MC33982BPNAR2

Overview

The MC33982BPNAR2 is a high-side power switch manufactured by NXP USA Inc., designed for automotive applications. It features an N-channel output with a load voltage range of 6V to 27V and a supply voltage (Vcc/Vdd) of 4.5V to 5.5V. The device operates within a junction temperature range of -40°C to 150°C and utilizes a 16-PowerQFN (12x12) surface-mount package. Key electrical characteristics include a typical on-resistance of 2 milliohms and SPI interface control. It integrates comprehensive fault protection mechanisms including overtemperature, overvoltage, fixed current limiting, and open-load detection.

Feature Summary

• Integrated controlled slew rate functionality to minimize electromagnetic interference during switching operations
• Built-in watchdog timer for monitoring system operation and detecting erroneous behavior
• Comprehensive diagnostic capabilities including open-load detection and thermal shutdown protection

Applications

• Automotive lighting systems
• High-side load switching in vehicle electronics
• Actuator control interfaces

Procurement Notes

Verify component authenticity through authorized distributors as the base part number indicates end-of-life status. Confirm specific suffix requirements for tape-and-reel packaging versus tray options if available. Ensure compatibility with existing PCB footprints for the 16-PowerQFN package. Review latest datasheet revisions for any pinout or functional updates prior to final design implementation.

Selection Notes

Select this component when high-side switching with precise current control and robust diagnostics is required. The integrated watchdog and controlled slew rate make it suitable for safety-critical automotive environments. Consider the operating temperature range and voltage specifications to ensure alignment with system requirements. Evaluate the trade-off between the low on-resistance and the complexity of SPI-based configuration.

Part Context

The MC33982 belongs to NXP's SMARTMOS family of power switches, which combine MOSFET technology with CMOS control logic. This series is widely used in automotive electronics for driving resistive and inductive loads. The device represents a solution for integrating power switching with advanced diagnostic features in a compact form factor.

Replacement Considerations

Check for direct cross-reference part numbers from NXP or other manufacturers offering equivalent pinouts and electrical characteristics. Verify that any substitute supports the same SPI interface protocol and fault protection features.