MIC4422ACT Equivalent & Substitute Parts

Part Overview

The MIC4422ACT is a low-side gate driver IC manufactured by Microchip Technology, designed for N-channel MOSFET switching applications. This non-inverting TO-220-5 package device operates across a 4.5V to 18V supply range with 9A peak output current capability. The MIC4422ACT is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

MIC4422ACT

Microchip TechnologyIn Stock: 2194MIC4422ACT Datasheet

Current PartRFQ

MIC4422AZT

Microchip TechnologyIn Stock: 1006MIC4422AZT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC4422ACT is determined by strict equivalence across the following critical parameters:

• Driven Configuration: Low-Side operation
• Channel Type: Single channel
• Gate Type: N-Channel MOSFET
• Input Type: Non-Inverting logic
• Voltage - Supply: 4.5V ~ 18V range
• Logic Voltage - VIL, VIH: 0.8V, 3V thresholds
• Current - Peak Output: 9A source and sink capability
• Rise / Fall Time: 20ns rise, 24ns fall (typical)
• Operating Temperature: 0°C ~ 150°C (TJ)
• Package / Case: TO-220-5 form factor
• Mounting Type: Through Hole

The MIC4422AZT meets all substitution criteria as a direct equivalent from Microchip Technology, maintaining identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MIC4422AZT serves as the direct substitute for the obsolete MIC4422ACT. Both parts are manufactured by Microchip Technology and maintain identical electrical and mechanical specifications across all critical parameters.

The MIC4422AZT offers the advantage of Active product status, ensuring continued availability and manufacturer support. Additionally, the MIC4422AZT achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the MIC4422ACT is RoHS non-compliant.

The MIC4422AZT carries a Moisture Sensitivity Level (MSL) of 3 with a 168-hour exposure window, compared to the MIC4422ACT's MSL of 1 (unlimited). This difference reflects standard handling and storage practices for active production components and does not impact functional equivalence in standard operating environments.

Frequently Asked Questions (FAQ)

Q: Can the MIC4422AZT directly replace the MIC4422ACT in existing designs?

A: Yes. The MIC4422AZT is electrically and mechanically equivalent to the MIC4422ACT. All functional parameters, including supply voltage range, output current, logic thresholds, timing characteristics, and package form factor are identical. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference between these parts?

A: The MIC4422ACT is classified as Obsolete, indicating it is no longer manufactured or supported by Microchip Technology. The MIC4422AZT maintains Active status, ensuring ongoing availability, technical support, and compliance with current manufacturing standards.

Q: How does the RoHS compliance difference affect substitution?

A: The MIC4422AZT is ROHS3 compliant, meeting current environmental regulations for new designs and procurement. The MIC4422ACT is RoHS non-compliant. For applications subject to RoHS requirements, the MIC4422AZT is the appropriate selection.

Q: What does the Moisture Sensitivity Level (MSL) difference mean for handling?

A: The MIC4422AZT has an MSL of 3 with a 168-hour exposure window, requiring standard moisture control during storage and handling. The MIC4422ACT has an MSL of 1 (unlimited), indicating no moisture sensitivity restrictions. Both parts function identically in standard operating conditions; MSL differences apply only to component storage and pre-assembly handling protocols.

Q: Are there any pin or footprint differences between these parts?

A: No. Both the MIC4422ACT and MIC4422AZT use the TO-220-5 package with through-hole mounting. Pin configuration and PCB footprint are identical, enabling direct board-level substitution.