A3955SBT (DIP-16)
A3955SBT (DIP-16) FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER:
- Load Supply Voltage, VBB50 V=
- Output Current, IOUT(Continuous) = ±1.5 A*
- Logic Supply Voltage, VCC= 7.0 V
Product Description
DESCRIPTION:
- The A3955SB and A3955SLB are designed for driving one winding of a bipolar stepper motor in a microstepping mode.
- The outputs are rated for continuous output currents to ±1.5 A and operating voltages to 50 V. Internal pulse-width modulated (PWM) current control combined with an internal three-bit nonlinear digital-to-analog converter allows the motor current to be controlled in full-, half-, quarter-, or eighth-step (microstepping) modes. Nonlinear increments minimize the number of control lines necessary for microstepping. Microstepping provides for increased step resolution, and reduces torque variations and resonance problems at low speed.
- Technical sheet: https://pdf1.alldatasheet.fr/datasheet-pdf/view/55110/ALLEGRO/A3955SB.html
FEATURES:
- ±1.5 A Continuous Output Current
- 50 V Output Voltage Rating
- Internal PWM Current Control
- 3-Bit Non-Linear DAC
- Fast, Mixed Fast/Slow, and Slow Current-Decay Modes
- Internal Transient-Suppression Diodes
- Internal Thermal-Shutdown Circuitry
- Crossover-Current and UVLO Protection
ABSOLUTE MAXIMUM RATINGS:
- Load Supply Voltage, VBB50 V=
- Output Current, IOUT(Continuous) = ±1.5 A*
- Logic Supply Voltage, VCC= 7.0 V
- Logic/Reference Input Voltage Range,VIN= -0.3 V to VCC= + 0.3 V
- Sense Voltage, VS= 1.0 V
- Operating Temperature Range, TA= -20 ̊C to +85 ̊C
- Junction Temperature, TJ= +150 ̊C†
- Storage Temperature Range, TS= -55 ̊C to +150 ̊C
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