Motor Drive
MOSFETs, gate drivers, and protection for BLDC, stepper, and servo motor drives
Motor-drive applications stress every part of the power chain — high currents through low-Rds MOSFETs, fast switching transitions that demand robust gate drive, and reverse-EMF events that hammer the protection devices. Magnias supplies the discrete MOSFETs (30V to 200V class), Schottky diodes, ESD/TVS protection, and small-signal ICs that sit alongside the gate driver in BLDC, brushed-DC, stepper, and servo motor systems. Across the 5×6 SO-8FL and 3×3 DFN-8 packages we offer Rds(on) values from 1 mΩ up — letting designers right-size for current, switching loss, and PCB area.
Application areas
BLDC three-phase inverter
- 100V/150V N-Channel MOSFET ×6 (low-Rds for low-loss commutation)
- Bootstrap Schottky diodes
- Gate-source ESD protection
- Logic-level shifter for control bus
Brushed-DC H-bridge
- 30V / 60V P+N MOSFET pairs
- Low-IQ LDO (3.3V control rail)
- TVS for back-EMF clamping
- Open-drain INT signaling
Stepper motor driver
- 40V N-Channel MOSFET (logic-level Vth)
- Comparator (over-current sense)
- ESD on step/dir inputs
- Buck for VCC regulation
Servo / robotic actuators
- 60V / 100V MOSFET (PWM stage)
- Push-pull level shifter (encoder interface)
- Photodiode bias LDO (optical encoder)
- Sensor signal-path ESD
Browse Magnias products for this segment
Industrial motor-drive customers often require AEC-Q101 (-A suffix) for automotive crossover applications. Contact our FAE team for qualification details on specific MOSFET part numbers.
Request samples or motor-drive design support
Designing a BLDC, servo, or stepper motor drive? Share your motor specs and target current — we'll recommend the right MOSFET pair, gate-drive bias rail, and protection mix, and ship samples within one business day.