TPS92515HVQDGQRQ1

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Introduction

TPS92515HVQDGQRQ1 is a PMIC (power management integrated circuit) device specifically designed for driving LEDs with high-quality light output. The device supports various output current levels suitable for various lighting applications, such as RGB lightings, industrial and commercial lightings, emergency lightings, and automotive lightings. It provides various levels of brightness control and offers a wide range of operating voltages. Its integrated circuits provide an efficient, cost-effective solution for driving high-power LEDs.

Application Field

The TPS92515HVQDGQRQ1 can be used in a variety of high-power LED driver applications, such as RGB lightings, industrial and commercial lightings, emergency lightings, and automotive lightings. The device can be used to drive high-power LEDs, such as Cree XLamp XP-L and XP-G, Nichia NVCM, Osram Ostar, and Samsung LM772. These LEDs require a high-current drive solution, and the TPS92515HVQDGQRQ1 is designed to provide a cost-effective solution for these applications. Moreover, the device is designed to be compatible with various lighting control systems, such as DALI and DMX, as well as I2C and SPI.

Working Principle

The TPS92515HVQDGQRQ1 uses the current-mode control approach for driving LEDs. This method has the advantages of low component count, fewer external components, high switching frequency, wide-dynamic range, low switching losses and good light output quality. Current-mode control operates by controlling the LED current with an analog feedback loop. A current sense amplifier with a precise reference current is used to measure the LED current and control the LED current accordingly. The power switch is driven by an error amplifier, which compares the LED current with the reference current. Thus, the LED can be driven at a constant current regardless of supply voltage or the temperature of the environment.

Output Power Regulation

The TPS92515HVQDGQRQ1 can provide adjustable output current levels ranging from 0.5A to 10A. The output characteristics of the device can also be controlled by a wide range of voltages. In addition, the device provides integrated PWM dimming control for brightness control and allows for smooth light dimming from 0% to 100%.

Safety Features

The TPS92515HVQDGQRQ1 also provides several safety features to ensure proper operation and reliable protection of the LED load. It offers an input overvoltage protection feature that prevents the LED current from exceeding the set current level. In addition, the device includes an inrush current limit feature that reduces the inrush current during LED turn-on by limiting the LED current for a specified amount. Moreover, the device offers thermal shutdown protection to protect the LED from excessive heat and current.

Conclusion

The TPS92515HVQDGQRQ1 PMIC device is designed to provide an efficient, cost-effective solution for driving high-power LEDs. It is suitable for high-power LED driver applications, such as RGB lightings, industrial and commercial lightings, emergency lightings, and automotive lightings. It provides adjustable output current levels ranging from 0.5A to 10A and features multiple safety features to ensure reliable protection of the LED load.

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