WLD3343 Laser Diode Driver
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United States
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On FindLight:
since 2015
Description
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.
WLD3343 Laser Diode Driver
Specifications |
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|---|---|
| Output Current: | Up to 3 Amps |
| Power Supply Input: | +5 Volt |
| Constant Current Bandwidth: | 2 MHz |
| Package Size: | 1.30” X 1.26” X 0.313” |
| Output Current With Heatsink & Thermal Washer: | 1 A |
| Output Current With Fan: | 2 A |
| Fan Power Supply: | +12 VDC |
| Fan Power Supply: | +5 VDC |
Features
- Low Cost: Designed to be affordable for various applications.
- Slow Start Laser Diode Protection: Prevents damage by gradually increasing current.
- Drive Up to 3 Amps Output Current: Capable of supplying significant power to laser diodes.
- Constant Current or Power Operation: Offers flexibility in maintaining stable laser performance.
- Compatible With Any Laser Diode Type: Versatile design suitable for various laser diodes.
- Small Package Size: Compact dimensions of 1.30” x 1.26” x 0.313” for space-constrained applications.
- Voltage Controlled Setpoint: Easily adjust the laser diode current setpoint.
- TTL Compatible Shutdown Pin: Allows for easy integration with digital systems for on/off control.
- Adjustable Current Limit: Customize the maximum current output for safety and performance.
- Adjustable Current Range: Provides flexibility in current settings to match application needs.
- 2 MHz Constant Current Bandwidth: Ensures rapid response and stability in current regulation.
- Over Temperature Shutdown: Protects the system by shutting down when overheating is detected.
- 14-Pin DIP PCB Mount: Standard pin configuration for easy integration into circuits.
Applications
- Space Constrained Applications: Ideal for applications where space is limited, providing an easy-to-use analog circuit.
- Laser Diode Current Regulation: Maintains precision laser diode current in constant current mode or stable photodiode current in constant power mode.
- Compatibility: Compatible with any laser diode type, offering versatility for various projects.
- High Current Supply: Safely supplies up to 3 Amps of current to your laser diode from a single +5 Volt power supply.
- Versatile Use: Excellent for VCSELs, electro-optical equipment, and medical/dental systems.
Frequently Asked Questions
Other related products include the WLD3343HB for Lithium-Ion batteries, the WLD3343-3A for 3 A operation, the WLD3343-2L and WLD3343-3L for lower noise in Constant Current Mode only, and the WLD3393 evaluation board. Heatsinking solutions are also available to use the WLD3343 at full current.
The features of the WLD3343 include slow start laser diode protection, constant current or power operation, adjustable current limit and range, voltage controlled setpoint, and over temperature shutdown.
The WLD3343 is ideal for applications where space is tight and is widely used in electro-optic instrumentation, spectrometers, medical diagnostic equipment, range finders, and on research benches.
The WLD3343 is a general purpose laser diode driver that maintains precision laser diode current or stable photodiode current using electronics that are compatible with any laser diode type.
The current range of the WLD3343 is scaled by an external resistor and can supply up to 2.2 A of current to your laser diode from a single +5 V power source.