sales@hkmjd.com
Service Telephone:86-755-83294757
Trade Name:LED Driver
Brand:ADI
Particular Year:25+
Package:MSOP16
Delivery Date:New and Original
Stock: 20000pcs
The LT3755EMSE-2 are DC/DC controllers designed to act as a constant current source for driving high current LEDs. They drive a low-side external N-channel power MOSFET from an internally regulated 7.15 V. The fixed-frequency, current-mode architecture provides stable operation over a wide range of supply and output voltages. A ground-referenced voltage FB pin serves as an input for multiple LED protection function circuits and also allows the converter to act as a constant voltage source. A frequency adjustment pin allows the user to set the frequency over the 100kHz to 1MHz range, designed to optimise efficiency, performance or external component size.
The LT3755EMSE-2 detects output current on the high side of the LED string. High-end current sensing is a flexible solution for driving LEDs, allowing for boost, buck mode, or buck-boost mode configurations.The PWM input provides LED dimming ratios up to 3000:1, while the CTRL input provides additional analogue dimming capability.
Features-LT3755EMSE-2
3000:1 True Colour PWM™ Dimming
Wide input voltage range: 4.5V to 40V
Output voltage up to 75V
Constant current and constant voltage regulation
100mV high end current sense
Drive LEDs in boost, buck mode, buck-boost mode, SEPIC or flyback topology
Adjustable frequency: 100kHz to 1MHz
Open LED protection
Programmable undervoltage blocking with hysteresis
Improved open LED status pin (LT3755-2)
Frequency synchronisation (LT3755-1)
PWM disconnect switching driver
CTRL pin provides analogue dimming
Low shutdown current: <1µA
Thermally enhanced 16-pin QFN (3mm × 3mm) and MSOP packages
Certified to AEC-Q100 for automotive applications
Applications-LT3755EMSE-2
High power LEDs
Battery chargers
Accurate current-limited voltage regulators
Model
Brand
Package
Quantity
Describe
ADI
QFN-28
3000
High-current, synchronous step-down LED driver with three-state control function
ADI
QFN-28
3000
LED driver IC 1 output DC DC controller SEPIC, step-down, step-up analog, PWM dimming 28QFN
Maxim
24-TQFN
2500
I2C-Controlled 4-Channel Low-Voltage 120mA LED Backlight Driver with Integrated Boost Converter
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