The A2918SWH and A2918SWV motor drivers are designed to drive both windings of a bipolar stepper motor or bidirectionally
control two dc motors. All bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the
output current to 1.5 A.
For PWM current control, the maximum output current is determined by the user’s selection of a reference voltage and sensing
resistor. A PHASE input to each bridge determines load current direction. Active low ENABLE inputs control the four drivers in each bridge.
The bridges include both ground clamp and flyback diodes for protection against inductive transients. Internally generated delays
prevent cross-over currents when switching current direction. Special power-up sequencing is not required. Thermal protection circuitry
disables the outputs if the chip temperature exceeds safe operating limits.
|Voltage – Supply||7 V|
|Operating Temperature||-20°C ~ 85°C|
|Supplier Device Package||SIP-18|