BU8770AFV-E2

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PMIC, or Power Management Integrated Circuits, has become an indispensable component in modern electrical and electronics technology, providing efficient and reliable power handling for countless devices. LED drivers, as a type of PMIC, are also increasingly popular for their unique features and capabilities. The BU8770AFV-E2 is a particular type of LED driver from ROHM Semiconductor, which offers an array of applications and features for various digital and analog displays. This article will discuss the BU8770AFV-E2’s application field and working principle.

BU8770AFV-E2 is a six-channel LED driver, suitable for both medium and large-size display applications such as automotive and industrial displays. It is a true 6-channel constant current driver with a voltage-droop system that reduces power consumption in dimmed mode while maintaining the same display brightness. This LED driver provides over current protection, over temperature protection, LED short-circuit protection, etc., which make it safe and reliable to use. In addition, it also offers a wide operating temperature range of -40C to +85C and can maintain very low levels of noise and ripple. Thus, BU8770AFV-E2 is an optimal choice for many applications.

When it comes to the working principle, the BU8770AFV-E2 is a constant-voltage LED driver with an external current mirror. Basically, it works by using an external analog voltage source to supply the required current for each channel of the LED driver. This current is regulated by a voltage-controlled resistor network which enables the user to adjust the brightness of the LEDs without sacrificing efficiency. The BU8770AFV-E2 also features a built-in thermal protection circuit which automatically shuts down the LEDs when the temperature exceeds a certain point, thus ensuring the safety of the user and the system.

In short, the BU8770AFV-E2 is an ideal LED driver for many applications due to its reliable performance, wide operating temperature range, and high efficiency. Its external current mirror and voltage-controlled resistor network make it a very efficient LED driver and its built-in thermal protection circuit makes it particularly safe and reliable. As a result, this LED driver is rapidly becoming the preferred choice of many consumers and businesses alike.

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