TPS92513DGQT

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The TPS92513DGQT is a driver IC from Texas Instruments that specifically supports high-power devices such as light-emitting diodes (LEDs) and laser diodes. This device is categorized as a power management integrated circuit (PMIC), specifically a LED driver, and has been designed to meet stringent power and reliability requirements. The TPS92513DGQT features an integrated DC/DC boost converter, an output voltage feedback path to accurately regulate the LED output current, an integrated start-up circuit, a low-side current sense, an enable overcurrent threshold, an extended power supply range adjustment, and internal current limiting. This guide offers a comprehensive overview of the TPS92513DGQT application field and working principle.

Application Field

The TPS92513DGQT can be used for a variety of applications, both general and specialty lighting systems. It is ideally suited for applications such as solid-state lighting, automotive headlights and brake-lights, pool lighting, street lighting, sign and channel letters, flood lights, garden lights, and LCD backlighting. The TPS92513DGQT is a single-chip solution that provides an integrated and efficient drive solution, reducing design complexity and saving space.

Working Principle

The TPS92513DGQT is built around a high-efficiency DC/DC boost converter and an integrated output voltage feedback path for accurate LED constant current regulation. The LED current is programmed through the LED current setting register and controlled with a sense resistor at the output. As a result, the current drawn by the LEDs is independently set for each output. The device also includes an integrated start-up circuit, low-side current sense, enable overcurrent threshold, extended power supply range adjustment, and internal current limiting. The TPS92513DGQT is equipped with built-in advanced protection features such as overvoltage protection, overcurrent protection, and over temperature protection.

The TPS92513DGQT offers two operating modes: a constant voltage (CV) mode and a constant current (CC) mode. In CV mode, the output voltage is regulated to a user-defined voltage, while in CC mode, the output current is regulated to a user-defined current. The operating mode can be selected via a pin. The start-up circuit ensures that the device starts up in the selected mode, saving the user the time to adjust the settings every time the board is powered up. The device also includes an adjustable output voltage range and an adjustable output current range for flexibility. In addition, the device is available in a green 6-lead, 2×2 mm, lead-free and halogen-free package for space efficiency.

To sum up, the TPS92513DGQT from Texas Instruments is a power management integrated circuit (PMIC) specifically tailored for LED drivers. Its main features include a built-in DC/DC boost converter, an output voltage feedback path for accurate LED constant current regulation, an integrated start-up circuit, low-side current sense, enable overcurrent threshold, extended power supply range adjustment, and internal current limiting. It can be used in a wide range of applications, and offers two operating modes, CV and CC. It is a single-chip solution that reduces design complexity and saves space.

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