PCU9955TW,118

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PCU9955TW,118 Application Field and Working Principle

PMIC - LED Drivers utilizes the PCU9955TW-118 power management integrated circuit (PMIC) to manage and improve the reliability of LED digital lighting systems. This PMIC functions as an efficient energy saving and system power management tool. It is used to provide superior performance in automotive and industrial applications. Features included a wide voltage range, current sharing, programmable timing, over-current protection, programmable turn-on time delay, low start up time, and programmable soft-start events.

The PCU9955TW-118 PMIC features a wide input voltage range of 2.7V – 21V. This input voltage range is suitable for automotive, industrial and entertainment applications, allowing for flexibility and improved system reliability. With its low quiescent current of 5.25mA, the PCU9955TW-118 is capable of delivering up to 8W of power, further increasing the flexibility of LED usage in applications.

The PCU9955TW-118 has integrated current sensing and provides adjustable current sharing between two outputs. It also provides over-current protection with programmable timer to limit energy dissipation. This feature enables the user to choose how the system will respond in the event of a short circuiting. The user can preset the timer value, so that the system quickly responds to short-circuit and shuts down before permanent damage. This further increases the reliability of system.

The PCU9955TW-118 includes a programmable turn-on time delay that allows the user to automatically adjust the turn-on times of different LEDs. This feature helps the user to control and optimize the overall system power consumption, resulting in improved system efficiency. The user can also program soft-start events using the built-in soft-start feature that helps to reduce the inrush current and minimize the stress on components.

In addition, the PCU9955TW-118 provides an adjustable output that can be adjusted for load current balance and load voltage stabilization. This is useful for applications where LEDs must be driven with a specific amount of current or with a specific voltage. The output voltage can be adjusted through a voltage range of 6V – 16V, allowing for a more efficient performance.

In conclusion, the PCU9955TW-118 is an effective and efficient PMIC that is capable of managing and improving the performance of LED digital lighting systems. Its wide input voltage range, over-current protection, programmable timer and adjustable current sharing further increase the reliability and usability of the system. The programmable turn-on time delay and soft-start functionality help to reduce power consumption and increase system efficiencies. Finally, the adjustable output voltage allows for flexible load management and improved load voltage stabilization.

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