MC50XS4200DEKR2

Overview

The MC50XS4200DEKR2 is a dual high-side switch from NXP Semiconductors, designed for automotive applications. It features two independent channels with an on-resistance of 50 milliohms at 25°C. Each channel supports a steady-state current up to 1.65 amperes. The device utilizes SMARTMOS technology and integrates comprehensive diagnostic functions accessible via a 16-bit serial peripheral interface (SPI). Key protections include overcurrent, short-circuit, and overtemperature detection with programmable autoretry capabilities. It also offers accurate temperature and current sensing, open load detection, and individually programmable output voltage slew rates to enhance electromagnetic compatibility performance.

Feature Summary

• Dual-channel high-side switching with integrated SPI control and diagnostics
• SMARTMOS technology providing robust protection against overcurrent, short-circuit, and overtemperature conditions
• Programmable internal or external PWM clock signals for autonomous operation and EMC optimization

Applications

• Truck and bus electrical systems
• Control of incandescent bulbs and solenoids
• DC motor driving in automotive environments

Procurement Notes

Verify the specific ordering suffix DEKR2 to confirm the tape-and-reel packaging configuration and moisture sensitivity level prior to procurement. Ensure the component matches the required automotive grade specifications and functional safety requirements for the target application. Cross-reference the datasheet revision to confirm all diagnostic features are active as documented.

Selection Notes

Select this component when a dual-channel solution with low on-resistance and advanced diagnostic capabilities is required for automotive loads. Consider the 1.65A per channel limit and the need for SPI-based control integration. Evaluate the programmable slew rates for EMC compliance and the dynamic overcurrent threshold profile for handling inrush currents without false shutdowns.

Part Context

This part belongs to the MC50XS4200 family of dual high-side switches. It shares core functionality with variants like MC50XS4200BEK but differs in packaging and reel specifications. The family is characterized by its integration of control logic, protective functions, and diagnostic interfaces within a single SMARTMOS device, targeting demanding automotive lighting and actuator applications.

Replacement Considerations

MC50XS4200BEK is a related variant within the same product family. Verify pinout compatibility and packaging differences before substitution. Ensure that any replacement part meets the same automotive qualification standards and functional safety levels required for the original design.