MCZ33999EKR2

Overview

The MCZ33999EKR2 is a 16-channel low-side power switch IC manufactured by NXP Semiconductors. It operates within a supply voltage range of 5 V to 27 V and delivers an output current capability between 0.9 A and 2.5 A per channel. The device features a maximum on-resistance of 550 mOhms and supports switching times up to 10 us. It utilizes a SOIC-EP-54 package with a power dissipation rating of 1.7 W, functioning across a 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 for resistive and inductive loads.

Applications

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

Procurement Notes

Verify component authenticity through official NXP channels or authorized distributors. Confirm the suffix 'R2' indicates reel packaging. Check end-of-life status as some sources indicate obsolescence. Ensure ESD protection protocols are followed due to moisture sensitivity. Validate package integrity against SOIC-EP-54 specifications before integration.

Selection Notes

Select this component when requiring 16 independent low-side channels with mixed SPI and PWM control interfaces. It suits designs needing high current handling up to 2.5 A with integrated diagnostics. Consider thermal management requirements given the 1.7 W dissipation limit. Ensure the 5 V to 27 V operating range aligns with system power rails. Evaluate the SOIC-EP-54 footprint constraints for PCB layout.

Part Context

Part of the MC33999 series low-side switches designed for automotive and industrial applications. Utilizes SMARTMOS technology for efficient load control. Provides robust protection against overcurrent, overtemperature, and overvoltage conditions. Integrates seamlessly with microcontrollers via standard serial interfaces for complex load management tasks.

Replacement Considerations

MCZ33996EK offers similar 16-channel functionality but lacks parallel PWM inputs, relying solely on SPI control. Verify interface compatibility and pinout alignment when substituting. Assess thermal performance differences between SOIC-EP-54 and alternative packages like WSOIC-32 if considering cross-family replacements.