TPS92510DGQR

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Power management integrated circuits (PMICs) are widely used in automated machines and equipment in various industries due to their comprehensive system control capabilities. In the LED drives field, PMICs are important components that not only provide regulated voltage and current to LED devices, but also help control LED brightness. The TPS92510DGQR is a system PMIC optimized for LED drivers and is designed to operate in an operating temperature range of -40°C to +85°C.

Application Field

The TPS92510DGQR PMIC is highly suitable for compact LED applications, such as home, automotive, and off-grid lighting applications. It features an adjustable current output of up to 20W that allows it to be used in applications from low-power to mid-power LED driver solutions. It is also tailored for directly connecting LEDs to batteries for outdoor and emergency applications. The PMIC is equipped with a 1MHz low-side current-mode synchronous boost converter, 25V/2A-rated LDO, and adjustable soft-start to provide user-friendly controls, as well as other features specific to LED applications such as preheat, dimming, over-temperature-protection, and overvoltage-protection. Additionally, its high-voltage switching/protection capabilities allow it to be used in cost-sensitive applications in markets such as automotive and industrial.

Working Principle

The TPS92510DGQR PMIC incorporates a low-side current regulator, a synchronous buck boost converter, and a low drop-out (LDO) regulator into a single integrated device. The active loop features a current-mode control with 0 to 17A current range, depending on the external inductor, and external components. The internal PWM controller provides a 1MHz clock frequency and offers a wide range of pulse-width modulation (PWM) dimming. It also features regulated voltage, adjustable CC/CV mode, and adjustable soft-start. The internal LDO delivers regulated voltage with selectable output voltage of 3.3V to 5.5V and supply current of up to 2A.

In addition, the device provides multiple protections, such as cycle-by-cycle current limitation, overvoltage protection, overtemperature protection, and undervoltage lockout. The built-in timer of the TPS92510DGQR PMIC allows precise preheat and dimming control, which is widely used in automotive lighting applications. Its low-side current regulator allows for low-swing signal input for dimming interface, by connecting with a transistor, an integrated device, or an inductive load.

Overall, the TPS92510DGQR PMIC is perfect for current-defining LED drivers due to its accuracy and performance. It offers a wide range of current output and its integrated LDO, high-voltage protection, over-temperature protection, and overvoltage protection make it ideal for use in cost-sensitive applications in various markets, such as automotive and industrial.

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