NT22L31-QFN-TR

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NT22L31-QFN-TR laser drivers are designed to control and drive lasers. These devices can accurately modulate the laser diode current over a wide range of current amplitudes. They are designed to improve the performance, lifetime and reproducibility of laser diode modules. These laser drivers provide an affordable, low power solution ideal for applications such as laser mass spectrometry, optical fault detection systems, Raman systems, laser sources, laser photothermal spectroscopy, and metrology systems.

The NT22L31-QFN-TR includes a built-in charge pump and power supply with extended operation from 9V to 24V. The device features an integrated high precision current and voltage regulator along with programmable analog current control. It is compatible with ultra-low power narrow-band laser diodes and has a fast response time (400nS). The device also includes a temperature monitoring system to help maintain long-term laser diode stability.

In terms of functionality, the NT22L31-QFN-TR features a wide range of safety features, such as a current limit, high temperature protection, and overload protection. It also offers a wide range of adjustable parameters, including current output limit, back current limit, output voltage, and voltage slew rate. The device has an integrated CAN interface that allows for remote control and monitoring. The device is approved to IEC 60950-1 and complies with the EN 60335-1 standard.

The working principle of the NT22L31-QFN-TR is based on two basic concepts: current regulation and beam steering. The current regulation ensures the correct amount of current is delivered to the laser diode. This is achieved by a circuit that compares the current detected at the diode to the target value. If the sensed current does not match the target current, the circuit adjusts its output to bring the current in line with the target.

The beam steering component of the device controls the direction of the laser beam. This is achieved by controlling the current to the motors connected to the mirrors that control the direction of the beam. In this way, the laser beam can be steered precisely. The NT22L31-QFN-TR also includes a thermal monitor that regulates the temperature of the laser diode, as this can affect its output and lifetime.

Overall, the NT22L31-QFN-TR is a powerful and versatile laser driver that provides an affordable, low power solution for laser diode applications. The device offers a fast response time and a wide range of safety features, adjustable parameters, and monitoring capabilities. Its integrated CAN interface allows for remote control and monitoring. The device is designed to improve the performance, lifetime and reproducibility of laser diode modules and is suitable for a variety of laser applications.

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