Archive : 30 March 2026 год

STMicroelectronics has expanded its automotive driver portfolio with two advanced families of devices aimed at improving reliability, protection, and efficiency in modern vehicles. The VNQ9050LAJ intelligent high-side driver is designed for robust 12 V load control, while the STGAP2SA and STGAP2HSA isolated gate drivers target high-voltage applications in electric and hybrid vehicles.

VNQ9050LAJ – Intelligent 4-Channel High-Side Driver

The VNQ9050LAJ is a four-channel high-side driver based on ST’s VIPower-M09 technology. Optimized for 12 V automotive systems, it operates reliably down to 4 V and can withstand voltage drops to 2.7 V during cold cranking. With a low typical on-resistance of 50 mΩ, the device delivers high efficiency when driving resistive, capacitive, and inductive loads.

Key features include accurate current sensing via an integrated sense FET, comprehensive diagnostics, and advanced protection mechanisms that meet the stringent LV124 automotive electrical stress standard.

STGAP2SA and STGAP2HSA – Isolated Gate Drivers

The STGAP2SA and STGAP2HSA are AEC-Q100 qualified isolated gate drivers intended for IGBTs and silicon MOSFETs in high-voltage systems up to 1,200 V. They provide up to 4 A source/sink current, support drive voltages up to 26 V, and feature a fast propagation delay of approximately 60 ns.

These drivers offer excellent isolation, comprehensive safety features, and enable higher switching frequencies, helping designers reduce the size of passive components and increase overall power density.

Target Applications

• VNQ9050LAJ: lighting, pumps, fans, valves, and other 12 V grounded loads in passenger cars
• STGAP2SA / STGAP2HSA: DC-DC converters, on-board chargers, traction inverters, e-compressors, heaters, and pumps in electric and hybrid vehicles

Both driver families are now in production, with evaluation boards available to speed up development.