MIC4423BWM Equivalent & Substitute Parts

Part Overview

The MIC4423BWM is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in 16-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The MIC4423BWM operates across a supply voltage range of 4.5V to 18V with dual independent driver channels and inverting input configuration.

Substiute Parts

MIC4423BWM

Microchip TechnologyIn Stock: 2492MIC4423BWM Datasheet

Current PartRFQ

MIC4423YWM

Microchip TechnologyIn Stock: 7769MIC4423YWM Datasheet

DirectRFQ

TC4423EOE

Microchip TechnologyIn Stock: 2621TC4423EOE Datasheet

DirectRFQ

TC4423EOE713

Microchip TechnologyIn Stock: 914TC4423EOE713 Datasheet

DirectRFQ

TC4423VOE

Microchip TechnologyIn Stock: 987TC4423VOE Datasheet

UpgradeRFQ

TC4423VOE713

Microchip TechnologyIn Stock: 1218TC4423VOE713 Datasheet

UpgradeRFQ

TC4423COE

Microchip TechnologyIn Stock: 3408TC4423COE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MIC4423BWM is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Low-Side
• Channel Type: Independent
• Number of Drivers: 2
• Gate Type: N-Channel, P-Channel MOSFET
• Voltage - Supply: 4.5V ~ 18V
• Logic Voltage - VIL, VIH: 0.8V, 2.4V
• Current - Peak Output (Source, Sink): 3A, 3A
• Input Type: Inverting
• Package / Case: 16-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in rise/fall time performance, operating temperature range, packaging format (Tube vs. Tape & Reel), and compliance certifications are noted in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain electrical and mechanical compatibility with the MIC4423BWM across the critical parameters that define low-side gate driver functionality. Selection should be based on the following factors:

Product Status & Compliance: The MIC4423BWM is obsolete. All listed substitutes are active products with ROHS3 compliance, making them suitable for new designs and production environments requiring current compliance certifications.

Direct Replacement (Identical Timing): MIC4423YWM provides the closest electrical match with identical rise/fall time specifications (28ns, 32ns) and maintains the full operating temperature range (-40°C ~ 150°C). This part is available in Tube packaging with ROHS3 compliance and represents the primary direct substitute.

Performance Enhancement (Faster Switching): TC4423EOE, TC4423EOE713, TC4423VOE, TC4423VOE713, and TC4423COE offer improved rise/fall time performance (23ns, 25ns), enabling faster switching transitions while maintaining all other electrical specifications. These parts are suitable for applications where reduced propagation delay is beneficial.

Operating Temperature Consideration: TC4423COE operates across a narrower temperature range (0°C ~ 150°C) compared to the MIC4423BWM and other substitutes (-40°C ~ 150°C). This part is appropriate for applications not requiring extended low-temperature operation below 0°C.

Packaging Format: Tube packaging is standard for component handling and storage. Tape & Reel (TR) packaging (TC4423EOE713, TC4423VOE713) is specified for high-volume automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MIC4423YWM directly replace MIC4423BWM in existing designs?

A: Yes. MIC4423YWM maintains identical electrical specifications including supply voltage (4.5V ~ 18V), output current (3A source/sink), logic thresholds (0.8V/2.4V), rise/fall time (28ns/32ns), and operating temperature range (-40°C ~ 150°C). The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between TC4423 variants and MIC4423 parts?

A: TC4423 variants (TC4423EOE, TC4423EOE713, TC4423VOE, TC4423VOE713, TC4423COE) offer improved switching performance with faster rise/fall times (23ns/25ns) compared to MIC4423 parts (28ns/32ns). All other electrical parameters remain equivalent. The TC4423 base product number indicates a different design revision while maintaining functional compatibility.

Q: Are packaging differences (Tube vs. Tape & Reel) electrically significant?

A: No. Tube and Tape & Reel packaging formats contain identical die and electrical specifications. Packaging selection is determined by assembly process requirements. Tube packaging is used for manual or lower-volume assembly; Tape & Reel is specified for automated high-volume production lines.

Q: Does TC4423COE's narrower operating temperature range affect compatibility?

A: TC4423COE operates from 0°C to 150°C, compared to -40°C to 150°C for other substitutes. This part is compatible with applications operating within the 0°C to 150°C range. Applications requiring operation below 0°C must use MIC4423YWM, TC4423EOE, TC4423EOE713, TC4423VOE, or TC4423VOE713.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original MIC4423BWM is RoHS non-compliant, making substitution necessary for designs requiring current environmental compliance certifications.

Q: Can faster switching times (TC4423 variants) cause compatibility issues?

A: No. Faster rise/fall times (23ns/25ns vs. 28ns/32ns) represent improved performance characteristics. These parts are electrically compatible with designs specified for the original MIC4423BWM. Faster switching may reduce electromagnetic interference and improve efficiency in gate drive applications.