MC34920EI

Overview

The MC34920EI is a fully integrated bipolar stepper and brushed DC motor driver manufactured by NXP USA Inc. It features an 8-channel half-bridge output configuration using power MOSFET technology. The device supports serial interface control and operates with supply voltages of 3.3V or 5V, while handling load voltages between 21V and 42V. Each output channel provides a current capacity of 1.5A. The component is housed in a 44-PLCC package with dimensions of 16.59x16.59 mm. It is designed for surface mount installation and functions within a junction temperature range of 0°C to 135°C.

Feature Summary

• Fully integrated control and power stage for simplified design
• Supports both bipolar stepper and brushed DC motor types
• Serial interface for efficient command transmission
• High thermal tolerance for robust operation

Applications

• Bipolar stepper motor control systems
• Brushed DC motor drive applications
• General purpose motor controller circuits

Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm availability through authorized distributors as standard production may have ceased. Ensure compatibility with existing serial communication protocols and voltage levels. Check for alternative components if long-term supply stability is required for the product lifecycle.

Selection Notes

Select this IC when a single-chip solution for bipolar stepper or brushed DC motors is needed. The 1.5A per channel rating suits moderate load requirements. The 44-PLCC package requires appropriate PCB footprint planning. Verify that the system architecture supports the serial interface protocol used by the device for proper configuration and control.

Part Context

This part belongs to the NXP motor driver family, specifically designed for integrated motion control. It combines logic control and power driving capabilities to reduce external component count. The MC34920 series targets applications requiring reliable motor management in compact form factors, leveraging NXP's power MOSFET technology for efficiency and durability.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineers should evaluate pin-compatible alternatives or redesign the circuit board to accommodate newer generation motor drivers from NXP or other manufacturers.