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High-Performance Power ICs and Hall-Effect Sensors
Related Links:
Datasheets:
SLA7070M, SLA7071M, SLA7072M, and SLA7073M: Motor Driver IC Family (PDF),
SLA7075M, SLA7076M, SLA7077M, and SLA7078M: Motor Driver IC Family (PDF)
Selection Guides:
Power Motor Drivers - Unipolar Stepper
Technical Publications:
Series SLA7070M Motor Driver ICs (PDF)
Press Releases:
SLA7070M Series: Allegro Introduces Unipolar Two-Phase Stepping Motor Driver ICs
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SLA7070M, SLA7071M, SLA7072M, SLA7073M, SLA7075M,
SLA7076M, SLA7077M, and SLA7078M
Motor Driver IC Family
Features and Benefits
- Power supply voltages, VBB: 46 V(max.), 10 to 44 V normal operating range
- Logic supply voltages, VDD: 3.0 to 5.5 V
- Maximum output currents: 1 A, 1.5 A, 2 A, 3 A
- Built-in sequencer
- Simplified clock-in stepping control
- Both full/half-stepping (SLA7070M to SLA7073M) and microstepping (SLA7075M to SLA7078M)
- Built-in sense resistor, RSInt
- All variants are pin-compatible for enhanced design flexibility
- ZIP type 23-pin molded package (SLA package)
- Self-excitation PWM current control with fixed off-time
- Built-in synchronous rectifying circuit reduces losses at PWM off
- Synchronous PWM chopping function prevents motor noise in Hold mode
- Sleep mode for reducing the IC input current in stand-by state
- Built-in protection circuitry against motor coil opens/shorts option available
Description
The SLA7070M series motor driver ICs feature unipolar drivers. The clock-in type input interface allows simplified control logic, and options for built-in sense current detection and load circuit short or open protection (patent pending) provide lower loss, and lower thermal resistance. All products in the SLA7070M series are pin-compatibile, supporting rapid design of application variants.
The built-in excitation distribution circuit (sequencer) allows motor control using only the CLOCK signal for simple operations (rotate/stop), with motor speed control by frequency input into CLOCK pin. This eliminates logic signal lines required for conventional phase-input methods, and reduces demand on heavily-used CPUs.
Contact Allegro® for application information and additional information on device performance and logic.
| Part Number | Package Type | RoHS Compliant |
Part Composition/ RoHS Data |
Temperature | Comments | Samples | Distributor Stock |
|---|---|---|---|---|---|---|---|
| SLA7070MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7070MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7071MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7071MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7072MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7072MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7073MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7073MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7075MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7075MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7076MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7076MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7077MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7077MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7078MPR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new | ||
| SLA7078MR | 23-pin SIP | Yes | -- | -20 °C to 85 °C | new |
Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.