NCP380HMU10AATBG

Overview

The NCP380HMU10AATBG is a high-side power distribution switch from onsemi, featuring a single P-channel MOSFET output. It operates within a load voltage range of 2.5 V to 5.5 V and delivers a maximum output current of 2.1 A. The device incorporates a fixed current limit of 1 A and exhibits a maximum on-resistance of 75 mOhms in the uDFN-6 package. Key timing parameters include a maximum rise time of 4 ms and a maximum fall time of 3 ms. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a P-channel MOSFET with fixed current limiting for short-circuit protection
• Features controlled slew rates to minimize current ringing during switching events
• Includes internal reverse voltage detection to protect input-side components
• Provides a flag logic output indicating over-current, reverse voltage, or thermal conditions

Applications

• Power distribution in automotive systems with large capacitive loads
• Protection circuits for applications prone to short-circuit faults
• High-side switching for peripheral devices requiring controlled turn-on/off
• Load management in industrial equipment operating at 5V nominal voltages

Procurement Notes

Verify that the specific part number matches the required fixed current limit configuration, as the NCP380 series includes both adjustable and fixed variants. Confirm package compatibility with the uDFN-6 footprint and ensure thermal management aligns with the specified power dissipation limits. Check RoHS compliance status and moisture sensitivity level requirements for your assembly process before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1 A current limit is sufficient for the target load, eliminating the need for external programming resistors. Choose this model over adjustable variants if design simplicity and reduced bill-of-materials are priorities. Ensure the application voltage stays within the 2.5 V to 5.5 V range and consider the 75 mOhm on-resistance impact on power loss and heat generation under full load conditions.

Part Context

This device belongs to the NCP380 family of high-side power switches designed by onsemi. The family offers various configurations including adjustable current limits and different packages like TSOP-5. The NCP380HMU10AATBG specifically provides a fixed 1 A limit in a compact surface-mount package, distinguishing it from higher-current or programmable counterparts within the same product line.

Replacement Considerations

Direct substitutes within the NCP380 family include NCP380HMU05AATBG (0.5 A fixed) and NCP380HMU15AATBG (1.5 A fixed). Verify that alternative part numbers match the required current threshold and package type. Cross-reference datasheets to confirm pinout compatibility and electrical parameter alignment before swapping components.