TPS28225-Q1

The TPS28225-Q1 is a high-performance, automotive-grade dual-channel power switch designed for reliable load control in harsh environments. It features two independent N-channel MOSFETs with integrated current limiting and thermal protection, making it ideal for managing inductive and resistive loads in vehicle systems. Each channel can handle up to 5.5 A continuous current at 30 V, supporting robust operation across a wide supply voltage range from 4.5 V to 36 V. This device includes precise current limit detection via an on-chip sense resistor, allowing accurate overcurrent protection without external components. The internal current limit threshold is programmable through a resistor divider network, enabling flexible system design tailored to specific load requirements. Additionally, the TPS28225-Q1 offers short-circuit protection, thermal shutdown, and safe-mode operation, ensuring long-term reliability under fault conditions. Designed for automotive applications, the TPS28225-Q1 meets AEC-Q100 Grade 1 qualification standards, guaranteeing performance in extreme temperature ranges from –40°C to +125°C. Its low quiescent current (<10 μA) minimizes power consumption during standby, enhancing efficiency in always-on vehicle systems. The device also supports fast turn-on and turn-off times, reducing switching losses and improving response speed for dynamic load management. The TPS28225-Q1 incorporates diagnostic features such as open-load detection, short-circuit indication, and thermal warning outputs, which are accessible via dedicated pins. These diagnostics simplify system-level monitoring and enhance fault isolation capabilities, critical for advanced driver-assistance systems (ADAS), infotainment units, and body control modules. The built-in hysteresis in the current limit circuit prevents oscillation during transient load events, maintaining stable operation even under fluctuating conditions. With a compact 10-pin SOIC package, the TPS28225-Q1 provides a space-efficient solution for high-density PCB layouts. It is compatible with standard CMOS logic levels for easy integration with microcontrollers and digital control circuits. The device’s robust EMI performance and low electromagnetic interference make it suitable for use in sensitive automotive electronics where signal integrity is paramount. Overall, the TPS28225-Q1 delivers a highly integrated, reliable, and efficient power management solution for automotive applications requiring dual-channel load switching with comprehensive protection mechanisms and diagnostic feedback.