LB1848MC-BH

Overview

The LB1848MC-BH is a bipolar stepper motor driver IC from onsemi, designed for precise motion control applications. It features dual full-bridge outputs capable of driving two-phase stepper motors with a maximum collector current of 0.8A per channel. The device operates within a supply voltage range of 2.5V to 7.5V and supports logic levels compatible with standard CMOS or TTL inputs. Packaged in a compact 10-pin SOIC format measuring 4.9mm x 3.9mm x 1.5mm, it functions reliably across an operating temperature range of -20°C to +75°C.

Feature Summary

• Dual full-bridge output configuration enables independent control of two-phase stepper motors
• Integrated protection mechanisms safeguard against thermal overload and excessive current conditions
• Compatible with standard digital logic interfaces for straightforward system integration

Applications

• Precision positioning systems in industrial automation equipment
• Motion control modules for office automation devices such as printers and scanners
• Actuator drive circuits in security and access control hardware

Procurement Notes

Verify the specific suffix designation to ensure compliance with environmental standards and material composition requirements. Confirm that the package dimensions and pinout match the target PCB layout constraints. Cross-reference the datasheet electrical characteristics against the intended operating voltage and load conditions to guarantee reliable performance under all expected operational scenarios.

Selection Notes

Evaluate the peak current demands of the connected stepper motor to ensure they remain within the 0.8A limit. Consider the ambient operating environment to verify suitability within the specified temperature range. Assess the available board space against the SOIC package footprint to confirm mechanical compatibility with the final assembly design.

Part Context

This component belongs to onsemi's portfolio of intelligent power and sensing technologies, specifically within the motor control segment. It represents a specialized solution for managing bipolar stepper motors, complementing broader offerings in industrial automation and embedded motion control systems provided by the manufacturer.

Replacement Considerations

Consult official cross-reference documentation to identify verified substitute part numbers. Ensure any alternative component maintains identical pinout configurations and electrical specifications to preserve system functionality without requiring redesign.

FAQ

What type of motor output configuration does this IC provide?

The LB1848MC-BH provides a dual full-bridge output configuration, allowing it to drive two-phase bipolar stepper motors.

Is this device suitable for high-voltage automotive applications?

No, the maximum operating supply voltage is limited to 7.5V, which restricts its use to low-voltage consumer and industrial electronics rather than automotive environments.