED current tolerance

AL5809Q: ±5% LED Current tolerance overtemperature and V_INOUT
15mA, 20mA, 25mA, 30mA, 40mA, 50mA, 60mA, 90mA, 100mA, 120mA, and 150mA constant current options
Constant current with low temperature drift and high Power supply rejection ratio
2.5V to 60V Operating voltage between two terminals