The A3967SLB is a complete microstepping motor driver with built-in translator. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes, with output drive capability of 30 V and ±750 mA. The A3967SLB includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed current-decay modes. This current-decay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation. The translator is the key to the easy implementation of the A3967SLB. By simply inputting one pulse on the STEP input the motor will take one step (full, half, quarter, or eighth depending on two logic inputs). There are no phase-sequence tables, high-fre
The A3967SLB is a complete microstepping motor driver featuring a built-in translator designed to simplify control of bipolar stepper motors. It supports full-, half-, quarter-, and eighth-step modes with output drive capabilities of 30 V and ±750 mA.
Key features include automatic current-decay mode detection, internal circuit protection such as thermal shutdown and under-voltage lockout (UVLO), and a translator that allows step control with minimal lines. The device is supplied in a 24-lead SOIC package with copper batwing tabs.
| Load Supply Voltage (V BB) | 4.75 V to 30 V |
|---|---|
| Output Current (Continuous) | ±750 mA |
| Logic Supply Voltage Range | 3.0 V to 5.5 V |
| Operating Temperature Range | -20°C to +85°C |
| Package Type | 24-lead SOIC with copper batwing tabs |
The device supports full-, half-, quarter-, and eighth-step modes.
The device supports a continuous output current of ±750 mA.
It operates within an ambient temperature range of -20°C to +85°C.