MIC4423YWM Equivalent & Substitute Parts

Part Overview

The MIC4423YWM is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This inverting gate driver operates across a 4.5V to 18V supply voltage range with dual independent channels and peak output current capability of 3A source and 3A sink. The device is currently in active production status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance, package compatibility, and functional characteristics align with the original specification, enabling seamless integration in existing designs or when primary inventory is unavailable.

Substiute Parts

MIC4423YWM

Microchip TechnologyIn Stock: 7769MIC4423YWM Datasheet

Current PartRFQ

TC4423COE

Microchip TechnologyIn Stock: 3408TC4423COE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC4423YWM are qualified based on strict alignment of the following critical parameters:

• Driven Configuration: Low-Side operation
• Number of Drivers: 2 independent channels
• Gate Type: N-Channel and P-Channel MOSFET compatibility
• Voltage - Supply: 4.5V ~ 18V range
• Logic Voltage Thresholds: VIL 0.8V, VIH 2.4V
• Current - Peak Output: 3A source and 3A sink capability
• Input Type: Inverting logic
• Package / Case: 16-SOIC form factor
• Mounting Type: Surface Mount

The TC4423COE meets all substitution criteria with identical electrical specifications for supply voltage, logic thresholds, output current, package type, and mounting configuration. Variations in rise/fall time (23ns/25ns vs. 28ns/32ns), operating temperature range (0°C ~ 150°C vs. -40°C ~ 150°C), and moisture sensitivity level (MSL 1 vs. MSL 2) do not disqualify substitution when application requirements fall within the TC4423COE operating envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the MIC4423YWM and TC4423COE are active production devices from Microchip Technology with full RoHS3 compliance and REACH unaffected status. The TC4423COE offers faster switching performance with reduced rise and fall times (23ns/25ns compared to 28ns/32ns), which may provide marginal benefits in high-frequency switching applications. The TC4423COE also features improved moisture sensitivity classification (MSL 1 with unlimited shelf life versus MSL 2 with 1-year shelf life), reducing handling and storage constraints.

Selection between these parts should be based on application-specific requirements: the MIC4423YWM supports extended low-temperature operation down to -40°C, while the TC4423COE operates from 0°C minimum. For applications requiring the full -40°C to 150°C temperature range, the MIC4423YWM is the appropriate choice. For standard industrial and commercial temperature ranges (0°C to 150°C), the TC4423COE provides equivalent functionality with performance advantages.

Frequently Asked Questions (FAQ)

Q: Can TC4423COE be used as a direct replacement for MIC4423YWM?

A: Yes, the TC4423COE is a direct functional substitute when application operating temperature requirements fall within 0°C to 150°C. Both devices share identical supply voltage range (4.5V ~ 18V), logic thresholds (0.8V/2.4V), output current capability (3A/3A), inverting input configuration, and 16-SOIC package. No circuit modifications are required for substitution within the specified temperature envelope.

Q: What is the key difference in switching performance between these parts?

A: The TC4423COE exhibits faster switching characteristics with rise/fall times of 23ns/25ns compared to the MIC4423YWM at 28ns/32ns. This represents approximately 18-22% faster switching transitions, which may reduce switching losses in high-frequency applications but does not affect functional compatibility.

Q: Are there temperature-related constraints for substitution?

A: Yes. The MIC4423YWM operates from -40°C to 150°C junction temperature, while the TC4423COE operates from 0°C to 150°C. Applications requiring operation below 0°C must use the MIC4423YWM. For standard commercial and industrial temperature ranges, both parts are equivalent.

Q: How do moisture sensitivity levels affect part selection?

A: The TC4423COE has MSL 1 rating (unlimited shelf life), while the MIC4423YWM has MSL 2 rating (1-year shelf life). MSL 1 provides greater flexibility in storage and handling without requiring specialized moisture control measures. For applications with extended inventory holding periods, the TC4423COE offers logistical advantages.

Q: Are both parts available in the same package configuration?

A: Yes. Both the MIC4423YWM and TC4423COE are supplied in 16-SOIC (0.295", 7.50mm width) surface mount packages. PCB footprints and assembly processes are identical, enabling seamless substitution without layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both devices are RoHS3 compliant and REACH unaffected. Regulatory and environmental compliance requirements are satisfied by either part.