TPS92622-Q1

The TPS92622-Q1 is a high-efficiency, constant-current LED driver designed for automotive and industrial applications. It operates over an input voltage range of 4.5 V to 36 V, making it suitable for both low-voltage and high-voltage systems such as those found in modern vehicles. The device features a wide output current range from 10 mA to 1 A, enabling flexible design for various LED configurations including single or multiple LEDs in series. This IC integrates a high-side N-channel MOSFET switch with a built-in current sense resistor, which simplifies the external circuitry while maintaining precise current regulation. It supports PWM dimming up to 100 kHz, allowing smooth brightness control without visible flicker—a critical requirement in automotive lighting where visual comfort and safety are paramount. Additionally, the TPS92622-Q1 includes thermal shutdown protection and overcurrent protection to ensure reliable operation under fault conditions. Designed for robustness in harsh environments, the TPS92622-Q1 meets AEC-Q100 Grade 1 qualification standards, ensuring long-term reliability in automotive applications such as interior lighting, exterior lighting (headlights, taillights), and daytime running lights. Its low quiescent current (typically 80 µA) contributes to energy efficiency, especially important in battery-powered or always-on systems. The device also offers configurable fault detection via a dedicated fault pin that can signal open-load, short-circuit, or thermal events to the system controller. This feature enhances system-level diagnostics and improves overall safety. Furthermore, the TPS92622-Q1 supports both analog and digital (PWM) control inputs, providing designers with flexibility in integrating the driver into existing control architectures. With a compact package option (SON-8), the TPS92622-Q1 minimizes PCB footprint while delivering high performance in space-constrained designs. Its ability to operate reliably across a broad temperature range—from -40°C to +125°C—makes it ideal for use in engine compartments, under-hood modules, and other demanding environments typical in automotive electronics.