NIS5420MT8TXG

Current Regulation/Management Overview

The onsemi NIS5420MT8TXG is an electronic fuse (eFuse) regulator belonging to the SENSEFET series. It operates within an input voltage range of 8V to 18V and provides a regulated output current of 4A. The device features a low on-resistance of 44 mΩ and includes an ISENSE pin for current monitoring. Packaged in a compact 10-WDFN (3x3 mm) surface-mount format with a height of 0.8mm, it supports junction temperatures up to 150°C and ambient operating temperatures from -40°C to 125°C.

Current Regulation/Management Feature Summary

• Integrated electronic fuse functionality providing overcurrent protection and load switching capabilities
• Includes an ISENSE pin enabling precise external current monitoring and control
• Low on-resistance design minimizes power dissipation during normal operation

Current Regulation/Management Applications

• Overcurrent protection for 12V automotive bus systems
• Load switching in industrial equipment power distribution
• Current regulation for peripheral devices in embedded systems

Current Regulation/Management Procurement Notes

Verify the specific suffix MT8 against official onsemi documentation to confirm the 4A output rating and 44 mΩ resistance characteristics. Ensure the procurement channel sources genuine components matching the 10-WDFN package specification. Cross-reference the part number with the manufacturer's latest datasheet to validate electrical parameters before integration into designs.

Current Regulation/Management Selection Notes

Select this component when a 4A current limit is required for 12V applications. The inclusion of the ISENSE pin makes it suitable for designs needing active current monitoring. Compare its 44 mΩ on-resistance against alternatives if thermal management is critical. Ensure the 10-WDFN footprint aligns with the PCB layout constraints.

Current Regulation/Management Part Context

This part belongs to the NIS5420 family of electronic fuses from onsemi. Other variants in the series, such as NIS5420MT2TXG and NIS5420MT3TXG, offer different current ratings like 10A or 4.6A while sharing similar packaging and input voltage ranges. The family utilizes SENSEFET technology for integrated protection and regulation.

Current Regulation/Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs before considering alternative eFuse regulators.