MIC2505BN

Overview

The MIC2505BN is a single-channel high-side power distribution switch manufactured by Microchip Technology. It integrates an N-channel MOSFET with a fixed current limit of 2A, designed for load driver applications. The device features a TTL-compatible control input and operates within a supply voltage range of 3V to 28V. Key protection mechanisms include over-temperature shutdown, under-voltage lockout (UVLO), and open-load detection. The component is housed in an 8-pin PDIP package, suitable for through-hole mounting in industrial and automotive systems requiring robust power management.

Feature Summary

• Integrates a single high-side N-channel MOSFET with fixed 2A current limiting
• Provides comprehensive fault protection including over-temperature, UVLO, and open-load detection
• Features TTL-compatible enable input for direct logic interface
• Designed for low on-resistance operation down to 3.0V supply

Applications

• Industrial equipment load switching
• Automotive body electronics distribution
• Peripheral power management in embedded systems
• High-side switching for sensors and actuators

Procurement Notes

Verify the specific suffix 'BN' corresponds to the 8-PDIP package and leaded construction as indicated in distributor listings. Confirm that the part status is obsolete or last-time-buy if sourcing from primary channels, as availability may be limited. Ensure compatibility with through-hole assembly processes. Cross-reference the manufacturer's official documentation for any changes in pinout or electrical characteristics compared to earlier revisions.

Selection Notes

Select this component when a single-channel high-side switch with integrated fault protection is required. The fixed 2A current limit suits moderate load applications without needing external sense resistors. Consider the PDIP package for prototyping or high-reliability through-hole designs. Evaluate the 30mΩ typical on-resistance at 5V for efficiency requirements. Ensure the system voltage does not exceed the 28V maximum rating.

Part Context

The MIC2505 series includes single and dual channel variants such as the MIC2505-1 and MIC2505-2. The MIC2505BN specifically denotes the single-channel version in a PDIP package. This series is part of Microchip's power management portfolio, offering integrated solutions for load protection and switching in environments where reliability and compact design are critical.

Replacement Considerations

Check for MIC2505YMTR as a potential surface-mount alternative from the same family. Verify pin-to-pin compatibility and electrical specifications before substitution. Note that the YMTR variant uses an SOIC-8 package and may require PCB layout adjustments.