MIC2077-2BWM TR

Overview

The MIC2077-2BWM TR is a quad high-side MOSFET power distribution switch optimized for general-purpose applications requiring circuit protection. It operates within an input voltage range of 2.7 V to 5.5 V and provides a maximum output current of 500 mA per channel. The device features an internal current limit and thermal shutdown with 'smart' fault handling that latches the output off until the load is removed or the enable input is toggled. It employs soft-start circuitry to minimize inrush current for highly capacitive loads. The component is housed in a 16-pin SOIC package.

Feature Summary

• Quad high-side MOSFET switches optimized for general-purpose power distribution
• Internal current limiting and thermal shutdown with smart fault mode reduction
• Soft-start circuitry minimizes inrush current for capacitive loads
• Fault status output flag asserted during overcurrent and thermal conditions

Applications

• General-purpose power distribution requiring circuit protection
• USB power switching applications
• Systems utilizing highly capacitive loads

Procurement Notes

This specific part number, MIC2077-2BWM TR, is officially listed as obsolete by Microchip Technology and is no longer manufactured. Procurement should focus on verified replacement components rather than this discontinued item. Verify compatibility with the recommended substitute, such as the MIC2077-2YWM, ensuring all electrical parameters and package dimensions align with the original design requirements before integration.

Selection Notes

Select this component for designs requiring quad-channel high-side switching with integrated protection against overcurrent and thermal faults. The 'smart' thermal shutdown feature distinguishes it from similar devices by reducing consumption during fault modes. Ensure the application voltage remains within the 2.7 V to 5.5 V range and consider the 16-SOIC package constraints. Note that availability is limited due to obsolescence; alternative active parts must be evaluated for direct substitution.

Part Context

The MIC2077 series belongs to a family of quad USB power distribution switches designed by Microchip Technology (formerly Micrel). These ICs integrate N-channel MOSFETs with control logic to provide robust power management. The device is characterized by its ability to protect both the source and the load through internal sensing mechanisms, making it suitable for portable electronics and industrial interfaces where reliable power routing is critical.

Replacement Considerations

Microchip explicitly recommends replacing the MIC2077-2BM variant with the MIC2077-2YWM. Users should verify that the YWM suffix meets all functional and environmental specifications required by the existing design, including temperature ranges and package compatibility.