Diodes Incorporated (Diodes) has developed two demo boards featuring its automotive ‘Q’ MOSFET and portfolio of gate driver ICs to target BLDC Motor applications in the automotive sector.
The DDB094R2 board has three dual N-Channel MOSFETs (DMN3032LFDBQ), with a 30V rating and 30mΩ RDS(ON). Each device comes in a space-saving U-DFN2020-6 package measuring only 2mm x 2mm.
The dimensions of the board itself are only 60mm x 38mm in a circular design which makes it ideal for mounting directly onto a motor. It has two layers and includes the gate drivers and current sense resistors required for it to interface directly with a microcontroller.
The DDB099 board has a larger form factor and includes the DMTH6010LPDQ MOSFETs. These are 60V dual N-Channel and 11mΩ
RDS(ON) in the 5mm x 6mm PowerDI5060 package. The board itself measures 100mm x 60mm and it has four layers. It also includes three
current sense resistors to measure current in each of the three phases independently, thus enabling sensorless commutation schemes to
be implemented.
