LB1848MC-AH

Overview

The onsemi LB1848MC-AH is a dual full-bridge stepper motor driver IC designed for precision motion control applications. It operates within a supply voltage range of 2.5 V to 7.5 V and delivers a maximum collector current of 0.8 A per bridge. The device supports bidirectional motor control and features an integrated logic interface compatible with standard microcontrollers. Operating temperatures range from -20°C to +75°C, ensuring reliable performance in industrial environments. Packaged in a compact SOIC-10 surface-mount format, it integrates necessary protection mechanisms for robust system integration.

Feature Summary

• Dual full-bridge output configuration enables precise bidirectional control of stepper motors
• Integrated logic interface simplifies connection to standard digital control systems
• Compact SOIC-10 surface-mount package facilitates efficient PCB layout and space-constrained designs

Applications

• Industrial automation machinery requiring precise positioning
• Office equipment such as printers and scanners
• Medical devices needing controlled linear or rotary motion

Procurement Notes

Verify the specific suffix variant against the official datasheet to ensure compatibility with required voltage and current specifications. Confirm that the operating temperature range aligns with the target application environment. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing the design.

Selection Notes

Select this component when a low-voltage, single-chip solution for small stepper motors is required. Ensure the load current does not exceed the 0.8 A limit without external heat sinking considerations. Compare against alternative drivers if higher current capacity or different packaging options are necessary for the specific mechanical constraints.

Part Context

This part belongs to onsemi's portfolio of motor control solutions, specifically targeting low-power stepper applications. It complements other discrete drivers and controller ICs by providing an integrated power stage. The series focuses on cost-effective, high-reliability performance for consumer and light industrial electronics where board space is limited.

Replacement Considerations

Consult the official cross-reference list for direct pin-compatible substitutes. Verify that any alternative driver matches the 2.5 V to 7.5 V input range and 0.8 A output capability. Ensure thermal management requirements remain consistent if replacing with a device in a different package type.