Do you know what does a laser driver mean, and how to choose a good and high quality laser driver in such a complicated and huge internet? As an engineer engaged in the analog electronics for more than 10 years, let me give you some guidance. First, laser driver is an electronic module designed for driving diode lasers. Then what features or characteristics should a good laser driver have are also very essential, such as constant current, high efficiency, low noise, high reliability, zero EMI, and small package and so on. Today let me introduce one high efficiency constant current laser controller, whose part No. is ATLS2A201. Please take a look at its physical photo of this laser driver.
As for the reasons why I want to introduce this laser driver, it can be concluded as below: wide input voltage ranges from 5.5V to 27V; wide output voltage ranges from 0.1VPS to 0.8VPS; most importantly, its maximum output current can be 2A; it can work with high efficiency, over 90%.
It provides these the functions: laser constant current control, laser current monitoring, over current and thermal protection, laser current control indication, laser diode status indication, soft start, and shut down. Compact size is another important feature of it, whose size is 35.78×35.78×11.5 (mm).
For applications, it is designed to drive one or multiple laser diodes for DPSSL, EDFA, and fiber lasers with low noise and high efficiency.
If you want to know more about it, please refer to its datasheet.