MAX8790ETP+

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MAX8790ETP+ PMIC - LED Driver includes a boost switch regulator, a high voltage switch, and two LEDs that together provide high current operation, high efficiency, and reliable regulation and control. The compact design of MAX8790ETP+ makes it ideal for battery-powered applications such as backlighting, camera flash, and medical devices.

Application Field

The MAX8790ETP+ is a PMIC - LED driver ideally suited for low-cost, battery-powered applications. It is designed to provide a high efficiency, wide input voltage range, low occurrence of shutdowns, and only a few external components required.

Applications for the MAX8790ETP+ range from high performance LED backlighting and constant current regulation in industrial LCD displays to camera flashes and medical applications. It is also suitable for battery-powered smartphones, cameras, and portable gaming devices, as well as for embedded applications, automotive lighting, and wearable devices, where the need for high efficiency, low ripple, and low noise are essential.

Working Principle

The MAX8790ETP+ consists of two independent LED drivers and a current regulator. The two LED drivers provide high current, efficient operation, while the current regulator provides feedback to regulate the two LED currents.

The MAX8790ETP+ also includes an internal voltage divider to sense the current in each LED string and adjust the output of the LED driver accordingly. The current regulator fine-tunes the LED current to maintain a tight LED current control.

When the LED current exceeds the upper limit, the current regulator reduces the LED current to prevent over-current faults. At the same time, the LED drivers will enter a low power stand-by mode to save power.

The MAX8790ETP+ also features a built-in programmable over-voltage protection circuit that limits the output of the LED drivers to safe values in case of an over-voltage or over-current fault. Once the fault is cleared, the LED drivers automatically resume the normal operation with no extra reset action required.

The MAX8790ETP+ also includes a high voltage switch driver, which allows the two LED drivers to be parallel-connected and controlled with a single control signal. The switch driver is also equipped with an over-temperature protection circuit to protect the LEDs and switch driver from heavy thermal loads.

In addition, the MAX8790ETP+ comes with a built-in thermal shutdown circuit that prevents system failures due to overheating. The thermal shutdown threshold can be adjusted to suit any application.

The MAX8790ETP+ is designed to provide high efficiency, wide input voltage range, low occurrence of shutdowns, and only a few external components required. The MAX8790ETP+ provides high current, efficient operation, and reliable regulation and control for a variety of lighting applications.

The specific data is subject to PDF, and the above content is for reference