SLA7078MR Equivalent & Substitute Parts

Part Overview

The SLA7078MR is a unipolar stepper motor driver IC manufactured by Sanken Electric USA Inc., designed for general-purpose motor control applications. It integrates a fully functional control and power stage with low-side output configuration, operating across a 3V to 5.5V supply voltage range with load voltage capability up to 44V. The device is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

SLA7078MR

Sanken Electric USA Inc.In Stock: 1305SLA7078MR Datasheet

Current PartRFQ

SLA7078MPRT

Sanken Electric USA Inc.In Stock: 5548SLA7078MPRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SLA7078MPRT qualifies as a parametric equivalent to the SLA7078MR based on strict alignment across all critical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

Motor Control Characteristics: Both parts implement unipolar stepper motor driver functionality with identical low-side output configuration (4 channels) and parallel interface architecture.

Electrical Performance: Supply voltage range (3V ~ 5.5V), load voltage capability (10V ~ 44V), output current rating (3A), and step resolution options (1, 1/2, 1/4, 1/8, 1/16) are identical across both parts.

Physical and Environmental Specifications: Both devices use 23-ESIP formed leads packaging with through-hole mounting, operate across the same temperature range (-20°C ~ 150°C TJ), and maintain identical RoHS compliance and MSL ratings.

Technology Platform: Both employ Power MOSFET technology with fully integrated control and power stages, ensuring functional compatibility at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

The SLA7078MPRT is the direct parametric equivalent for the obsolete SLA7078MR. Selection of the SLA7078MPRT is supported by complete electrical and mechanical parameter alignment, identical RoHS compliance certification, and active product status ensuring long-term availability and supply chain continuity.

The transition from SLA7078MR to SLA7078MPRT requires no circuit modifications, PCB layout changes, or firmware adjustments. Both devices share identical pinout, package geometry, and electrical operating characteristics within the specified parameter ranges.

For applications currently using the SLA7078MR, direct substitution with the SLA7078MPRT is appropriate. The active status of the SLA7078MPRT provides supply security for new production runs and ongoing system maintenance.

Frequently Asked Questions (FAQ)

Q: Can the SLA7078MPRT be used as a direct replacement for the SLA7078MR?

A: Yes. The SLA7078MPRT is a parametric equivalent with identical electrical specifications, output configuration, package type, and operating characteristics. No circuit redesign is required.

Q: What is the primary difference between these two parts?

A: The SLA7078MR is classified as obsolete, while the SLA7078MPRT maintains active product status. All electrical and mechanical parameters are identical.

Q: Are there any pinout or package differences?

A: No. Both parts use the 23-ESIP formed leads package with 23-ZIP (SLA) supplier device packaging. Pinout and physical dimensions are identical.

Q: Do both parts support the same step resolution options?

A: Yes. Both the SLA7078MR and SLA7078MPRT support step resolutions of 1, 1/2, 1/4, 1/8, and 1/16.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS compliance status and MSL rating of 1 (Unlimited).

Q: What supply voltage range do these parts support?

A: Both parts operate with a supply voltage range of 3V to 5.5V and support load voltages from 10V to 44V.

Q: Is the SLA7078MPRT suitable for new designs?

A: Yes. The active product status of the SLA7078MPRT makes it the appropriate choice for new designs requiring unipolar stepper motor driver functionality with the specified electrical and mechanical characteristics.