LT3756IMSE-2#PBF

LT3756-2 is DC/DC controller designed to operate as a constant-current source for driving high current LEDs. They drive a low side external N-channel power MOSFET from an internal regulated 7.15V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. A ground referenced voltage FB pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100KHz to 1MHz to optimize efficiency, performance or external component size.

• 3000:1 True Colour PWM™ dimming
• Wide input voltage range: 6V to 100V, output voltage up to 100V
• Constant-current and constant-voltage regulation
• 100mV high side current sense
• Drives LEDs in boost, buck mode, buck-boost mode, SEPIC or flyback topology
• Programmable under voltage lockout with hysteresis
• PWM disconnect switch driver, CTRL pin provides analogue dimming
• Available in 16-lead plastic MSOP package
• Improved open LED status pin

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