BU90LV047A-E2

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BU90LV047A-E2 (BU90LV047A for short) is an integrated circuit manufactured by Toshiba Corporation, and it is mainly applied as a driver in various types of interface applications. The BU90LV047A has a 8-channel serial-to-parallel converter, making it a great enabling solution for electrical interface applications that require larger current capacities.

The BU90LV047A is mainly used in those applications that require driving larger currents than the lower-power serial-to-parallel solutions. At its core, the BU90LV047A is an integrated circuit comprising 8 half-bridges, which are the basic building blocks for an array of applications including LED display drivers, high-side power switches, and current buffers. Each half-bridge is equipped with built-in circuitry that provides overcurrent protection, zero cross-over protection (to prevent the power supply from being subjected to unnecessary shut-downs), and thermal shutdown protection.

The BU90LV047A also has a built-in 3-state serial data input that is used to control the half-bridges. The data input is configured to retain its last valid state after a reset or power cycle, providing a steady state that enables the device to remain functioning even through power interruptions or brown-outs. This feature is especially important in stable signal applications, such as those used in displays, where a steady signal is integral for optimum performance.

In addition, the BU90LV047A is equipped with an LS input signal that can be used to drive LEDs, LCDs and other interfacing applications. By controlling the LS signal with dedicated input pins, the BU90LV047A can be used to drive low-side LEDs directly, enabling the construction of larger and more complex displays. This feature is especially useful in those applications where it is necessary to switch multiple devices simultaneously.

The BU90LV047A also contains two temperature management features. The temperature derating function adjusts the maximum current output to optimize the device’s duty cycle within a given temperature range, while the thermal warning feature monitors the temperature of the device and alerts the user should it exceed the designed thermal parameters. This is helpful in applications where heat dissipation is a potential concern, particularly in larger displays.

In summary, the BU90LV047A is a highly effective serial-to-parallel converter that can be used in a wide variety of electrical interface applications. Its combination of current capacity, 8-channel design, temperature management, and 3-state serial data inputs make it a great choice for those applications that require more from their converters.

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