SCP380HMUAJAATBG

Overview

The SCP380HMUAJAATBG is a high-side power distribution switch from onsemi, designed for applications with large capacitive loads and potential short circuits. It integrates a P-channel MOSFET with a maximum on-resistance of 75 mΩ in a uDFN-6 package. The device features adjustable current limiting via an external resistor, allowing thresholds between 500 mA and 2.1 A. It operates within a supply voltage range of 2.5 V to 5.5 V and supports logic control inputs. Key protection mechanisms include reverse voltage detection, overcurrent regulation, and thermal shutdown, with a flag output indicating fault conditions.

Feature Summary

• Integrates a P-channel MOSFET with controlled rise and fall times to minimize current ringing during switching events.
• Provides adjustable current limiting functionality, enabling users to set thresholds externally or utilize fixed internal settings.
• Includes internal reverse voltage detection that disables the switch if output voltage exceeds input voltage.
• Features a logic flag output that signals overcurrent, reverse voltage, or high-temperature fault conditions.

Applications

• Power distribution systems requiring protection against short circuits and overcurrent conditions
• Applications involving large capacitive loads where inrush current management is critical
• Industrial and automotive electronic control units needing reliable high-side switching

Procurement Notes

Verify the specific current limit configuration required for your design, as this variant may have fixed or adjustable settings depending on the exact suffix interpretation. Confirm compatibility with your system's logic voltage levels (2.5 V to 5.5 V) and ensure the uDFN-6 package fits your PCB layout constraints. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing the bill of materials.

Selection Notes

Select this component when a high-side switch with integrated current limiting and reverse polarity protection is needed. It is suitable for designs requiring precise control over switching transients to reduce electromagnetic interference. Consider the thermal performance in your application, as the device dissipates power during current limiting. Ensure the external components for current setting, if applicable, meet the required tolerance and stability standards for your operating environment.

Part Context

This part belongs to the NCP380 family of power distribution switches from onsemi. The family offers various configurations with fixed or adjustable current limits and different packaging options like uDFN-6 and TSOP-5. These devices are engineered for robust performance in harsh environments, providing essential protection features for sensitive downstream electronics in automotive and industrial sectors.

Replacement Considerations

Direct substitutes within the NCP380 series include NCP380HMU15AATBG and NCP380HMU21AATBG, which share similar packages and functionalities but differ in fixed current limit values. Verify that the replacement part's current threshold aligns with your circuit requirements. Other variants in the series may offer different on-resistance or package types, so confirm mechanical and electrical compatibility before substitution.