Automotive 3-phase power module enables higher torque systems for lower fuel consumption

May 07, 2013 // By Christoph Hammerschmidt
Automotive engineers are constantly looking for ways to reduce fuel consumption and lower CO2 emissions while at the same time lowering overall system costs. To help designers meet these challenges, Fairchild Semiconductor developed the FTC03V455A1, a 3-Phase, Variable Speed Drive Automotive Power Module.

This device, intended for 3-Phase motor control applications under 2kW, allows designers to reduce the overall system cost of higher power applications. This includes electric power steering (column-mount and rack-mount), electro-hydraulic power steering, electric water pumps, electric oil pumps and engine cooling fans. The FTC03V455A1 allows these applications to deliver higher torque outputs. Additionally, these power modules are more cost-effective than traditional solutions when all aspects of the power stage design (interconnections, mechanical, electrical and thermal) are considered.

Through increased electronics integration, the FTC03V455A1 uses fewer components than discrete solutions and provides a compact system design that delivers better EMI performance. The integrated DC Bus high accuracy current sense resistor enables full control of the electric motor, while the NTC thermistor provides thermal protection.

The module enables an extremely low electrical resistance path between battery and motor, in addition to a complete separation of the control board from the high power stage. This provides high current handling capability at a reduced system cost. The module, measuring 44.00 x 29.00 x 5.00 mm, offers designers better EMC, >1.5KV in electrical isolation and lower motor ripple. Additionally, the module provides better system reliability and easier installation.

Fairchild Semiconductor is leading the way in addressing the semiconductor needs of today's automobile manufacturers. Fairchild combines unmatched expertise in feature-specific silicon solutions with the manufacturing resources and supply chain management efficiencies required to succeed in today’s competitive, dynamic, and fast-paced automotive marketplace. Fairchild Semiconductor works with the world’s leading automakers and system suppliers, creating semiconductor solutions that support a range of applications, including the optimization of power management in modern vehicle architectures, reducing fuel consumption and environmental pollutants.

For more information visit http://www.fairchildsemi.com/pf/FT/FTCO3V455A1.html