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Part Name(s) : A3989_V Allegro
Allegro MicroSystems
Description : Bipolar stepper and High Current DC motor driver View

Description
The A3989 is designed operate at voltages up to 36 V while driving one bipolar stepper motor, at currents up to 1.2A, and one DC motor, at currents up to 2.4 A. The A3989 includes a fixed off-time pulse width modulation (PWM) regulator for current control. The stepper motor driver features dual 2-bit nonlinear DACs (digital-to-analog converters) that enable control in full, half, and quarter steps. The DC motor is controlled using standard PHASE and ENABLE signals. Fast or slow current decay is selected via the MODE Pin. The PWM current regulator uses the Allegro™ patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation.

Features and Benefits
▪ 36 V output rating
▪ 2.4 A DC motor driver
▪ 1.2 A bipolar stepper driver
▪ Synchronous rectification
▪ Internal undervoltage lockout (UVLO)
▪ Thermal shutdown circuitry
▪ Crossover-current protection
▪ Very thin profile QFN package

Part Name(s) : A3989 A3989SEV-T A3989SEVTR-T A3989 A3989SEV-T A3989SEVTR-T Allegro
Allegro MicroSystems
Description : Bipolar stepper and High Current DC motor driver View

Description
The A3989 is designed operate at voltages up to 36 V while driving one bipolar stepper motor, at currents up to 1.2A, and one DC motor, at currents up to 2.4 A. The A3989 includes a fixed off-time pulse width modulation (PWM) regulator for current control. The stepper motor driver features dual 2-bit nonlinear DACs (digital-to-analog converters) that enable control in full, half, and quarter steps. The DC motor is controlled using standard PHASE and ENABLE signals. Fast or slow current decay is selected via the MODE Pin. The PWM current regulator uses the Allegro™ patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation.

Features and Benefits
▪ 36 V output rating
▪ 2.4 A DC motor driver
▪ 1.2 A bipolar stepper driver
▪ Synchronous rectification
▪ Internal undervoltage lockout (UVLO)
▪ Thermal shutdown circuitry
▪ Crossover-current protection
▪ Very thin profile QFN package

Part Name(s) : A4986 A4986SLPTR-T Allegro
Allegro MicroSystems
Description : DMOS Dual Full-Bridge PWM motor driver View

The A4986 is a dual DMOS full-bridge stepper motor driver with parallel input communication and overcurrent protection. Each full-bridge output is rated up to 35 V and ±2 A.

The A4986 includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps. The PWM current regulator uses the Allegro®patented mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation.




Part Name(s) : A3982 A3982SLB-T A3982SLBTR-T Allegro
Allegro MicroSystems
Description : DMOS stepper motor driver with Translator View

Description

The A3982 is a complete stepper motor driver with built in translator for easy operation. It is designed to operate bipolar stepper motors in full- and half-step modes, with an output drive capacity of up to 35 V and ±2 A. The A3982 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.



Features and Benefits

▪Low RDS(on)outputs

▪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



Part Name(s) : MAS9012 MAS9012A1 MAS9012A2 MAS9012A3 MAS9012A4 MAS9012A1UA06 MAS9012A2UA06 MAS9012A3UA06 MAS9012A4UA06 MAS
Micro Analog systems
Description : stepper motor driver IC View

DESCRIPTION
MAS9012 is a Miniature stepper motor driver IC with four different versions to drive one to four motors of pointers in motorcycle and car dashboards and other similar applications. It features a microstepPing function to allow smooth movement of the motor shaft. One microstep corresponds to an angular rotation of 1/12 degree of the motor shaft. The actual precision of the position is affected by the gear play of the motor.

FEATURES
• Bipolar stepper motor driver Outputs
• Drives One to Four stepper motors
• MicrostepPing Function
• Glitch Filters at All Inputs
• Low Operating Voltage
• TSSOP-16 and TSSOP-28 Packages

APPLICATIONS
motorcycle Dashboards
• Car Dashboards
• Nautical Instrumentation
• Miniature stepper motors in Appliances

Part Name(s) : A4979 Allegro
Allegro MicroSystems
Description : MicrostepPing Programmable stepper motor driver With Stall Detect and Short Circuit Protection View

Description

The A4979 is a flexible microstepPing motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 50 V and 1.5 A. The A4979 can be controlled by simple Step and Direction inputs, or through the SPI-compatible serial interface that also can be used to program many of the integrated features and to read diagnostic information.



