This solution is showing a motor control reference design for power tools. The power source (battery or main power supply) is not part of this proposal and is represented here as a simple battery pack.
For this reference design, Renesas choose a high voltage solution (48V), which features the high-performance Arm®-M4 based RA6M3 MCU. It has specific PWM timers for 3-phase motor control and a floating point unit (FPU) to enhance algorithm performance.
This block diagram shows a setup that includes an embedded power supply for the MCU (3.3V) and MOSFET half-bridge drivers (12V).
- These discrete solutions have an embedded LDO for the MCU power supply and are powered by the high motor voltage rail
- Although 3 parts are needed, overall board space is optimized because of the embedded LDO
|RA6M3||120MHz Arm® Cortex®-M4F core with USB High-Speed, Ethernet and TFT controller||Datasheet||Select Specific Device|
|HIP2103||60V, 1A/2A peak, half bridge driver with 4V UVLO||Datasheet||Buy/Sample|
|HIP2104||60V, 1A/2A peak, half bridge driver with 4V UVLO and two internal LDOs 12V and 3.3V||Datasheet||Buy/Sample|
Renesas’ complementary product portfolios of Analog + Power + Embedded Processing work together to deliver comprehensive solutions to our customers. Our product experts have developed "Winning Combinations," compelling product combinations that help our customers accelerate their designs and get to market faster.