NX20P5090UKAZ

Overview

The NX20P5090UKAZ is a high-voltage USB PD power switch from NXP USA Inc., designed for advanced 5A unidirectional power switching applications. It operates within an input voltage range of 2.5V to 20V, featuring a low on-resistance of 30mΩ typical. The device integrates comprehensive protection circuits including under-voltage lockout, over-voltage lockout with a default 23V threshold adjustable via external resistance, reverse current protection, and over-temperature protection. It supports dual power inputs when paralleled and includes built-in slew rate control to limit inrush current during startup.

Feature Summary

• Integrates two-stage reverse current protection and automatic terminal isolation upon fault conditions
• Features 29V tolerance on both VBUS and VINT pins for robust operation in USB PD environments
• Includes built-in slew rate control to manage inrush current and ensure stable system startup
• Provides adjustable over-voltage protection thresholds via external resistors connected to the OVLO pin

Applications

• USB Power Delivery (PD) power domain isolation
• High-efficiency power adapters and chargers supporting up to 100W
• Smartphone charging circuits requiring dual power input support
• Systems requiring enhanced reliability and VBUS protection

Procurement Notes

Verify the specific suffix UKAZ corresponds to the WLCSP package variant with 15 bumps. Confirm that the ordering information matches the required temperature range of -40°C to +85°C. Ensure compatibility with the 1.6x2.6mm footprint dimensions. Check for long-term supply availability commitments if applicable to automotive or medical sectors. Validate pin configuration against the official datasheet before PCB layout finalization.

Selection Notes

Select this component for applications requiring high-voltage tolerance and precise current limiting in USB PD systems. Consider its ability to handle 5A continuous current and its adjustable OVP threshold for flexible design integration. Evaluate the need for parallel operation capabilities if dual input redundancy is required. Assess the suitability of the WLCSP package for space-constrained designs. Verify interface compatibility with low-voltage controllers using the active-low enable pin.

Part Context

The NX20P5090UKAZ belongs to NXP's portfolio of high-voltage USB PD power switches, complementing devices like the NX5P3090UK and NX5P3290UK. It is part of the End-to-End Secure USB Type-C Solution strategy, focusing on VBUS protection and efficient power delivery. This series supports modern charging standards up to 100W, offering superior protection features compared to traditional USB battery chargers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult NXP directly for cross-reference recommendations or equivalent product lines within the NX20P and NX5P families.