REF 1. SLEEP 3. OUT 2B 4. GND 6. GND 7. SENSE 2 8.
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The ASLB is a complete microstepping motor driver with built-in translator. The ASLB 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 ASLB. 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-frequency control lines, or complex interfaces to program. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout UVLO and crossover-current protection. Special power-up sequencing is not required. The tabs are at ground potential and need no insulation. Current Sensing. Current Sensors Innovations. Switches and Latches. Hall Effect Latches Bipolar Switches.
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A3967: Microstepping Driver with Translator
3967 Datasheet PDF