MC33186VW1R2

Overview

The MC33186VW1R2 is an automotive H-bridge driver manufactured by Freescale Semiconductor. It operates with a supply voltage range of 5V to 28V and includes overvoltage protection against transients up to 40V at Vbat. The device features an RDSon of 150mΩ for each output transistor at 25°C, supporting a continuous DC load current of 5A when the case temperature is below 100°C. Output current limitation is typically set at 6.5A ±20%, with short-circuit shutdown activating for currents exceeding 8A. Logic inputs are compatible with TTL/CMOS standards, allowing operation frequencies up to 20 kHz. Additional protections include overtemperature, undervoltage disable, and a diagnostic output.

Feature Summary

• Integrated high-side and low-side drivers for dual brushed DC motor control
• Built-in thermal shutdown and short-circuit protection mechanisms
• Diagnostic output capability for fault detection and system monitoring
• TTL/CMOS compatible logic inputs for flexible interface integration

Applications

• Automotive window lift systems
• Seat adjustment actuators
• HVAC blower motor control
• Power mirror positioning

Procurement Notes

Verify the specific suffix 'R2' against official NXP/Freescale documentation to confirm reel packaging status and any minor parameter variations compared to the standard tape-and-reel version. Ensure compatibility with automotive qualification standards required for your specific application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring robust H-bridge driving in automotive environments with supply voltages up to 28V. Consider the 5A continuous current rating and integrated protection features for direct motor drive needs without external power switches. Verify that the HSOP-20 package fits the thermal and spatial constraints of the design.

Part Context

This part belongs to the MC33186 family of automotive H-bridge drivers designed for controlling brushed DC motors. It replaces older discrete solutions by integrating power switches, drivers, and protection circuits into a single package. The device is widely used in automotive body electronics where reliability under harsh electrical conditions is critical.

Replacement Considerations

Check for MC33186DH1 or MC33186HVW2 as potential functional equivalents within the same family. Verify pinout compatibility and ensure that any substitute meets the same automotive grade specifications and thermal performance requirements.

FAQ

What is the maximum transient voltage the MC33186VW1R2 can withstand?

The device provides overvoltage protection against transients up to 40V at the Vbat terminal.

How does the device handle short-circuit conditions?

Short-circuit shutdown is activated for output currents exceeding 8A, protecting the internal transistors from damage.