The evaluation board, ATLS202DEV1.0, is designed for evaluating the laser driver series:ATLS500MA202D, ATLS1A202D, ATLS2A202D, ATLS3A202D and ATLS4A202D. The main purpose for using this evaluation board is to effortlessly assess the laser drivers’ performance.

This laser driver evaluation board comes with an unbreakable dummy laser diode formed by a series of regular diodes. It has a complete application circuit, with an LED to indicate the working status of the driver, and a fan for reducing the temperature of the dummy laser diode when being driven by high current. This laser controller evaluation board is of 100 % lead (Pb)-free and RoHS compliant.

The ATLSxA202D is a series of high efficiency electronic modules designed for driving diode lasers with low noise constant current. It has high reliability, zero EMI (Electro- Magnetic Interference), and is encased in a small DIP package.

The series includes ATLS500MA202D, ATLS1A202D, ATLS2A202D, ATLS3A202D and ATLS4A202D and ATLS6A202D. The output voltage range is from 0V to 4V when powered by a 5V power supply.

The evaluation board designed for your convenience to efficiently assess this series of laser driver modules is the ATLS202DEV1.0 and it is highly recommended you read the information in the datasheet for important application guidelines. It is also recommended to read this application note with the ATLSxA202D datasheet which provides more detail information about the specifications and application guidelines for the laser driver modules.

The main purpose of using the evaluation board is to drive a voltage configurable and unbreakable dummy laser diode by using the laser driver with a programmable current. The dummy laser on the board emulates the user’s expensive real laser diode so that in case there is a faulty circuit or an improper operation, the real laser would not be damaged. After making sure the driver works properly and all the features and set-values meet the requirements of the application, the user can disconnect the dummy laser from the driver by flipping a switch and connect a real diode laser onto proper connections of the board. At the same time, the user can set and monitor the output current, monitor the working status of the driver, etc.