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ALLEGRO MICROSYSTEMS  A3987SLPTR-T  MOTOR DRIVER, DMOS, 1.5A, TSSOP-24

ALLEGRO MICROSYSTEMS A3987SLPTR-T
Technical Data Sheet (491.01KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The A3987SLPTR-T is a DMOS complete micro-stepping Motor Driver with a built-in translator for easy operation. It is designed to operate bipolar stepper motors in full, half, quarter and sixteenth step modes, with output drive capability of 50V and ±1.5A. The A3987 includes a fixed off-time current regulator, which has the ability to operate in slow or mixed decay modes. The translator is the key to the easy implementation of the A3987. Simply inputting one pulse on the step input drives the motor to take one micro-step. There are no phase sequence tables, high frequency control lines or complex interfaces to program. The A3987 interface is an ideal fit for applications where a complex microprocessor is unavailable or over-burdened. The A3987 chopping control automatically selects the current decay mode (slow or mixed). When a STEP signal occurs, the translator determines if that step results in a higher or lower current in each of the motor phases.
  • Low RDS(on) outputs
  • Short-to-ground protection
  • Shorted load protection
  • Automatic current decay mode detection/selection
  • Mixed and slow current decay modes
  • Synchronous rectification for low power dissipation
  • Internal UVLO and thermal shutdown circuitry
  • Crossover-current protection
  • Synchronous rectification
  • Mixed decay operation

 

Product Information

Motor Type:
DMOS
No. of Outputs:
2Outputs
Output Current:
1.5A
Output Voltage:
50V
Driver Case Style:
TSSOP
No. of Pins:
24Pins
Supply Voltage Min:
3V
Supply Voltage Max:
5.5V
Operating Temperature Min:
-20°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 2 - 1 year
Supply Voltage Range:
3V to 5.5V
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Automation & Process Control;
  • Portable Devices;
  • Sensing & Instrumentation

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Product Traceability
RoHS Compliant:
Yes

Substitutes

MOTOR DRIVER, DMOS, 1.5A, TSSOP-24, FULL REEL

ALLEGRO MICROSYSTEMS

Awaiting Delivery
Contact us for more availability or to purchase on backorder

Price for: Each (Supplied on Full Reel)

8000+ $2.49

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