WLD3343 General Purpose Driver for Laser Diodes

The WLD3343 is an innovative solution designed for space-constrained laser diode applications, offering a seamless integration into various systems. This analog circuit is engineered to maintain precision in laser diode current through constant current mode or to ensure stable photodiode current regulation in constant power mode. Its versatile electronics make it compatible with any laser diode type, providing a robust and reliable performance. The WLD3343 can safely deliver up to 3 Amps of current to your laser diode using a single +5 Volt power supply, making it an ideal choice for a wide range of applications, including VCSELs, electro-optical equipment, and medical/dental systems.

Compact yet powerful, the WLD3343 is designed for those who need a high-performance laser diode driver without sacrificing space. Its small package size (1.30” x 1.26” x 0.313”) ensures it fits into tight spaces, while still providing all the necessary functionalities. The device includes features such as slow start laser diode protection, voltage-controlled setpoint, and TTL compatible shutdown pin, all of which contribute to its safety and ease of use. The WLD3343 is also equipped with an adjustable current limit and range, making it highly adaptable to specific user needs.

Incorporating advanced thermal management, the WLD3343 supports up to 500 mA without additional cooling. For higher current operations, adding a heatsink and thermal washer allows for 1 A, while incorporating a fan enables operation up to 2 A. This flexibility ensures that the WLD3343 can be tailored to meet the demands of different environments and operational requirements, providing users with a comprehensive solution for their laser diode driving needs.