Infineon BTS3028SDR: A High-Performance Smart High-Side Power Switch

In the realm of power management and control, efficiency, reliability, and integration are paramount. The Infineon BTS3028SDR stands out as a state-of-the-art smart high-side power switch, engineered to meet the rigorous demands of modern automotive and industrial applications. This device exemplifies Infineon’s expertise in combining robust power handling with intelligent protection features, all within a compact and efficient package.

The BTS3028SDR is designed to control resistive or inductive loads with precision, offering a continuous current capability of up to 0.7 A and a voltage range of 5.5 V to 28 V, making it suitable for a wide array of 12 V and 24 V systems. Its high-side configuration simplifies wiring and enhances system safety by grounding the load, reducing the risk of short circuits.

One of the key strengths of the BTS3028SDR is its integrated protection features. These include over-current protection, which safeguards against excessive current draw; over-temperature shutdown, preventing thermal damage; and over-voltage clamp, protecting the device from voltage spikes. Additionally, it offers load current feedback through a proportional current sense pin, enabling real-time monitoring and diagnostics—a critical advantage for systems requiring precise control and fault detection.

The device also incorporates reverse battery protection, ensuring operation remains stable even if the power supply polarity is inadvertently reversed. This is particularly valuable in automotive environments, where such events can occur during maintenance or jump-starting.

Housed in a Surface-Mountable Device (SMD) package, the BTS3028SDR is optimized for space-constrained applications while maintaining excellent thermal performance. Its low standby current and efficient switching make it ideal for energy-sensitive systems, contributing to overall power savings and extended battery life.

ICGOOODFIND: The Infineon BTS3028SDR is a versatile and robust smart high-side switch, delivering superior performance, comprehensive protection, and diagnostic capabilities for demanding automotive and industrial power control applications.

Keywords: Smart High-Side Switch, Over-Current Protection, Load Current Feedback, Reverse Battery Protection, Automotive Power Management.