Products with components from Allegro Microsystems

These carrier boards for Allegro’s A4988 bipolar stepper motor driver feature adjustable current limiting, over-current and over-temperature protection, and five microstep resolutions (down to 1/16-step). They operate from 8 V to 35 V and can deliver approximately 1 A per phase without a heat sink (they are rated for up to 2 A per coil).

These Black Edition drivers are higher-performance drop-in replacements for the original A4988 stepper motor driver carrier. They feature a four-layer PCB for better thermal performance, allowing the A4988 microstepping bipolar stepper motor driver to deliver approximately 20% more current than our two-layer version.

These carrier boards for Allegro’s A5984 stepper motor drivers are great low-cost solutions for controlling bipolar stepper motors. They operate from 8 V to 40 V and can deliver up to 1.2 A continuous per phase (2 A peak). Fixed and adjustable current limit versions are available.

These boards are simple carriers of Allegro’s 3.3V ACS37030 DC to 5 MHz bandwidth, galvanically isolated current sensors, which output an analog voltage proportional to the current passing through them. They offer differential sensing for higher accuracy, a low-resistance (~0.7 mΩ) current path, and a zero-current reference output.

These boards are simple carriers of Allegro’s high-current ACS37220 Hall effect-based, galvanically isolated current sensors, which output an analog voltage proportional to the current passing through them. They offer differential sensing, an extra-low-resistance (~0.1 mΩ) current path, and configurable overcurrent fault. 3.3V and 5V versions are available.

These boards are simple carriers for Allegro’s ACS37041 Hall effect-based, galvanically isolated current sensor in a 5-pin SOT-23 package with ~1.6 mΩ current path resistance, differential sensing, and 150 kHz bandwidth. 3.3V and 5V versions are available with up to ±30A current range.

These boards are simple carriers of Allegro’s ACS711 Hall effect-based, galvanically isolated current sensors, which work with both 3.3V and 5V supplies and output an analog voltage proportional to the current passing through them.

These boards are simple carriers of Allegro’s ACS71240 Hall effect-based, galvanically isolated current sensors, which output an analog voltage proportional to the current passing through them. They offer differential sensing for higher accuracy and a low-resistance (~0.6 mΩ) current path. 3.3V and 5V versions are available.

These boards are simple carriers of Allegro’s 5V ACS724 Hall effect-based, galvanically isolated current sensors, which output an analog voltage proportional to the current passing through them. They offer differential sensing for higher accuracy and a low-resistance (~0.6 mΩ) current path.

These boards are simple carriers of Allegro’s high-current ACS72981 Hall effect-based, galvanically isolated current sensors, which output an analog voltage proportional to the current passing through them. They offer differential sensing, a low-resistance (~0.2 mΩ) current path, and a high 250 kHz bandwidth. 3.3V and 5V versions are available.

These boards are simple carriers of Allegro’s high-dV/dt, high bandwidth (1 MHz) CT432/CT433 tunneling magneto­resistance (TMR) current sensors, which output an analog voltage proportional to the current passing through them. They offer common-field mode rejection, a low-resistance (~1 mΩ) current path, and overcurrent fault. 3.3V and 5V versions are available.