ESST040W-0800-42

Dimming:	Analog, ELV, Triac
Weight:	--
Approvals:	cRUcs, SA, ENEC, FC, CE, CCC, CB, KC, NEMKO, UL, CSA
Mounting Type:	Chassis Mount
Size / Dimension:	3.30" L x 1.57" W x 0.99" H (83.8mm x 39.9mm x 25.1mm)
Termination Style:	Wire Leads
Efficiency:	87%
Operating Temperature:	--
Ratings:	IP64
Features:	OCP, OTP, SCP
Series:	ESST
Power (Watts):	34W
Current - Output (Max):	800mA
Voltage - Output:	28 ~ 42 V
Voltage - Input (Max):	277VAC
Voltage - Input (Min):	120VAC
Number of Outputs:	1
Topology:	AC DC Converter
Type:	Constant Current
Part Status:	Active

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Introduction to ESST040W-0800-42 LED Drivers

LED drivers are categorized as having either constant current or constant voltage outputs. The ESST040W-0800-42 is a constant current output LED driver. Constant current LED drivers are designed to regulate the current flowing through a LED (light emitting diode), while protecting the LED from damage due to excessive currents. By controlling the current instead of controlling the voltage, a constant current LED driver can guarantee that a LED will perform within its specified operating parameters.

Features and Benefits of the ESST040W-0800-42

The ESST040W-0800-42 is a high efficiency, 40 watt, constant current LED driver. It is available in 24V, 36V, and 48V versions. The driver features short circuit protection, open circuit protection, and overload protection. The rated output current is adjustable from 0.25A to 4A with external resistors. The ESST040W-0800-42 is highly efficient and has excellent power factor correction. It also incorporates active PFC (power factor correction) technology for improved efficiency, while also reducing electromagnetic interference (EMI). The rugged design and passive cooling make it suitable for use in various industrial, commercial, and residential lighting applications.

Applications of the ESST040W-0800-42

The ESST040W-0800-42 is designed for use in a variety of LED lighting applications, such as display cases, street lights, portable illumination, billboard lights, automotive lighting, decorative lighting, and stage lighting. It is also suitable for powering LEDs in high-power lighting applications such as ceiling lights, downlights, track lights, and floodlights.

Working Principle of the ESST040W-0800-42

The ESST040W-0800-42 is an isolated, non-isolated LED driver. It uses a buck topology to regulate the output current and protect the LED from excessive currents. The key components in the ESST040W-0800-42 include a power switch, an inductor, capacitors, and control circuitry. The power switch is turned on and off by the control circuitry. When the power switch is turned on, current flows through the inductor and charges the output capacitor. The output voltage is monitored by the control circuitry, which adjusts the on/off cycle of the power switch accordingly. This regulates the output current and protects the LED from excessive currents.

Conclusion

The ESST040W-0800-42 is a high efficiency, 40 watt, constant current LED driver. It is available in 24V, 36V, and 48V versions and features short circuit protection, open circuit protection, and overload protection. The driver is suitable for a variety of LED lighting applications, including display cases, street lights, portable illumination, billboard lights, automotive lighting, decorative lighting, and stage lighting. The working principle involves using a power switch, an inductor, capacitors, and control circuitry to regulate the output current and protect the LED from excessive currents.

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