MCZ33999EK

Overview

The MCZ33999EK is a 16-channel low-side power switch IC from NXP Semiconductors, utilizing SMARTMOS technology for resistive and inductive load control. It operates within a supply voltage range of 5 V to 27 V and features an SOIC-EP-54 package. The device provides a maximum output current of 350 mA per channel with an on-resistance of 550 mOhms. Current limiting ranges from 900 mA to 2.5 A, while typical switching times are 10 us. It supports a wide operating temperature range from -40 C to +125 C.

Feature Summary

• Integrates Serial Peripheral Interface (SPI) for comprehensive input control and diagnostic readout capabilities.
• Includes eight dedicated parallel inputs enabling direct Pulse Width Modulation (PWM) control for specific outputs.
• Employs SMARTMOS technology to achieve low on-resistance and reduced power dissipation across all channels.

Applications

• Inductive load switching
• Incandescent lamp driving
• LED load management

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the datasheet revision matches the production batch. Check for moisture sensitivity labeling as indicated in specifications. Ensure proper ESD handling during storage and assembly. Validate that the SOIC-EP-54 footprint aligns with PCB design requirements before procurement.

Selection Notes

Select this component when 16 independent low-side switches are required with mixed SPI and PWM control interfaces. It is suitable for automotive or industrial environments demanding operation up to 27 V. Consider thermal performance given the 1.7 W power dissipation rating. Evaluate if the 350 mA per-channel limit meets load requirements compared to higher-current alternatives.

Part Context

This device belongs to the MC33999 series of low-side switches designed for robust load control. It complements other NXP automotive integrated circuits by providing reliable switching for various load types. The series emphasizes diagnostic feedback and protection against over-current and over-temperature conditions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative components from different manufacturers.

FAQ

How does the MCZ33999EK handle load diagnostics?

The device uses its Serial Peripheral Interface (SPI) to provide diagnostic readout capabilities, allowing monitoring of the switch status and potential fault conditions.

What is the maximum operating voltage for this IC?

The MCZ33999EK supports a maximum operating supply voltage of 27 V.