NIS5135MN1TXG

Current Regulation/Management Overview

The NIS5135MN1TXG is a 5V electronic fuse from onsemi, designed to protect sensitive loads from overcurrent and thermal damage. It integrates a power FET with a typical on-resistance of 68mΩ and supports a maximum voltage of 5VDC. The device features an internal charge pump, undervoltage lockout, and overvoltage clamping. It offers configurable current limiting via an external resistor and adjustable dv/dt control. Thermal protection includes auto-retry functionality. The component operates within a temperature range of -40°C to +150°C and is housed in a DFN-10 package.

Current Regulation/Management Feature Summary

• Integrated power device design eliminates the need for external current shunt resistors, simplifying circuit architecture.
• Internal overvoltage clamping limits output voltage during transients without causing system shutdown.
• Configurable current limit setting allows customization of overload and short-circuit protection levels.
• Built-in thermal protection prevents device damage from overheating conditions.

Current Regulation/Management Applications

• Protection of sensitive load circuits against input voltage spikes
• Overcurrent protection in portable electronic devices
• Power distribution management in industrial systems

Current Regulation/Management Procurement Notes

Verify the specific suffix 'MN1' corresponds to the required auto-retry thermal protection mode and pin configuration before procurement. Confirm that the DFN-10 package dimensions match the target PCB footprint. Ensure the operating voltage range aligns with the system's 5V supply rails. Check for any recent lifecycle status changes such as NRND or obsolescence notices directly from the manufacturer.

Current Regulation/Management Selection Notes

Select this component when a compact solution for 5V bus protection is required without external sensing resistors. Consider the 68mΩ on-resistance for efficiency calculations. Choose based on the need for auto-retry versus latch-off thermal protection. Verify compatibility with the desired current limit setting resistor value. Ensure the thermal performance meets the application's ambient temperature requirements.

Current Regulation/Management Part Context

The NIS5135 series belongs to onsemi's family of integrated electronic fuses. These devices replace traditional discrete protection components by combining power switching and control logic in a single package. The series is designed for applications requiring robust load protection with minimal external component count. Other variants in the series may offer different voltage ratings or protection modes.

Current Regulation/Management Replacement Considerations

NIS5135MN2TXG: Offers similar functionality but may differ in thermal protection behavior or specific electrical characteristics; verify datasheet details for direct substitution compatibility.

Current Regulation/Management FAQ

How is the current limit configured?

The current limit level is set by connecting a resistor between the ILimit pin and the Source pin.

What happens during a thermal fault?

The Enable/Fault pin transitions to a high-impedance state to signal a thermal shutdown condition.

Can the output rise time be adjusted?

Yes, the default dv/dt of 2ms can be increased by adding an external capacitor to the dv/dt pin.