LM3552SDX

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Texas Instruments’ LM3552SDX is a member of the company’s Power Management Integrated Circuit (PMIC) product family designed to provide optimized power sequencing and sequencing control for high voltage LED applications. Offering a wide range of features, this device is versatile enough to support plastic and ceramic type packages, allowing customers to choose the best packaging solution for their given application. This document will discuss the various application fields and working principles of the LM3552SDX PMIC.

Applications of the LM3552SDX include applications such as automotive headlight controllers, medical monitors, automotive displays, and street lighting. The device offers a wide voltage range, enabling it to support applications with a wide range of existing and emerging power types, such as automotive and three-phase rectifier. Additionally, the device provides protection against electric surges and current overloads. Furthermore, it is capable of providing rapid control response to transient signals, making it suitable for dynamic applications.

LED Driver Application: The LM3552SDX is designed for use in high-voltage LED applications such as automotive headlight controllers, back-lighting for medical monitors and automotive displays, and street lighting. It features three channels that can deliver up to 6 amps of current for connecting up to six LEDs. The device also provides a number of protections such as over-voltage, over-temperature and over-current. This makes it suitable for a wide range of LED applications.

Sequencing Control: The LM3552SDX supports sequencing and sequencing control, allowing users to easily customize timing, power levels and sequences. The device supports four sequences per channel, allowing up to 12 sequences to be programmed using a simple configuration interface. The device offers a variety of features and controls such as programmable delays between sequences, current rise and fall times, over-current protection and more. This ensures maximum flexibility and accurate control and sequencing for the LED application.

Compatibility: The LM3552SDX is compatible with a wide variety of existing and emerging power types, such as three-phase rectifier, automotive and others. It is also compatible with various types of packaging, including ceramic, plastic and wire to board. This allows customers to choose the best packaging solution for their given application.

Protection: The LM3552SDX provides protection against over-voltage, over-current, overload, under-voltage and over-temperature. This makes it suitable for use in applications where safety is a concern. It also provides for a low current draw in static mode, ensuring lower power consumption.

Rapid Control: The LM3552SDX offers rapid control response to transient signals, making it suitable for dynamic applications. The device features advanced power management features such as Advanced Voltage Transition and Smart Soft Start for maximum control. This ensures accurate and fast control for transient applications.

In summary, the LM3552SDX is a member of TI’s PMIC family designed to provide optimized power sequencing and sequencing control for high voltage LED applications. Its features make it suitable for a wide range of LED applications and offer protection against over-voltage, over-temperature, over-current and other issues. The integrated sequencing and sequencing controls, compatibility with existing and emerging power sources, and rapid control response make the LM3552SDX an ideal solution for LED applications.

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