LT8391IFE#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	DC DC Controller
Topology:	Step-Down (Buck), Step-Up (Boost)
Internal Switch(s):	No
Number of Outputs:	1
Voltage - Supply (Min):	4V
Voltage - Supply (Max):	60V
Voltage - Output:	60V
Current - Output / Channel:	--
Frequency:	150kHz ~ 650kHz
Dimming:	Analog, PWM
Applications:	Automotive, Lighting
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	28-TSSOP-EP
Base Part Number:	LT8391

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PMIC - LED Drivers: LT8391IFE#TRPBF

Light-emitting diodes (LEDs) are becoming increasingly important components in a variety of electronic systems. For instance, LED lighting is becoming widespread and widely used for general illumination purposes. LED components require a driver to control the intensity and frequency of the LEDs, and this is where the LT8391IFE#TRPBF driver comes into the picture.The LT8391IFE#TRPBF is a low-cost, high-performance, current-mode single-string LED driver from Linear Technology. It is designed for driving strings with up to 24 LEDs in series, and is capable of providing up to 1.2A of output current with a switching frequency ranging from 200-500 kHz.The LT8391IFE#TRPBF has a wide range of features that makes it suitable for many applications. These features include an adjustable constant current foldback feature, which enables the driver to reduce the output current when the output voltage reaches the specified limit, thereby protecting the LEDs from over-current conditions. It also features an adjustable soft start feature, which enables the driver to gradually increase the current level when the driver is switched on, helping to ensure the LEDs are not damaged due to current surges. Finally, it has very low output noise levels which enable it to be used in applications where noise levels need to be kept to a minimum.In addition, the LT8391IFE#TRPBF has an integrated temperature monitoring feature that enables it to monitor the temperature of the LEDs and limit the current output if the temperature exceeds the specified threshold. This helps to protect the LEDs from any potential damage due to thermal runaway or other problems.The main principle of operation for the LT8391IFE#TRPBF is the current-mode control method. This type of control enables the driver to adjust the LED current in response to changes in the voltage output of the LED string. The driver features an integrated feedback loop which allows it to measure the LED output voltage and adjust the current output accordingly. This ensures that the LED string receives a constant current output regardless of any variations in the input voltage or operating temperature.The LT8391IFE#TRPBF is suitable for a variety of applications such as LED lighting systems, LCD backlighting, and other lighting systems. It is also well-suited for automotive and OEM applications, providing a cost-effective solution for driving LED strings. The driver is highly reliable and provides a robust solution for driving and controlling high-current LED strings.In conclusion, the LT8391IFE#TRPBF is a versatile, cost-effective, and highly reliable LED driver from Linear Technology, which is suitable for a variety of applications. Its low output noise levels and integrated temperature monitoring features make it an ideal solution for driving high-current LED strings. Furthermore, its current-mode control mechanism enables it to adjust the output current in response to changes in the LED output voltage, ensuring a constant current output is maintained regardless of any changes in the input voltage or operating temperature.

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