A3955 is designed to drive one winding of a bipolar stepper motor in microstepping mode. The outputs are rated for continuous output currents up to ±1.5 A and operating voltages up to 50 V. Internal pulse bit modulated (PWM) current control combined with the internal three-bit non-linear digital-to-analog converter allows precise control of the motor current. , half, quarter or eighth step (microstep) modes. Non-linear increments minimize the number of control lines required for microstepping. Microstepping provides increased step resolution and reduces torque variations and resonance problems at low speed.
Product Category |
Motor Drive |
Supply Voltage |
4.5 - 5.5V |
Engine Type - Step |
Bipolar |
Step Resolution |
1, 1/2, 1/4, 1/8 |
Output Current |
1.5A |
Number of Pins |
16 |
Package Type |
SMD SO-16 |