MIC2042-2BM

Overview

The MIC2042-2BM is a dual-channel USB power distribution switch manufactured by Microchip Technology. It integrates two independent N-channel switches in an 8-pin SOIC package. The device supports an input voltage range from 0.8V to 5.5V with a typical on-resistance of 40 milliohms. Each channel features adjustable current limiting between 0.5A and 3A, undervoltage lockout at 0.225V, and active-high enable logic. Operating temperatures span from -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing independent control for two separate loads within a single compact package.
• Adjustable current limiting capability allows customization of protection thresholds to match specific load requirements.
• Integrated thermal shutdown and fault status flagging mechanisms ensure robust protection against overcurrent and overheating conditions.

Applications

• USB hub power distribution circuits
• Portable electronic device battery management systems
• Multi-port peripheral power switching

Procurement Notes

Verify the specific suffix 'BM' corresponds to the 8-pin SOIC tube packaging configuration when sourcing. Confirm that the adjustable current limit settings align with the external resistor values required for the target application. Ensure compatibility with the 0.8V to 5.5V input voltage range for the intended system design.

Selection Notes

Select this component for designs requiring dual isolated power paths with programmable protection limits. The 8-pin SOIC package offers a balance of thermal performance and board space efficiency. Consider the 40 milliohm on-resistance for minimizing conduction losses in low-voltage applications.

Part Context

This part belongs to the MIC2042 series of USB power switches designed for general-purpose power distribution. It serves as a protective interface between power sources and downstream loads, offering precise control and monitoring capabilities essential for modern portable electronics and USB-compliant devices.

Replacement Considerations

MIC2042-1YM: Single-channel variant in 8-pin SOIC.

FAQ

What is the maximum input voltage supported by the MIC2042-2BM?

The device supports a maximum input voltage of 5.5V.

How is the current limit configured for each channel?

The current limit is adjustable via an external resistor connected to the ILIM pin, allowing setting between 0.5A and 3A.