MAX3669EHJ-T

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Laser drivers are important devices in PMIC (Power Management Integrated Circuits) networks, as they provide efficient power extraction from batteries and power supplies. The MAX3669EHJ-T offers a high-performance, power-managed solution for high-power laser applications such as ophthalmic and barcode scanning. The device features a current-mode control with a wide input voltage range of 4.5 and 36 V, 400 A peak LED output current, dynamic driver current limit and temperature regulation.

The MAX3669EHJ-T is a bidirectional device that is capable of operating from a variety of input voltage sources, including battery, USB and other regulated power sources. It has an adjustable output current range of 0 to 400 A peak, with a continuous output current limit of 25 A. The dynamic driver current limit can be adjusted from 12 to 100 A, and when the driver current limit is exceeded, the device automatically reduces the output current to the set limit.

The MAX3669EHJ-T has a wide temperature operating range of -40°C to +125°C, and has a thermal shutdown function to protect the device from damage in extreme conditions. The device also features built-in short-circuit and over-voltage protection and advanced power management features that maximize battery lifetime in portable devices. With a flexible design and a variety of features, the MAX3669EHJ-T is an ideal solution for high-power laser applications.

To further maximize performance and efficiency in these applications, the MAX3669EHJ-T features an advanced current-mode control scheme with a wide input voltage range. The input voltage range span covers both battery systems, as well as USB and other regulated power sources. This wide input voltage range provides the MAX3669EHJ-T with the flexibility to optimize performance for a variety of applications.

The current-mode control allows the device to accurately regulate the output current to a desired level. The output current is adjusted using an adjustable external current set resistor. This resistor can be set to any value from 0 to 400 A peak, with a continuous output current limit of 25 A.

The current-mode control also allows for precise power regulation by incorporating a dynamic driver current limit. The dynamic driver current limit can be adjusted from 12 to 100 A, depending on required output current, and when the driver current limit is exceeded, the device automatically reduces the output current to the set limit. This feature helps maximize system efficiency and extend battery life in portable applications by preventing current spikes or overheating.

In addition, the MAX3669EHJ-T features advanced power management features, such as over-voltage protection, short-circuit protection, low-voltage shutdown, thermal shutdown and current foldback, which help protect the device from damage caused by extreme conditions or incorrect use. The device also incorporates a watchdog timer to help detect and prevent unexpected system errors.

The MAX3669EHJ-T is the ideal solution for high-power laser applications such as ophthalmic and barcode scanning. Its high efficiency design, wide input voltage range, dynamic driver current limit and advanced power management features make it a reliable and efficient solution for these applications. The device is available in an 8-pin ThinSOT package.

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