STMicroelectronics Quad High Side Power Relay Driver IC, SOIC-10

The STMicroelectronics VN330SP-E is a sophisticated quad high side smart power Solid State Relay driver, designed to control four independent resistive or inductive loads connected to ground. It is engineered for reliable power management in demanding applications, integrating multiple protection features to ensure system integrity and device longevity.

Key to its design is an active current limitation circuit that prevents the system power supply from dropping in the event of a shorted load. The device is further safeguarded by built-in thermal shut-down, which protects the chip from damage due to over-temperature and short-circuit conditions. An open-drain diagnostic output provides a clear signal to indicate over-temperature events, allowing for immediate system response.

Capable of delivering an output current of 0.7A per channel, this driver operates from a wide supply voltage range of 10V to 36V. Its digital inputs are clamped for protection, with a minimum voltage rating of 32V. Additional features include under-voltage shutdown for stable operation and a fast demagnetisation function for efficient handling of inductive loads, minimising voltage spikes.

Housed in a compact SOIC-10 package, this robust component is built to operate in a broad temperature range from -40°C to 125°C, making it suitable for industrial and automotive environments. Its comprehensive protection suite and high-side drive capability make it an excellent choice for designers seeking a reliable and integrated solution for load switching and control.