LS8297

Overview

The LS8297 is a stepper motor controller designed for general-purpose applications. It generates four phase drive signal outputs to control two-phase bipolar and four-phase unipolar motors. The device integrates a power MOSFET driver stage, simplifying the interface between logic-level control signals and motor windings. This integration supports efficient operation in systems requiring precise motion control without external discrete driver components.

Feature Summary

• Generates four phase drive signal outputs for motor control
• Supports both two-phase bipolar and four-phase unipolar motor configurations
• Integrates a power MOSFET driver stage

Applications

• General-purpose stepper motor control systems
• Two-phase bipolar motor drives
• Four-phase unipolar motor drives

Procurement Notes

Verify the specific suffix (e.g., -TS or -S) against the required package type and operating temperature range. Confirm RoHS compliance status with the supplier. Ensure the source document explicitly lists the LS8297 as the primary part number to avoid confusion with pin-compatible replacements like the LS8397.

Selection Notes

Select this component when a combined controller and driver solution is needed for bipolar or unipolar stepper motors. Consider the integrated MOSFET driver for simplified board layout. Verify compatibility with the target motor's voltage and current requirements through external circuit design if necessary.

Part Context

LSI/CSI specializes in standard and custom integrated circuits, including motor controllers. The LS8297 belongs to their portfolio of general-purpose ICs designed for high-volume and niche industries. The company provides technical support for these standard products alongside custom ASIC development services.

Replacement Considerations

The LS8397 is documented as a low-cost, low-current, pin-compatible replacement for the LS8297. It offers L297 operating modes with added selectable torque ripple compensation features.