MIC4422CM Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MIC4422CM is a low-side gate driver IC manufactured by Microchip Technology, designed for driving IGBT and N-Channel MOSFET gates in power management applications. This non-inverting single-channel driver operates from a 4.5V to 18V supply and delivers 9A peak output current in both source and sink configurations.

The MIC4422CM is currently discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing production, maintenance, and design updates. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure seamless integration into existing circuit designs.

Key Parameters

Parameter	Value
Driven Configuration	Low-Side
Channel Type	Single
Number of Drivers	1
Gate Type	IGBT, N-Channel MOSFET
Voltage - Supply	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.4V
Current - Peak Output (Source, Sink)	9A, 9A
Input Type	Non-Inverting
Rise / Fall Time (Typ)	20ns, 24ns
Operating Temperature	0°C ~ 150°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the MIC4422CM is determined by strict equivalence across the following critical parameters:

Driven Configuration: Must be Low-Side
Channel Type: Must be Single
Gate Type: Must support IGBT and N-Channel MOSFET
Voltage - Supply: Must match 4.5V ~ 18V range
Logic Voltage Thresholds: Must match VIL = 0.8V, VIH = 2.4V
Peak Output Current: Must provide 9A source and 9A sink capability
Input Type: Must be Non-Inverting
Package / Case: Must be 8-SOIC form factor
Mounting Type: Must be Surface Mount

The MIC4422ZM meets all substitution criteria, maintaining identical electrical specifications and mechanical compatibility while offering improved product status and compliance certifications.

Parameter Comparison

Parameter	MIC4422CM	MIC4422ZM
Manufacturer	Microchip Technology	Microchip Technology
Driven Configuration	Low-Side	Low-Side
Channel Type	Single	Single
Number of Drivers	1	1
Gate Type	IGBT, N-Channel MOSFET	IGBT, N-Channel MOSFET
Voltage - Supply	4.5V ~ 18V	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.4V	0.8V, 2.4V
Current - Peak Output (Source, Sink)	9A, 9A	9A, 9A
Input Type	Non-Inverting	Non-Inverting
Rise / Fall Time (Typ)	20ns, 24ns	20ns, 24ns
Operating Temperature	0°C ~ 150°C (TJ)	0°C ~ 150°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount
Product Status	Discontinued at DiGi Electronics	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging	Bulk	Tube

Engineering Selection Recommendations

The MIC4422ZM is the direct functional equivalent of the MIC4422CM, providing identical electrical performance and mechanical compatibility. Selection between these parts should be based on the following factors:

Product Status: The MIC4422CM is discontinued, making the MIC4422ZM the only viable long-term sourcing option for new designs and ongoing production requirements.

Compliance & Certifications: The MIC4422ZM carries ROHS3 compliance, meeting current environmental and regulatory standards. The MIC4422CM is RoHS non-compliant, which may present sourcing restrictions in regulated markets.

Packaging Considerations: The MIC4422ZM is supplied in Tube packaging, while the MIC4422CM was supplied in Bulk. Tube packaging is standard for active production parts and facilitates automated assembly processes.

Electrical Equivalence: Both parts share identical supply voltage range (4.5V ~ 18V), logic thresholds (0.8V / 2.4V), output current ratings (9A / 9A), and timing characteristics (20ns / 24ns rise/fall time). Direct substitution requires no circuit modifications.

Frequently Asked Questions (FAQ)

Q: Can the MIC4422ZM directly replace the MIC4422CM without circuit modifications?

A: Yes. The MIC4422ZM is electrically and mechanically identical to the MIC4422CM across all specified parameters. Pin configuration, voltage ratings, current capabilities, and timing characteristics are equivalent. Direct PCB substitution is possible.

Q: What is the difference between the MIC4422CM and MIC4422ZM?

A: The primary differences are product status, compliance certification, and packaging. The MIC4422ZM is an active product with ROHS3 compliance and Tube packaging, while the MIC4422CM is discontinued, RoHS non-compliant, and supplied in Bulk packaging. Electrical specifications are identical.

Q: Why is the MIC4422CM discontinued?

A: The MIC4422CM has been discontinued at DiGi Electronics. The MIC4422ZM represents the current production equivalent from Microchip Technology.

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

A: No. Both parts operate across the same temperature range (0°C ~ 150°C junction temperature) and share identical thermal and reliability characteristics.

Q: What packaging format should I specify for new designs?

A: Specify the MIC4422ZM with Tube packaging for new production designs. This ensures compatibility with modern supply chain practices and automated assembly workflows.

Q: Is the 8-SOIC package footprint identical between both parts?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints and land patterns are identical.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message