LDU5660S1000-WD

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LDU5660S1000-WD is an LED driver and therefore an important component of LED lighting systems.The device consists of a full-bridge driver and a buck switching regulator controller, creating a two-stage LED driver solution. The full-bridge design utilizes synchronous rectification, offering a high level of efficiency. The bright side of LDU5660S1000-WD is that it provides excellent performance and reliability with very low emissions and low EMI levels.

The application field of the LDU5660S1000-WD is broad. It can be used in various indoor LED lighting fixtures, such as LED bulb, down lights, ceiling fans, decorative lights, track lights and street lights. It is suitable for driving the high power LEDs across the world with wide input voltage range, which means the user can get the convenience of using it with AC grid voltages ranging from 85V to 265V. It uses a PWM dimming technique, allowing the user to adjust the light intensity based on their personal preferences. The device also has over-temperature protection, soft-starting circuit, short-circuit protection, over-current protection and open-circuit protection.

The working principle of the LDU5660S1000-WD is based on buck switching regulator. It is based on the fact that when the power transistor switches ON, a large current is supplied from the input and stored in the inductor. When the power transistor switches OFF, the stored energy is released from the inductor and is supplied to the output. This energy is limited by the potentiometer, allowing the user to adjust the intensity of the LED. The power regulating part works like a switch, which is continuously ON or OFF to provide the desired voltage and current levels at the input and output.

The full-bridge design of the LDU5660S1000-WD uses two MOSFETs instead of BJTs and performs synchronous rectification according to the voltage taking place in the MOSFETs for minimized power dissipation and improved efficiency. Furthermore, direct connection of a buck switch regulator controller across both the input and output, enables simple, compact and reliable circuit design, while at the same time reducing the number of external components that need to be added. The feedback loop employed by LDU5660S1000-WD helps to keep the output voltage stable.

The LDU5660S1000-WD is a highly efficient, reliable and cost-effective LED driver. It can be used to drive various types of LEDs in both indoor and outdoor lighting fixtures. Its wide range of features, such as over-temperature protection, soft-start circuit, short-circuit protection, over-current protection and open-circuit protection, make it an ideal choice for any LED lighting application. The two-stage design, based on buck switching regulator and the full-bridge driver, ensures excellent performance and reliability with very low emissions and EMI levels.

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