LM3492HCEVM Development Boards, Kits, Programmers

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	150mA
Moisture Sensitivity Level (MSL):	--
Outputs and Type:	2, Non-Isolated
Voltage - Output:	38V
Features:	Thermal Shutdown Protection
Voltage - Input:	9 V ~ 16 V
Supplied Contents:	Board(s)
Utilized IC / Part:	LM3492HC

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LM3492HCEVM is a Evaluation Board for LED Drivers. It is a high current, constant frequency primary side led driver integrated circuit(IC). It provides a high performance power solution, enabling various lighting applications to meet all requirements from the actual operating conditions. The LM3492HCEVM is able to provide up to 300 W of continuous power with precision frequency and dimming accuracy. The LM3492HCEVM has a wide array of features, including integrated input line protection and output overvoltage protection. The LM3492HCEVM also offers temperature sensing, temperature mapping, and an on-board 1.8V power supply, so that the LED driver circuit can be optimized for any specific LED load.

Working Principle of LM3492HCEVM

The LM3492HCEVM utilizes a constant frequency current mode architecture, meaning that the circuit functions independent of switching frequency and load current. The constant frequency current mode is also known as a “triangle wave architecture” as it generates a triangle wave signal in order to control the power it outputs. This technology helps to reduce EMI noise and to increase efficiency by providing lower losses during switching transients. The IC uses an on-chip voltage regulation to ensure an output voltage that is always within the specified range and is therefore immune to line and load variations.The current feedback control system of LM3492HCEVM is used to monitor and adjust the current in each of the output phases. The output current is adjusted in proportion to changes in the input power. This mechanism allows the circuit to maintain a constant output power despite changing conditions. The voltage regulation system is used to maintain output voltages within a specified range, allowing the LM3492HCEVM to be used in a wide variety of lighting applications.

Application Fields of LM3492HCEVM

The LM3492HCEVM is suitable for use in a wide variety of lighting applications, such as general ambient lighting for office, home, and hospitality environments, indoor and outdoor architectural lighting, retail and showroom lighting, stage and theater lighting, and emergency lighting. It can also be used for other non-lighting applications such as energy storage.The LM3492HCEVM features temperature sensing with temperature mapping capabilities. This enables it to determine the optimal operating temperature of an LED load and then adjust the output voltage to provide the best performance. The LM3492HCEVM also has an internal low-voltage supply, allowing it to operate in extreme temperatures between 0 to 100°C.In conclusion, the LM3492HCEVM Evaluation Board is an ideal choice for LED drivers, enabling high-performance lighting solutions in a wide range of applications. The constant frequency current mode architecture and voltage regulation system ensure excellent performance and reliability, as well as helping to reduce EMI noise and increase efficiency. The included temperature sensors and temperature mapping capabilities make the LM3492HCEVM a versatile and reliable LED driver solution.

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