MIC2981/82YWM

Overview

The MIC2981/82YWM is an eight-channel, high-voltage, high-current source driver array manufactured by Microchip Technology. It operates within a supply voltage range of 5V to 50V and delivers up to 350mA output current per channel. The device is housed in an 18-pin PDIP package designed for through-hole installation. It supports logic-level TTL and CMOS inputs, enabling direct switching of high-power loads. The operational temperature range extends from -40°C to +85°C.

Feature Summary

• Eight independent high-current source channels for driving high-power loads
• High-voltage operation capability up to 50V supply
• Direct interface with standard logic-level TTL and CMOS control signals

Applications

• Switching inductive loads
• High-power load control systems
• Industrial automation drivers

Procurement Notes

Verify the specific suffix (YN vs YWM) against the required package type, as PDIP variants differ from surface-mount options. Confirm that the 18-pin through-hole form factor aligns with the target PCB layout. Ensure the 50V maximum rating meets the application's voltage requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when multiple isolated or common-source outputs are needed for high-voltage applications. It is suitable for designs requiring direct logic interfacing without additional level-shifting circuitry. Consider the thermal performance of the PDIP package under continuous load conditions. Evaluate the 350mA per-channel limit against the total power dissipation capabilities of the system.

Part Context

This part belongs to the MIC2981/82 series of high-voltage source driver arrays. It serves as a bridge between low-power logic controllers and high-power external devices. The series is designed for robust industrial environments where reliable switching of heavy loads is critical. It complements other Microchip driver solutions by offering multi-channel integration in a single package.

Replacement Considerations

Public confirmed substitute part numbers: MIC2981/82YN, MIC2981/82YWM-TR.