MIC5891BWM Equivalent & Substitute Parts

Part Overview

The MIC5891BWM is a Power Switch/Driver IC from Microchip Technology designed for high-side bipolar switching applications. This 1:8 latched driver delivers up to 500mA output current across eight independent channels, operating from 4.5V to 15V supply voltage with load voltage support from 5V to 50V. The device is packaged in a 16-SOIC surface mount configuration.

The MIC5891BWM is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this driver architecture.

Substiute Parts

MIC5891BWM

Microchip TechnologyIn Stock: 1680MIC5891BWM Datasheet

Current PartRFQ

MIC5891YWM

Microchip TechnologyIn Stock: 1796MIC5891YWM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC5891BWM is determined by strict equivalence across the following critical parameters:

• Switch Type: Latched Driver
• Number of Outputs: 8 channels
• Ratio - Input:Output: 1:8
• Output Configuration: High Side
• Output Type: Bipolar
• Interface: Strobe, Serial
• Voltage - Load: 5V ~ 50V
• Voltage - Supply (Vcc/Vdd): 4.5V ~ 15V
• Current - Output (Max): 500mA
• Input Type: Non-Inverting
• Operating Temperature: -55°C ~ 125°C (TA)
• Package / Case: 16-SOIC (0.295", 7.50mm Width)

The MIC5891YWM meets all substitution criteria as a direct equivalent from the same manufacturer, maintaining identical electrical specifications and mechanical compatibility while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MIC5891YWM is the direct substitute for the obsolete MIC5891BWM. Both devices share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility.

The MIC5891YWM offers the following advantages:

• Active product status ensures ongoing availability and manufacturer support
• ROHS3 compliance meets current environmental and regulatory requirements
• Identical performance characteristics across all critical operating parameters
• Same 16-SOIC package footprint enables direct PCB compatibility

Selection of the MIC5891YWM eliminates obsolescence risk while maintaining full design compatibility with existing MIC5891BWM implementations.

Frequently Asked Questions (FAQ)

Q: Is the MIC5891YWM a direct pin-for-pin replacement for the MIC5891BWM?

A: Yes. Both devices use the 16-SOIC package with identical pinout, electrical specifications, and functional behavior. No circuit modifications are required for substitution.

Q: What is the difference between the MIC5891BWM and MIC5891YWM?

A: The primary differences are product status and compliance certifications. The MIC5891BWM is obsolete and RoHS non-compliant, while the MIC5891YWM is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Can I use the MIC5891YWM in new designs?

A: Yes. The MIC5891YWM is the recommended choice for new designs due to its active product status and regulatory compliance. It provides identical functionality to the MIC5891BWM with improved supply chain reliability.

Q: Are there any thermal or performance differences between these parts?

A: No. Both devices operate across the same temperature range (-55°C to 125°C) and deliver identical electrical performance, including 500mA maximum output current and 1:8 switching ratio.

Q: What packaging options are available?

A: Both the MIC5891BWM and MIC5891YWM are supplied in 16-SOIC surface mount packages. The MIC5891YWM is available in tube packaging, while the MIC5891BWM packaging type is not specified in the available data.