LT3761HMSE#TRPBF

Voltage - Output:	--
Base Part Number:	LT3761
Supplier Device Package:	16-MSOP-EP
Package / Case:	16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TA)
Applications:	--
Dimming:	Analog, PWM
Frequency:	100kHz ~ 1MHz
Current - Output / Channel:	--
Series:	True Color PWM™
Voltage - Supply (Max):	60V
Voltage - Supply (Min):	4.5V
Number of Outputs:	1
Internal Switch(s):	No
Topology:	Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Controller
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT3761HMSE#TRPBF Application Field and Working Principle

Introduction to LED Driver

Light-emitting diodes (LEDs) have become increasingly popular in recent years due to the widespread adoption of efficient lighting solutions. LEDs are small light sources that convert electrical energy into light energy, and these sources can be used for a variety of applications including indoor and outdoor lighting, automotive lighting, emergency lighting, portable light, traffic lights and many more. LEDs have many advantages over traditional lighting sources, such as lower power consumption, higher efficiency and greater portability.In order to maximize performance and efficiency, LEDs require a special type of driver known as a LED driver. A LED driver is an electrical device that delivers current to one or more LEDs, and is necessary to regulate the current and voltage applied to the LEDs. The current flowing through the LED must be controlled and stabilized to ensure that the LED is operating at its peak efficiency, while also reducing power consumption and increasing the longevity of the LED.

LT3761HMSE#TRPBF

The LT3761HMSE#TRPBF is a high-efficiency, high-reliability LED driver from Linear Technology. It is a synchronous step-down converter that provides up to 1.5A of continuous output current, and can operate from input voltages of 4.5-32V and output voltage from 0.6-20V. The LT3761HMSE#TRPBF is designed for applications requiring efficient, high-brightness LED lighting, such as street lighting, stage lighting, emergency lighting and backlighting for LCD displays.The LT3761HMSE#TRPBF is available in three packages, including a thermally enhanced H-grade, thermally enhanced with exposed thermal pad HMS and thermally enhanced with exposed thermal pad, large ball radius and EEP (Enhanced Electrical Performance) grade, which offers improved electrical performance.

Working Principle

The LT3761HMSE#TRPBF is a synchronous step-down DC/DC controller that uses a high-frequency, low-ripple current mode control topology to deliver regulated output current up to 1.5A. Its constant-current output is adjustable over a wide range with the addition of an external sink resistor.The LT3761HMSE#TRPBF is designed to eliminate the burden of component selection and minimize external component count. Its integrated high-side and low-side power MOSFETs minimize the power loss associated with switching and current-limiting components. The integrated PWM dimming is adjustable with a control voltage ranging from 0.4V to 3.4V, and the device offers an internal side-enable pin for remote on/off control of the outputs.To ensure efficiency and maximum output current, the device has built-in over-current and under-voltage protection circuitry. The device also offers thermal regulation to maintain peak efficiency over a wide range of ambient temperatures.

Conclusion

The LT3761HMSE#TRPBF is a high-efficiency, high-reliability LED driver that can provide up to 1.5A of continuous output current and is designed for applications requiring efficient, high-brightness LED lighting. It is a synchronous step-down DC/DC controller that uses a high-frequency, low-ripple current mode control topology, and its integrated high-side and low-side power MOSFETs minimize the power loss associated with switching and current-limiting components. The device has built-in over-current and under-voltage protection circuitry, as well as thermal regulation to maintain peak efficiency over a wide range of ambient temperatures.

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