MIC2981/82BWM-TR

Overview

The MIC2981/82BWM-TR is an eight-channel high-voltage, high-current source driver array manufactured by Microchip Technology. It operates with a load voltage range of 5V to 50V and provides a maximum output current of 500mA per channel. The device features inputs compatible with 5V logic levels, including TTL and CMOS standards. Packaged in an 18-pin SOIC (W) format, it supports surface-mount installation. The component functions as a general-purpose driver with On/Off interface control and bipolar output configuration, suitable for industrial applications within a temperature range of -40°C to 85°C.

Feature Summary

• Eight-channel high-side switching capability for managing multiple loads simultaneously
• High-voltage operation supporting load voltages up to 50V
• Logic-level input compatibility with standard 5V TTL and CMOS signals
• High-current sourcing performance delivering up to 500mA per channel

Applications

• Switching high-power resistive or inductive loads from low-voltage logic controllers
• Industrial automation systems requiring isolated high-side drive signals
• Automotive lighting and accessory control modules
• General-purpose power distribution arrays in embedded systems

Procurement Notes

Verify the specific suffix 'BWM-TR' to confirm the tape-and-reel packaging variant and industrial temperature grade. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target circuit design. Cross-reference the manufacturer's latest datasheet for any recent product change notifications or pinout revisions before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require driving multiple high-voltage loads directly from microcontroller or FPGA outputs without external level shifting. The integrated high-current capability eliminates the need for additional buffer transistors. Consider the thermal dissipation requirements of the SOIC package when determining PCB layout constraints for high-density load switching applications.

Part Context

This part belongs to the MIC2981/82 family of high-voltage source drivers. It serves as a bridge between low-voltage digital logic and higher-voltage power stages. The series is designed for robustness in noisy environments, offering reliable switching performance for critical load management tasks in industrial and automotive sectors where voltage isolation and current handling are paramount.

Replacement Considerations

Direct substitutes include other parts within the MIC2981/82 family, such as the MIC2981/82YWM or MIC2981/82YN, depending on the required package type (SOIC vs. PDIP). Verify pin compatibility and electrical ratings before swapping packages. No alternative manufacturers offer functionally identical single-source replacements for this specific proprietary architecture.