Features and Benefits

• Typical application up to 1.5 A, 50 V

• Stall detect features

• Low R

DS(on)outputs, 0.5 Ωsource and sink, typical

• Automatic current decay mode detection/selection

• Mixed, Fast, and Slow current decay modes

• Synchronous rectification for low power dissipation

• Internal UVLO and Thermal Shutdown circuitry

• Crossover-current protection

• Short circuit and open load diagnostics

• Hot and cold thermal warning

• SPI-compatible or simple Step and Direction motion control

• Highly configurable via SPI-compatible serial interface



Applications

• Industrial stepper motor drives

• Printers

• Textile machines


Part Name(s) : PBL3772-1 PBL3772/1 PBL37721 PBL3772/1NS PBL3772/1QNS PBL3772/1QNT PBL37721NS PBL37721QNS PBL37721QNT Ericsson
Ericsson
Description : Dual stepper motor driver View

Description
The PBL 3772/1 is a switch-mode (chopper), constant-current driver IC with two chan-nels, one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3771/1, but has been designed to generate a minimum amount of power dissipation and can deliver substantially more current to the stepper motor, up to 1000 mA continuously per channel. At 2 x 750 mA output current, power dissipation is only 1.8 W

Key Features
• Dual chopper driver in a single package.
• Operation at -40 C
• 1000 mA continuous output current per channel.
• Very low power dissipation, 1.8 W at 2 x 750 mA output current.
• Close matching between channels for high microstepPing accuracy.
• Specially matched to the Dual DAC PBM 3960.
• Plastic 22-Pin batwing DIP package or 28-Pin power PLCC with leadframe for heat-sinking through PC board copper.

Part Name(s) : PBL3775-1NS PBL3775-1QNS PBL3775-1QNT PBL3775-1SOS PBL3775-1SOT Ericsson
Ericsson
Description : Dual stepper motor driver View

Description

The PBL 3775/1 is a switch-mode (chopper), constant-current driver IC with two channels, one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3773/1. While several of Ericsson´s dual stepper motor drivers are optimized for micro-stepPing applications, PBL 3775/1 is equipped with a disable input to simplify half-stepPing operation.



Key Features

• Dual chopper driver in a single package.

• Operation down to -40°C.

• 750 mA continuous output current per channel.

• Low power dissipation, 2.0 W at 2 x 500 mA output current.

• Close matching between channels for high microstepPing accuracy.

• Digital filter on chip eliminates external filtering components.

• Plastic 22-Pin batwing DIL package, 24-Pin SOIC batwing or 28-Pin power PLCC. All with lead-frame for

heatsinking through PC board

copper.


Part Name(s) : L9942 L9942XP1 L9942XP1TR ST-Microelectronics
STMicroelectronics
Description : Integrated stepper motor driver for bipolar stepper motors with microstepPing and programmable current profile View

Description

The L9942 is an integrated stepper motor driver for bipolar stepper motors with microstepPing and programmable current profile look-up-table to allow a flexible adaptation of the stepper motor characteristics and intended operating conditions.

It is possible to use different current profiles depending on target criteria: audible noise, vibrations, rotation speed or torque.



Features

■ Two full bridges for max. 1.3 A load (RDSON= 500 m)

■ Programmable current waveform with look-up table: 9 entries with 5 bit resolution

■ Current regulation by integrated PWM controller and internal current sensing

■ Programmable stepPing mode: full, half, mini and microstepPing

■ Programmable slew rate for EMC and power dissipation optimization

■ Programmable Fast-, Slow-, Mixed- and Auto Decay Mode

■ Full-scale current programmable with 3 bit resolution

■ Programmable stall detection

■ Step clock input for reduced µController requirements

■ Very low current consumption in standby mode IS< 3 µA, typ. Tj 85 °C

■ All outputs short circuit protected with openload, overload current, temperature warning and thermal shutdown

■ The PWM signal of the internal PWM controller is available as digital output.

■ All parameters are guaranteed for 3 V < Vcc < 5.3 Vand for 7 V < Vs < 20 V

Applications


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