STMicroelectronics is working with Sanken Electric in Japan on the design of high voltage intelligent power modules (IPM) for industrial and automotive designs.
The two companies are developing and will jointly market 650V/50A and 1200V/10A industrial modules, which simplify design challenges and shrink the bill of materials for HVAC systems, industrial servo drives, industrial washing machines, and general-purpose inverters over 3 kW. The IPM product roadmap will continue with 650V/50A automotive-grade modules for high-voltage compressors, pumps, and cooling fans.
Engineering samples of industrial IPMs are expected in March 2021 with production shortly after and automotive grade IPMs in the second half of 2021
“With ST and Sanken contributing their strengths, we can bring these new high-voltage, high-power IPMs to industrial and automotive markets, ensuring superior performance, efficiency, and reliability,” said Masao Hoshino, Director and Head of Device Business Corporate Headquarters of Sanken.
“These new devices extend our established STPOWER SLLIMM portfolio with a High-Power (HP) product line to address applications over 3 kW and introduce our first automotive-grade IPMs that permit sleeker designs and greater reliability,” said Marco Monti, President, Automotive and Discrete Group, at STMicroelectronics.
IPMs let designers replace traditional power circuits built using discrete components with a compact, integrated device that simplifies circuit layout and PCB design. This helps accelerate time to market and improve cost-effectiveness and reliability. Leveraging easier manufacturing, faster assembly, and bill-of-materials savings, designers of high-voltage equipment can create new generations of power products that are space-saving, economical, energy-efficient, and robust.
The IPM designs integrate a complete inverter stage including six short-circuit rugged IGBTs with freewheeling diodes, associated high-side and low-side gate drivers in a single package designed optimally for thermal efficiency. Ready to operate in hard switching up to 20 kHz, the modules also contain built-in features for protection and control. These include bootstrap diodes, short-circuit protection, under-voltage lockout protection for gate drivers, a 100 kΩ thermistor for temperature monitoring, and a comparator for fault protection.
The modules have 3.3V/5V TTL/CMOS-compatible inputs with hysteresis, shutdown input and fault outputs with separate open-emitter outputs. The fully isolated package has an isolation rating of 2500Vrms/min and also includes fast, soft-recovery diodes.
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