Infineon BSO615N: A High-Performance Smart High-Side Power Switch

In the realm of power management and control, efficiency, reliability, and integration are paramount. The Infineon BSO615N stands out as a state-of-the-art smart high-side power switch engineered to meet the rigorous demands of modern automotive, industrial, and consumer applications. This device exemplifies Infineon’s expertise in power semiconductor technology, combining robust switching capabilities with advanced diagnostic and protection features in a compact package.

At its core, the BSO615N is designed to drive resistive or inductive loads with precision, handling a continuous output current of up to 140 mA and operating voltages up to 42 V. Its high-side configuration simplifies circuit design by controlling the power supply path directly, reducing component count and board space. The integration of a vertical power MOSFET ensures minimal on-state resistance (RDS(on)), leading to reduced conduction losses and improved thermal performance, which is critical for energy-sensitive applications.

One of the key strengths of the BSO615N lies in its comprehensive suite of protection features. These include over-current protection (OCP), over-temperature shutdown (OTSD), and over-voltage clamp, which safeguard both the switch and the connected load from fault conditions. Additionally, the device offers advanced diagnostic feedback such as load current sense, open-load detection, and short-circuit reporting. This intelligence allows system controllers to monitor operational status in real-time, enabling predictive maintenance and enhancing overall system reliability.

The BSO615N also supports PWM (Pulse Width Modulation) capability for proportional load control, making it suitable for applications requiring variable power delivery, such as motor driving or LED dimming. Its low standby current and compatibility with 3.3 V and 5 V logic-level inputs further enhance its versatility across various microcontroller-based systems.

Packaged in a space-efficient PG-TSDSO-14, the BSO615N is optimized for automated assembly processes, ensuring cost-effectiveness and manufacturing scalability. Its AEC-Q100 qualification makes it particularly suited for automotive environments, where durability under extreme temperatures and vibrations is essential.

ICGOODFIND: The Infineon BSO615N is a highly integrated smart high-side switch that delivers superior performance, robust protection, and diagnostic intelligence. It is an ideal solution for applications demanding efficient power switching, system reliability, and simplified design, solidifying Infineon’s leadership in smart power devices.

Keywords:

Smart High-Side Switch, Over-Current Protection, PWM Capability, Diagnostic Feedback, AEC-Q100 Qualified