MC08XS6421BEKR2

Overview

The MC08XS6421BEKR2 is a high-side power switch IC from NXP Semiconductors, designed for robust load distribution in automotive and industrial environments. It features four independent N-channel outputs with a 1:1 input-to-output ratio. The device operates within a load voltage range of 7 V to 18 V and requires a supply voltage (Vcc/Vdd) between 4.5 V and 5.5 V. Key electrical specifications include maximum output currents of 5.5 A and 11 A, with typical on-resistances of 8 mOhms and 21 mOhms respectively. Communication is managed via an SPI interface. The component supports fixed current limiting, open-load detection, and over-temperature protection, functioning reliably across a temperature range of -40°C to 125°C.

Feature Summary

• Integrates four high-side switches with N-channel output configuration for versatile load management.
• Provides comprehensive fault protection including fixed current limiting, open-load detection, and thermal shutdown.
• Enables precise digital control and status monitoring through a standard Serial Peripheral Interface (SPI).
• Designed for high-efficiency power distribution with low on-resistance characteristics.

Applications

• Automotive body electronics and lighting systems
• Industrial motor control and actuator drivers
• General-purpose power distribution units

Procurement Notes

Verify the specific suffix 'R2' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance and moisture sensitivity level requirements prior to assembly. Ensure the ordering part number matches the exact pinout and package dimensions of the 32-SOIC EP variant. Cross-reference with official NXP documentation to validate availability status, as lifecycle changes may affect long-term supply.

Selection Notes

Select this component when four isolated high-side channels are required with SPI-based diagnostics. It is suitable for applications needing simultaneous current limiting and open-load sensing. Compare against alternatives if different voltage ranges or lower pin counts are sufficient. Verify that the 32-SOIC EP package fits the thermal and spatial constraints of the target PCB design.

Part Context

This device belongs to the MC08XS6421 series of multi-channel PMICs focused on power distribution. It complements NXP's portfolio of automotive-grade power management solutions. The series is engineered to replace discrete MOSFET arrangements, reducing board space and improving reliability in complex electronic control units.

Replacement Considerations

Check for direct substitutes within the MC08XS6421 family, such as MC08XS6421DEK, ensuring pin compatibility and functional equivalence before substitution.