Battery-powered motor control with ten half-bridges
The MPC17559EPR2 is a fully integrated motor driver from NXP that combines control logic and power stage in one 56-QFN package. It drives both brushless DC (BLDC) and brushed DC motors from a battery supply, with the load voltage spanning 0.9V to 3.5V and the logic supply running on 1.8V to 3.5V. Ten half-bridge outputs give this part unusual flexibility for its class — enough to drive a three-phase BLDC motor with six bridges and still have four left for solenoids, latches, or a second smaller motor. Each bridge is rated for 300mA continuous output.
What the 300mA and ten bridges mean for your BOM
300mA per half-bridge at the rated load voltage means this driver is sized for small battery-powered actuators — think camera lens motors, haptic feedback, portable pump drives, or toy-grade robotics. The ten bridges let you run, for example, two three-phase BLDC motors (six bridges) plus four brushed DC motors (one bridge each) from a single IC. The Power MOSFET output stage keeps conduction losses low at the 300mA operating point. With the supply rail at 3.5V max, the total dissipation across ten bridges stays within the 56-QFN's thermal budget when the ambient stays below 65°C.
Housed in a 56-VFQFN with an exposed pad (supplier package designation 56-QFN 8x8), the MPC17559EPR2 requires a surface-mount reflow profile compatible with lead-free solder. The parallel interface gives direct control over each half-bridge — no SPI or I2C setup overhead. This suits designs where the host MCU has spare GPIOs and needs deterministic switching latency.