BP5845W

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The BP5845W is a high-performance LED switching regulator controller. As a PMIC - LED driver category product, it is targeted at high-voltage high-current LED applications. It has features such as high-reliability integrated regulators, high-voltage LED support up to 55V, and current protection in both LED and supply sides. The BP5845W offers the industry\'s best solution for LED driver applications.

The working principle behind the BP5845W is based on a push-pull switching regulator. The BP5845W controller is connected to a pair of power switches, typically an N-channel MOSFETs, and senses the voltage across the LED to generate a precise current for the LED. This simple regulated current control scheme is reliable and provides high efficiency for buck-based LED driver applications. The BP5845W also features comprehensive protection features to provide safe operation in LED and power supply applications.

In LED applications, the BP5845W enables stable, precise LED current control with low-output ripple. The adjustable current allows the BP5845W to achieve a wide range of LED currents up to 30A. Through the built-in current limit protection and short-circuit protection, the BP5845W ensures reliable operation in harsh environments. The BP5845W also features overvoltage protection, reverse voltage protection and thermal protection to provide safe and reliable operation.

In power supply applications, the BP5845W is capable of high-voltage operation up to 55V, enabling the usage of higher voltage power sources in LED driver applications. With its switching frequency up to 200KHz, the device can deliver up to 30A using high-current power stages, typically MOSFETs or IGBTs. This allows for high-efficiency power conversion, minimizing power dissipation in the power stage components.

The BP5845W also features a wide range of design options to suit specific application requirements. The built-in compensation network provides a stable feedback control loop, enabling precise current control with low output ripple. The device also features an adjustable switching frequency up to 200KHz to maximize efficiency or minimize noise and EMI. Furthermore, the enable pin on the BP5845W can be used to turn off the output, allowing for the safe shutdown of an LED driver.

The BP5845W is a highly-integrated and efficient switching regulator controller, ideal for LED driver applications and power supply applications. Its features such as high-voltage and high-current output, overvoltage protection, current limiting, and short-circuit protection, ensure safe and reliable operation. Furthermore, flexible design options provide the user with the ability to customize the device for their specific application requirements.

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