Low leakage current (150 µA) makes it ideal for driving most VCSELs. It
operates from 3 to 12 V, so it is compatible with Li+ battery
operation. It can be configured as two totally independent 250 mA
drivers or a single 500 mA driver. Compatible with Type A or B laser
diodes. Because of it's small size and low noise, it is often used in
handheld devices and spectroscopy systems.
The base unit operates in Constant Current (CC) mode. The only external components required are a power supply, an analog control voltage, your laser and optional filtering circuitry.
For additional features, including current limit and photodiode feedback for Constant Power operation, use the FL591FL evaluation board with controller.