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A3967SLBTR-T

DMOS microstepping driver, 750mA, 30V, SOIC-16

13956

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Pieza del fabricante：

A3967SLBTR-T

Paquete：

SOIC-16 (10.3x7.5mm)

Marca：
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Descripción

Productos

The A3967SLBTR-T from Allegro is a DMOS microstepping motor driver with 750mA per phase, 30V rating, and built-in translator for simple step/direction control of stepper motors.

Especificaciones

Paquete SOIC-16 (10.3×7.5mm)

Características

  • See datasheet for complete specifications
  • Industry-standard package

Aplicaciones

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management

The A3967SLBTR-T from Allegro is a DMOS microstepping motor driver with 750mA per phase, 30V rating, and built-in translator for simple step/direction control of stepper motors.

The A3967SLBTR-T is a DMOS microstepping motor driver from Allegro in SOIC-16, designed for bipolar stepper motors at up to 750mA per phase and 30V supply. It integrates two H-bridges using N-channel DMOS output drivers and internal clamp diodes. Microstepping is controlled by MS1/MS2 pins: full-step, half-step, quarter-step, or eighth-step resolution. The internal DACs set the current level for each microstep according to a sine/cosine lookup table. Current regulation uses a fixed-off-time chopper: when the voltage across the sense resistor exceeds the threshold set by VREF and the DAC, the driver turns off for a period set by the external RC network. The STEP/DIR interface simplifies control: each rising edge on STEP advances the motor one microstep in the direction set by DIR. The ENABLE pin turns off all outputs for torque-free positioning. SLEEP mode reduces quiescent current to under 20uA. The internal 3V regulator provides logic supply from the motor supply.

Pin Nombre Tipo Función
1 ENABLE Entrada Enable (active low, all outputs off when HIGH)
2 MS1 Entrada Microstep select bit 1
3 MS2 Entrada Microstep select bit 2
4 SLEEP Entrada Sleep mode (active low, pulled HIGH internally)
5 STEP Entrada Step input (rising edge triggers step)
6 DIR Entrada Direction input
7 SENSE1 Entrada Current sense resistor 1 (motor output A)
8 OUT1A Salida H-bridge A output 1
9 OUT1B Salida H-bridge A output 2
10 RC1 Analógico RC timing for chopper 1
11 RC2 Analógico RC timing for chopper 2
12 OUT2A Salida H-bridge B output 1
13 OUT2B Salida H-bridge B output 2
14 SENSE2 Entrada Current sense resistor 2 (motor output B)
15 REF Analógico Voltage reference for current set
16 VDD Potencia Logic supply (3.0-5.5V)
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management
    • Fabricante Número de pieza Paquete Notas
    Allegro A4988SESTR-T QFN-28 DMOS microstepping, 2A, 35V
    Texas Instruments DRV8825PWPR HTSSOP-28 2.2A, 45V, 1/32 microstep
    Trinamic TMC2209-LA QFN-28 2A, 29V, StallGuard, StealthChop
    Allegro A4983SLBTR-T SOIC-16 Predecessor, 350mA
    Monolithic Power MP6500GUJ-A QFN-28 2.5A, 35V, internal sense
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    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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