ALLEGRO MICROSYSTEMS  A3977SLPTR-T  MOTOR DRIVER, DMOS, 2.5A, TSSOP-28

ALLEGRO MICROSYSTEMS A3977SLPTR-T

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Product Overview


The A3977SLPTR-T is a Microstepping DMOS Motor Driver with built-in translator. It is designed to operate bipolar stepper motors in full, half, quarter and eighth-step modes. It includes a fixed off-time current regulator that has the ability to operate in slow, fast or mixed-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. Simply inputting one pulse on the STEP input drives the motor one step. There are no phase-sequence tables, high-frequency control lines or complex interfaces to program. The interface is an ideal fit for applications where a complex microprocessor is unavailable or over-burdened. Internal synchronous-rectification control circuitry is provided to improve power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, under voltage lockout and crossover-current protection.
  • ±2.5A, 35V Output rating
  • Low RDS(on) outputs, 0.28Ω source, 0.22Ω sink typical
  • Automatic current decay mode detection/selection
  • 3 to 5.5V Logic supply voltage range
  • Mixed, fast and slow current decay modes
  • Home output
  • Synchronous rectification for low power dissipation
  • Internal UVLO and thermal shutdown circuitry
  • Crossover-current protection

Applications

Motor Drive & Control
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Product Specifications, Documents & More


  • Driver Case Style: TSSOP
  • MSL: -
  • Motor Type: DMOS
  • No. of Outputs: 2
  • No. of Pins: 28
  • Operating Temperature Max: 85°C
  • Operating Temperature Min: -20°C
  • Output Current: 2.5A
  • Output Voltage: 35V
  • Packaging: Cut Tape
  • SVHC: No SVHC (15-Jun-2015)
  • Supply Voltage Max: 5.5V
  • Supply Voltage Min: 3V
  • Supply Voltage Range: 3V to 5.5V

Availability

Availability:  16,687


  • 16,687 in stock for same day shipping
 
Check stock and lead times
    More stock available week commencing 4/4/16

Price for: Cut Tape 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $5.18 $5.18

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Price

Quantity List Price
1 - 9 $5.18
10 - 49 $4.65
50 - 99 $4.18
100 - 249 $3.79
250 - 499 $3.42
500 - 999 $3.24
1000 - 2499 $2.61
2500+ $2.43
 
 
Low

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Substitutes


  Newark Part No. Manufacturer Part No Manufacturer / Description
Availability Price Qty
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Exact
08J5884
A3977SLPTR-T

A3977SLPTR-T

ALLEGRO MICROSYSTEMS

MOTOR DRIVER, STEPPER, 2.5A, TSSOP-28, FULL REEL

0

Price for: Full Reel 1

8000+ $2.26

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    More stock available week commencing 6/6/16

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