MC33289DWR2

Power Management - Specialized Overview

The MC33289DWR2 is a dual high-side switch integrated circuit manufactured by NXP USA Inc., designed for driving inductive loads such as solenoids in automotive and industrial applications. It operates within a supply voltage range of 6 V to 27 V, with a maximum breakdown voltage exceeding 40 V. The device features two independent channels with a typical on-resistance of 40 mΩ at 25°C and a maximum of 75 mΩ at 150°C. It supports CMOS logic level inputs and includes comprehensive protection mechanisms including overcurrent (4-9 A threshold), overvoltage, undervoltage lockout, and thermal shutdown. The component is housed in a 20-SOIC package and complies with AEC-Q100 automotive standards.

Power Management - Specialized Feature Summary

• Dual independent high-side output channels for precise control of inductive loads like solenoids
• Integrated diagnostic capabilities including open load detection and fault status output
• Robust protection suite featuring short-circuit, overcurrent, overvoltage, undervoltage, and thermal shutdown
• Low standby current consumption suitable for power-sensitive automotive environments

Power Management - Specialized Applications

• Automotive solenoid driver circuits
• Industrial inductive load switching
• High-side power distribution systems

Power Management - Specialized Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm that the DWR2 suffix denotes the tape-and-reel packaging variant rather than a functional change. Ensure compatibility with existing PCB footprints for the 20-SOIC package. Check for RoHS compliance documentation specific to the manufacturing batch. Validate that replacement strategies are established due to end-of-life classification.

Power Management - Specialized Selection Notes

Select this component for applications requiring dual-channel high-side switching with integrated diagnostics. It is suitable for systems operating between 6 V and 27 V where CMOS interface compatibility is required. Consider its thermal performance and protection thresholds when designing for high-current inductive loads. Verify that the 20-SOIC package fits the mechanical constraints of the target assembly.

Power Management - Specialized Part Context

The MC33289 series originates from Motorola and Freescale Semiconductor, now managed by NXP USA Inc. The MC33289DW represents the tube-packaged version, while the MC33289DWR2 specifically indicates the reel-packaged variant. Both share identical electrical characteristics and pinouts. The product line is classified under specialized power management ICs for automotive use.

Power Management - Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require design modifications or alternative component families.

Power Management - Specialized FAQ

What is the maximum breakdown voltage for the MC33289DWR2?

The maximum breakdown voltage exceeds 40 V.

Does the MC33289DWR2 support open load detection?

Yes, the device includes open load detection functionality in the off-state.

What is the operating temperature range?

The operating temperature range is -40°C to +125°C.