SLA7073MRF

Description：IC MOTOR DRIVER SMD
Series：-
Mfr：Sanken Electric USA Inc.
Package：Tube

SKU:b6d0fc114b83 Category: Motor Drivers, Controllers Brand: Sanken Electric USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC MOTOR DRIVER SMD
Series：-
Mfr：Sanken Electric USA Inc.
Package：Tube
Motor Type - Stepper：-
Motor Type - AC, DC：-
Function：-
Output Configuration：-
Interface：-
Technology：-
Step Resolution：-
Applications：-
Current - Output：-
Voltage - Supply：-
Voltage - Load：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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SLA7073MRF

Overview

The SLA7073MRF is a two-phase unipolar stepper motor driver from the Sanken SLA707xM series, housed in a 23-pin package. It integrates low-power CMOS logic with high-current, high-voltage power FET outputs to provide complete control and drive for stepper motors. The device features internal fixed off time and pulse-width modulation (PWM) control of output current. It supports full-, half-, quarter-, eighth-, and sixteenth-step operation externally selectable. Key electrical specifications include a maximum motor supply voltage (VM) of 44V, a load supply voltage (Vs) range of 10V to 44V, and a logic supply voltage (Vcc) of 3V to 5.5V.

Feature Summary

Integrates CMOS sequencing logic with high-current NMOS power outputs for direct stepper motor control without complex interfaces.
Provides internal fixed off time and PWM current control capabilities to manage output performance efficiently.
Supports multiple step resolutions including full, half, quarter, eighth, and sixteenth steps via external selection.

Applications

Personal Computer Peripherals (PPC)
Printers
Office Automation Equipment

Procurement Notes

Verify the specific suffix 'RF' against the manufacturer's official datasheet to confirm pinout compatibility and packaging variations. Ensure the input logic levels match TTL or LSTTL requirements, potentially necessitating pull-up resistors for proper high-state definition. Confirm that the application voltage does not exceed the 44V maximum ratings for both motor and load supplies.

Selection Notes

Select this component when a single-chip solution is required for two-phase unipolar stepper motors with integrated sequencing and drive capabilities. It is suitable for designs where a microprocessor is unavailable or overloaded, as it accepts simple clock and direction inputs. Consider the available step resolution options and the need for external reference voltage and sensing resistor selection for precise current control.

Part Context

The SLA7073MRF belongs to the SLA707xM series by Sanken Electric, designed as a power multi-chip module (PMCM). This series combines digital logic and power electronics to simplify stepper motor interface design. The device eliminates the need for phase-sequence tables and high-frequency control lines, offering a compact alternative to discrete driver implementations in office automation and peripheral devices.

Replacement Considerations

Consult Sanken Electric's official cross-reference tools for verified substitutes. Ensure any replacement maintains compatible voltage ratings, current sinking capabilities, and step mode selectivity. Verify package dimensions and pin assignments before substitution to ensure mechanical and electrical fit within the existing design.