LT3909EMSE#TRPBF

Voltage - Output:	40V
Base Part Number:	LT3909
Supplier Device Package:	12-MSOP-EP
Package / Case:	12-TSSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	Automotive
Dimming:	Analog, PWM
Frequency:	2MHz
Current - Output / Channel:	50mA
Series:	--
Voltage - Supply (Max):	40V
Voltage - Supply (Min):	2.9V
Number of Outputs:	2
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT3909EMSE#TRPBF is an LED driver designed to meet the needs of LED-lighting applications that use multiple LEDs. The LED driver features a wide input voltage range, excellent current accuracy, switching frequency up to 1 MHz, and high-frequency operation down to 200 kHz. It has a small footprint and is compliant with standard lighting industry requirements.LT3909EMSE#TRPBF is classified as a PMIC - LED Drivers. The device is designed to provide a constant current to drive LEDs with a wide input voltage range. It is designed to provide constant current to LEDs over the full range of input voltages, making it ideal for applications that require constant current for reliable operation.The LT3909EMSE#TRPBF includes a switching regulator and control logic to generate a constant current to drive multiple LEDs in series. The regulator\'s feedback control loop produces a stable output current even over a wide input voltage range and operating temperature. The switching frequency can be programmed between 200 kHz and 1 MHz, and the device can operate from either a buck (step-down) or boost (step-up) configuration to drive high- and low-current LEDs respectively.The LT3909EMSE#TRPBF also provides built-in protection against lighting industry-specific over-current, over-temperature, and short-circuit conditions. These features make the device an ideal choice for LED-lighting applications in industries such as automotive, general lighting, and signage.The LED driver\'s control logic is designed to provide a fixed output current over the entire range of input voltages, making it ideal for applications that require a consistent level of illumination. The regulated output current is adjustable through an external resistor, allowing the user to adjust the brightness of the LEDs. Additionally, the switching regulator is designed to reduce ripple and noise in the LED current, resulting in smoother and more consistent lighting.The LT3909EMSE#TRPBF is a highly efficient LED driver, with an operating efficiency of up to 95%. This efficiency also helps reduce heat dissipation, as well as minimize power losses. The device is easy to use, as it does not require additional components such as inductors or external drivers. In conclusion, the LT3909EMSE#TRPBF is an ideal LED driver for applications that require constant current and wide input voltage range. It is compliant with the lighting industry requirements, and provides the user with the flexibility to adjust the brightness of the LEDs. With its excellent efficiency and high-frequency operation, the LT3909EMSE#TRPBF is an ideal solution for a wide range of LED-lighting applications.

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