NT28L90-TR

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NT28L90-TR is an application-specific laser driver belonging to PMIC - Laser Drivers. It is a single-chip solution for high-power, high-efficiency laser operation applications that require multiple output current and pulse width modulation control, as well as a wide array of protection features. Going beyond providing basic current regulation and protection functions, this driver is capable of efficiently driving both continuous-wave and pulsed laser diodes. With its advanced current-mode regulation and pulse-width modulation capability, this driver offers a high level of precision in various laser applications.

Application Fields

The NT28L90-TR is designed for use in a variety of precision laser-based applications, including optical storage, optical switch, optical fiber sensing and testing, biochemistry and medical treatment, telecommunications, and more. As an IC specifically designed for laser diode driver applications, this device offers superior performance and efficiency compared to other laser drivers. Additionally, its low-noise, low-dropout and low-temperature characteristics make it a great choice for applications where accurate and repeatable results are required.

Working Principle

The NT28L90-TR laser diode driver is based on a current-mode control system, which operates in two distinct modes – active and standby. In active mode, the device performs power stages and can operate with either a constant current or pulse-width modulated output. During standby or sleep mode, the output current is reduced to zero.

The driver uses advanced digital signal processor (DSP) technology to accurately control the current output and adjust it as needed to achieve the desired power level. Additionally, it also provides protection functions such as over-voltage protection, over-temperature protection, and short-circuit protection. All of which can be configured via the on-chip SPI port.

The duty cycle of the pulse-width modulation can also be adjusted to regulate the laser emission power level. The current output is also modulated with a built-in DAC for further optimization. Furthermore, the driver is supplied with an adjustable bias voltage, allowing for the optimization of further parameters to deliver the desired performance.

In addition to these features, the NT28L90-TR laser driver also supports multiple output qualities such as 0.5A/0.7A/1.2A/1.5A/3.0A/3.3A/5.0A/10A/30A/50A/60A. It also provides optocoupler isolation up to 15kV. Its wide operating temperature range makes it suitable for industrial applications.

Overall, the NT28L90-TR is designed specifically to meet the needs of customers in diverse laser-based applications. Its superior performance and efficiency combined with its wide range of features makes it the perfect choice for any precision laser-based application.

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