LM3448-120VFLBK/NOPB

Series:	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	228mA
Moisture Sensitivity Level (MSL):	--
Outputs and Type:	1, Isolated
Voltage - Output:	27V
Features:	Dimmable
Voltage - Input:	180 ~ 265 VAC
Supplied Contents:	Board(s)
Utilized IC / Part:	LM3448

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LM3448-120VFLBK/NOPB Evaluation Board - LED Driver

The LM3448-120VFLBK/NOPB is an evaluation board that provides current control for driving LEDs with a high level of accuracy. This board is a driver for LED lighting applications and is well suited for driving arrays of LEDs for high-power applications.The LM3448-120VFLBK/NOPB is a true DC-DC buck converter with a wide input voltage range and constant-current control. The board has a wide dimming range of 0-100%, adjustable with a potentiometer or PWM signal while maintaining a constant current. It has thermal and current protection, as well as a power-good signal and over-temperature protection.

Application Field

The LM3448-120VFLBK/NOPB evaluation board is ideal for a variety of LED lighting applications, such as street lighting, architectural lighting, task lighting, accent lighting and digital signage. Because of its high-power capability and current control accuracy, the LM3448-120VFLBK/NOPB is an ideal choice for both indoor and outdoor LED lighting applications.The board is also well suited for LED drivers in industrial and commercial LED light fixtures, including LED tubes, LED downlights and spotlights. With its wide dimming range, the LM3448-120VFLBK/NOPB can be used as a discrete multi-zone or as a single-zone LED driver.

Working Principle

The LM3448-120VFLBK/NOPB evaluation board is based on a true DC-DC buck converter topology. It provides four modes of operation: constant current, constant power, constant voltage and PWM dimming. The board has four control input pins: an enable pin, a dimming pin, a current set pin and a voltage set pin. The enable pin allows for on/off control of the board and the dimming pin can be used for adjusting the LED brightness. The current set pin and voltage set pin can be used to control the output current and voltage respectively. The LM3448-120VFLBK/NOPB evaluation board has a wide input voltage range, from 6-32V, with an output voltage range of 0.45-32V and an output current range of 0-1.2A. It is designed to operate in temperatures ranging from -40 to +85°C, and has a power-good signal, thermal and current protection and over-temperature protection.The LM3448-120VFLBK/NOPB evaluation board supports up to 1.2A of current while effectively controlling the amount of heat generated. In addition, the board has excellent transient response time, providing fast and reliable switching characteristics. With its wide input voltage range, high power capability and accurate current control, the LM3448-120VFLBK/NOPB evaluation board is a perfect choice for LED lighting applications.

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