MIC4422ACN Equivalent & Substitute Parts

Part Overview

The MIC4422ACN is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-channel MOSFETs in power management applications. This device operates as a non-inverting single-channel gate driver with a supply voltage range of 4.5V to 18V and peak output current capability of 9A source and sink.

The MIC4422ACN is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where original inventory becomes depleted or unavailable.

Substiute Parts

MIC4422ACN

Microchip TechnologyIn Stock: 4307MIC4422ACN Datasheet

Current PartRFQ

MIC4422AZN

Microchip TechnologyIn Stock: 2132MIC4422AZN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC4422ACN is determined by strict equivalence across the following critical parameters:

• Driven configuration: Low-side operation
• Channel configuration: Single channel
• Gate type: N-channel MOSFET driver
• Supply voltage range: 4.5V ~ 18V
• Logic voltage thresholds: VIL 0.8V, VIH 3V
• Peak output current: 9A source and sink
• Input logic: Non-inverting
• Switching characteristics: Rise/fall times 20ns/24ns
• Operating temperature range: 0°C ~ 150°C
• Package type: 8-DIP through-hole
• Base product number: MIC4422

The MIC4422AZN meets all electrical and mechanical substitution criteria for the MIC4422ACN. Both devices share identical functional specifications, pin configuration, and performance characteristics. The primary differences are packaging format (tube vs. standard) and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MIC4422AZN is a direct functional equivalent to the MIC4422ACN. All electrical parameters, switching characteristics, and mechanical specifications are identical. Selection between these parts should be based on the following factors:

Product Status: The MIC4422ACN is obsolete, while the MIC4422AZN is active. For new designs and long-term production, the MIC4422AZN is the appropriate choice to ensure supply chain continuity.

Compliance Requirements: The MIC4422AZN meets ROHS3 compliance standards, whereas the MIC4422ACN is RoHS non-compliant. Applications subject to RoHS regulations must use the MIC4422AZN.

Moisture Sensitivity: The MIC4422AZN has MSL 3 (168 hours), compared to MSL 1 (unlimited) for the MIC4422ACN. This affects storage and handling requirements but does not impact electrical performance or functionality.

Packaging: Both parts are supplied in 8-DIP through-hole packages with identical pin configurations and mechanical dimensions, ensuring direct board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MIC4422AZN directly replace the MIC4422ACN in existing designs?

A: Yes. The MIC4422AZN is electrically and mechanically equivalent to the MIC4422ACN. All functional parameters, pin assignments, and performance characteristics are identical. Direct substitution is possible without circuit modification.

Q: What is the difference between the MIC4422ACN and MIC4422AZN?

A: The primary differences are product status, compliance certifications, and packaging format. The MIC4422ACN is obsolete and RoHS non-compliant, while the MIC4422AZN is active and ROHS3 compliant. Both devices have identical electrical specifications and 8-DIP package dimensions.

Q: Are there any compatibility issues when switching from MIC4422ACN to MIC4422AZN?

A: No compatibility issues exist. Both parts share the same pin configuration, supply voltage range (4.5V ~ 18V), output current capability (9A), and operating temperature range (0°C ~ 150°C). Board-level substitution requires no design changes.

Q: Does the moisture sensitivity difference affect performance?

A: Moisture sensitivity level (MSL) affects component storage and handling procedures, not electrical performance. The MIC4422AZN (MSL 3, 168 hours) requires more controlled storage conditions than the MIC4422ACN (MSL 1, unlimited). Once soldered and operating, both parts perform identically.

Q: Which part should be specified for new production?

A: The MIC4422AZN should be specified for new designs and production. The MIC4422ACN is obsolete and may become unavailable. The MIC4422AZN offers active product status, improved compliance certifications, and ensures long-term supply chain availability.

Q: Are the 8-DIP packages physically identical?

A: Yes. Both the MIC4422ACN and MIC4422AZN use the same 8-DIP package with 0.300" (7.62mm) spacing. Pin assignments and mechanical dimensions are identical, enabling direct board-level substitution.