SLA7075MPR

Overview

The SLA7075MPR is a two-phase unipolar stepper motor driver from the Sanken Electric USA Inc. SLA707xM series, housed in a 23-pin ESIP molded lead package. It integrates low-power CMOS logic with high-current power FET outputs to provide complete control and drive for unipolar stepper motors. The device supports full, half, quarter, eighth, and sixteenth-step operation externally selectable. Key electrical specifications include a logic supply voltage (Vcc) of 3V to 5.5V, a load supply voltage (Vs) range of 10V to 44V, and a maximum motor supply voltage (VM) of 44V. The NMOS outputs are capable of sinking up to 1.5A and withstanding 46V in the off state.

Feature Summary

• Integrates sequencing logic, direction control, synchronous/asynchronous PWM operation, and a sleep function within a single power multi-chip module.
• Supports externally selectable step resolutions including full, half, quarter, eighth, and sixteenth steps for precise motor positioning.
• Features internal fixed off-time and pulse-width modulation (PWM) control of output current without requiring complex interfaces or phase-sequence tables.
• Includes clamp diodes for protection against inductive transients and does not require special power-up sequencing.

Applications

• Personal printers
• Office automation equipment
• Peripheral devices

Procurement Notes

Verify the specific suffix 'MPR' against the manufacturer's datasheet to confirm pinout and packaging details, as variations exist within the SLA707xM family. Ensure the design accommodates the 23-ESIP through-hole package dimensions. Confirm that the application voltage requirements fall within the specified 3V-5.5V logic and 10V-44V load ranges before finalizing procurement.

Selection Notes

Select this component when driving two-phase unipolar stepper motors requiring integrated control and power stages. It is suitable for applications where a complex microprocessor is unavailable or overburdened, as it accepts simple clock inputs. Choose this part if external step resolution selection and PWM current control via reference voltage and sensing resistor are required.

Part Context

The SLA7075MPR belongs to the SLA707xM series, which combines CMOS logic with high-voltage power MOSFETs. This series is designed to simplify stepper motor control by eliminating the need for external sequencers or high-frequency control lines. The device is manufactured by Sanken Electric USA Inc., a provider of power electronics solutions for various industrial and consumer applications.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include SLA7076MPR and SLA7076MR from Sanken Electric USA Inc. Verify compatibility regarding step resolution support and thermal characteristics before substitution.

FAQ

What step resolutions are supported by the SLA7075MPR?

The SLA7075MPR supports full, half, quarter, eighth, and sixteenth-step operation, which are externally selectable.

Does the SLA7075MPR require special power-up sequencing?

No, the device does not require special power-up sequencing for operation.