PLDA40-840-277PE

Voltage - Isolation:	3.75kV
Weight:	0.772 lb (350.17g)
Approvals:	CE, cURus, PSE, TUV
Mounting Type:	Chassis Mount
Size / Dimension:	6.61" L x 1.58" W x 0.99" H (168.0mm x 40.0mm x 25.2mm)
Termination Style:	Wire Leads
Efficiency:	88%
Operating Temperature:	-40°C ~ 70°C
Ratings:	IP64
Features:	OTP, OVP, SCP
Dimming:	Analog, PWM
Series:	PLDA40
Power (Watts):	40W
Current - Output (Max):	840mA
Voltage - Output:	9 ~ 48 V
Voltage - Input (Max):	305VAC
Voltage - Input (Min):	90VAC
Number of Outputs:	1
Topology:	AC DC Converter
Type:	Constant Current
Part Status:	Obsolete

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LED Drivers: PLDA40-840-277PE application field and working principleLED is a relatively new but highly efficient and energy saving light source, which has been applied in many areas. LED Drivers are the devices needed to maintain the LED at its optimal performance. PLDA40-840-277PE is an LED driver developed by a Japanese company called PALC. This article aims to analyze the application field and working principle of PLDA40-840-277PE, and further discuss the features and performance of the LED driver. Application Field of PLDA40-840-277PEThe PLDA40-840-277PE LED driver has a wide range of applications. It is especially suitable for signboards, letters, and other signage applications, where color and uniformity are required. It is also widely used in the lighting industry for decorative or functional lighting solutions. The driver is suitable for both indoor and outdoor applications, providing reliable and efficient operation in all types of environments. Another application field of PLDA40-840-277PE is in lighting fixtures, such as wall washers and emergency lighting. This driver is capable of providing efficient and reliable lighting in areas that need to be illuminated for long periods of time without needing to frequently replace the bulb. Additionally, this driver can also be used in street signs and other areas where uniformity and color accuracy are important. Working Principle of PLDA40-840-277PE The working principle of PLDA40-840-277PE is based on constant current output LED driver technology. This driver adjusts the output current to ensure uniform light from the LEDs and to prolong the lifetime of the LEDs. By controlling the amount of current applied to the LED, it is possible to achieve a desired light output.The PLDA40-840-277PE LED driver consists of a transformer, a rectifier, a capacitor, and a control circuit. The transformer steps down the line voltage to a safe level for the LEDs. It then rectifies the AC voltage to DC voltage, which is used to charge the capacitor. The capacitor acts as a voltage regulator, storing and supplying the correct level of voltage to the LED. The control circuit on the LED driver is responsible for adjusting the output current to maintain the desired level of illumination. Features and Performance The LED driver has a wide range of features and performance. It is waterproof (IPX3) and dustproof (IP5X). It is equipped with short circuit protection, which prevents damage to the driver and LED from excessive current. The driver has a wide input voltage range (90V to 277V AC). It is also equipped with a surge voltage form surge protector (SVF) for more reliable operation.The LED driver is highly efficient, with an efficiency of up to 83%. This means that a higher percentage of the energy consumed is converted into lighting. It also has a low power factor (PF) of 0.8, which helps to reduce power losses. Additionally, the driver has a wide range of dimming capabilities, allowing precise control over the level of illumination.

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