Three-phase half-bridge driver for 12V to 48V BLDC motor drives
Operating junction temperature spans -40°C to 115°C.
The three half-bridge channels share a common supply pin, so a single bootstrap capacitor per phase handles the high-side gate drive. The non-inverting input means the MCU PWM outputs connect directly — no inversion logic needed between the timer and the driver input.
Package and thermal considerations for the layout
The 115°C junction limit means the PCB copper area and airflow must keep the junction below that at full load.
For dual-sourcing resilience, note that the MOTIX™ series includes several 3-phase driver variants, but no pin-compatible second-source alternate is listed in the available documentation — verify footprint compatibility if considering an alternate.