LT3763IFE#TRPBF

Voltage - Output:	55V
Base Part Number:	LT3763
Supplier Device Package:	28-TSSOP-EP
Package / Case:	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	--
Dimming:	PWM
Frequency:	200kHz ~ 1MHz
Current - Output / Channel:	--
Series:	--
Voltage - Supply (Max):	60V
Voltage - Supply (Min):	6V
Number of Outputs:	1
Internal Switch(s):	No
Topology:	Step-Down (Buck)
Type:	DC DC Controller
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT3763IFE#TRPBF Application Field and Working Principle

LED lighting has become increasingly popular in many areas due to its efficiency and long life. High-power LEDs require a constant current driver while lower-power LEDs require a constant current or constant voltage driver. Constant current drivers have the advantage of providing accurate light output.The LT3763IFE#TRPBF is a constant current LED driver controller from Linear Technology, which provides precise current regulation along with high-efficiency and wide input voltage range. This device is ideally suited for applications such as LED lighting, interior lighting, industrial lighting, decorative lighting, and automotive lighting.

Features of LT3763IFE#TRPBF

The LT3763IFE#TRPBF features an internal 555 timer which allows for direct dimming with PWM signals. Also, the device has a wide input voltage range of 4V to 40V and supports up to 1A of LED current. The LT3763IFE#TRPBF offers adjustable current setting and has an adjustable switching frequency of 200kHz to 2MHz. This device also offers overvoltage protection, undervoltage lockout, and thermal management.

Structure of LT3763IFE#TRPBF

The LT3763IFE#TRPBF is an 8-pin device in an MSOP package. This device consists of two main parts: a voltage regulator and a current regulator. The voltage regulator is responsible for controlling the input and output voltages. The current regulator takes the output of the voltage regulator and converts it into a constant current.The current regulator is the main part of the LT3763IFE#TRPBF. It consists of three stages: a voltage follower, a constant current, and a current controlled amplifier. The voltage follower stage takes the output of the voltage regulator and provides a buffered signal for the constant current stage. The constant current stage takes the output of the voltage follower and produces a constant current. This causes the LED to have a regulated illumination level. The current controlled amplifier takes the output of the constant current stage and amplifies the signal to drive the LEDs.

Working Principle of LT3763IFE#TRPBF

The LT3763IFE#TRPBF works by detecting the voltage across the LED and adjusting the current through it in order to maintain a constant illumination level. This is done by the current regulator within the device. The voltage follower stage takes the output of the voltage regulator and buffers it for use by the constant current stage.The constant current stage takes the output of the voltage follower and regulates the LED current. The current controlled amplifier takes the output of the constant current stage and amplifies the signal, which then drives the LED.The LT3763IFE#TRPBF also provides overvoltage and undervoltage lockout as well as thermal protection. These safety features help protect the device and LEDs from damage.

Applications of LT3763IFE#TRPBF

The LT3763IFE#TRPBF is ideally suited for a variety of LED applications such as automotive lighting, interior lighting, decorative lighting, and industrial lighting. This device offers tight current regulation, wide input voltage range, and adjustable frequency.The LT3763IFE#TRPBF is also used in other areas such as solar, battery-powered, and eco-friendly devices. With its low power consumption and efficient design, it is an excellent choice for many applications requiring a constant current LED driver.

Conclusion

The LT3763IFE#TRPBF is a PMIC-LED driver from Linear Technology which is ideally suited for LED lighting applications. It features an adjustable current setting, a wide input voltage range of 4V to 40V, adjustable switching frequency of 200kHz to 2MHz, and overvoltage protection.This device offers precise current regulation and high-efficiency while also providing safety features such as undervoltage lockout and thermal protection. It is an excellent choice for a variety of applications requiring a constant current LED driver.

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