LT8391IUFD#PBF

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 LT8391IUFD#PBF is a high-efficiency LED driver IC with integrated boost converter and low-side switch configuration. It is used to power LED loads up to 30V and with up to 5A of output current. The device has a wide input voltage range of 5.5V to 24V and a wide operating temperature range of -40°C to 85°C.

The LT8391IUFD#PBF is primarily used in Power Management IC (PMIC) applications, such as LED lighting, riser equipment, and communication systems. It is also suitable for automotive, consumer, industrial, and medical applications. It is capable of driving both single or multiple independent LEDs with its wide output voltage range, short-to-ground protection, and high-current operation.

The LT8391IUFD#PBF enables high light output and stability due to its integrated power stage, which is made up of an inductor and a switching element. It incorporates many robust features including short-circuit protection, short-to-ground protection, and over-temperature protection. In addition, the device integrates a high-side voltage sense option, which improves system efficiency and performance.

The working principle of the LT8391IUFD#PBF is based on hysteretic control. It consists of two high and low voltage thresholds, as well as a reference voltage, which are used to provide a hysteretic switching behavior to the current output of the device. The switching of the hysteretic controller is controlled by the FB pin, which is connected to a feedback resistor, RFB. As the output voltage increases and continues beyond the high voltage threshold, the device will automatically switch off the output current. If the output voltage decreases and continues to fall below the low voltage threshold, the device will then automatically switch on the output current.

In summary, the LT8391IUFD#PBF is a cost-effective and high-efficiency LED driver IC that is capable of driving high-current LED loads. It is suitable for PMIC applications and provides features such as wide input voltage range, over-temperature protection, and adjustable current and voltage settings. The IC operates using hysteretic control which utilizes switching elements, reference voltages, and two high/low voltage thresholds to switch the current output between on and off states. This makes it an ideal device for a variety of common PMIC applications and LED lighting projects.

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