LT3756IMSE-2#TRPBF

Voltage - Output:	100V
Base Part Number:	LT3756
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 ~ 125°C (TJ)
Applications:	--
Dimming:	Analog, PWM
Frequency:	100kHz ~ 1MHz
Current - Output / Channel:	--
Series:	--
Voltage - Supply (Max):	100V
Voltage - Supply (Min):	6V
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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The LT3756IMSE-2#TRPBF is a high-efficiencyswitching regulator power management IC (PMIC) specifically designed for driving high power LEDs. It is part of a family of LED Drivers, alsoknown as LED Lighting Controllers. The LT3756IMSE-2#TRPBF offers excellentefficiency, a wide input voltage range and a regulated constant current sourceoutput that allows it to drive high power LEDs up to 5A output current with up to97% efficiency.The LT3756IMSE-2#TRPBF LED Driver is ideal for LED lighting applications such as commercial, industrial and residential lighting, architectural and decorative lighting, street lighting, street sign illumination, area lighting, downlights, tunnel lighting, and automotive (Instrument and interior lighting). Its wide 3V-47V input voltage range ensures compatibility with awide range of input sources, including DC mains or battery supply.The LT3756IMSE-2#TRPBF features protection functions, including Over-Voltage protection, Over-Current protection, Short circuit protection and Thermalshutdown protection, to increase the reliability of the system design. The devicealso includes a dimming feature which allows the output current to be reducedaccording to an external dimming signal, making it suitable for applications wherechanging lighting levels are required.

Working Principle

The LT3756IMSE-2#TRPBF is a step-down switching regulator, also known as abuck-converter. It works on the principle of switching the load between two powersources, thus achieving the desired output current. The output of the LT3756IMSE-2#TRPBF is a regulated constant current sink thatgenerates a stable output current.When the LT3756IMSE-2#TRPBF is active, the ON-time of the switch is determinedby an adaptive modulation scheme, allowing the device to adjust the switchingfrequency to maintain constant peak current regulated by an external sensingresistor. During the ON-time, power is fed to the load through the switch.During the OFF-time, the LT3756IMSE-2#TRPBF has an ultra-low quiescent current ofonly 9μA when in shutdown mode, making it ideal for applications requiringlow power. The LT3756IMSE-2#TRPBF also features an integrated Wide Input Voltage ( 7V - 40V) Under Voltage Lockout (UVLO) which prevents the LED Driverfrom starting up unless the input voltage is within its operational range.

Conclusion

The LT3756IMSE-2#TRPBF is an efficient and reliable LED Driver that can deliverup to 5A output current with up to 97% efficiency. Its wide 3V-47V input voltage range and integrated protection features make it ideal for a range of LEDlighting applications, from commercial and industrial to automotive applications.Its ultra-low standby current and dimming features further add to itsversatility. With its robust design and excellent efficiency, the LT3756IMSE-2#TRPBF is the perfect choice for high-power LED lighting solutions.

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