MC34845BEP

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The MC34845BEP is one of the most advanced LED drivers on the market today. It is a power management integrated circuit (PMIC) designed for high power LED applications. It offers great efficiency, high-power supplies, constant current and adjustable brightness in one chip. The MC34845BEP is also designed to be cost-effective and easy to use. In this article, we will discuss the application field and working principle of the MC34845BEP.

The MC34845BEP is designed to operate in high power LED applications such as general lighting, high bay lighting, and street lighting. It is a multi-channel, constant current LED driver with adjustable current limits, making it perfect for multi-channel retrofit lighting applications. The MC34845BEP supports up to 6 high power LED strings, with a maximum current of 5A at an input voltage range up to 35V. It also features an integrated full power switch with over-temperature protection, making it a reliable and cost-effective solution for large scale LED applications.

In terms of working principle, the MC34845BEP has two different operating modes: program mode and pulse width modulation (PWM) mode. In the program mode, the LED current and PWM duty cycle are programmed through external resistors. The PWM mode allows the LED current and duty cycle to be adjusted by applying a modulated signal to the PWM input pin. The LED brightness can be adjusted via external components or via an onboard potentiometer.

The MC34845BEP also provides protection against over-temperature, over-current, and open-load conditions. In the event of an over-temperature condition, the device will shut down and protect the LED strings. It also has a programmable thermal-overload protection system, which will prevent the current from exceeding a pre-specified limit. In the case of an open-load condition, the MC34845BEP will switch the high power switches into a low-power state, allowing for reduced power dissipation and improved efficiency.

The MC34845BEP is a cutting-edge device, with many features and advantages. It is an efficient and cost-effective solution for high power LED applications, providing adjustable current and brightness, over-temperature protection, and the ability to operate in two different modes. The MC34845BEP is a great choice for powering high power LED lighting in a variety of applications.

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