MIC4452BN Equivalent & Substitute Parts

Part Overview

The MIC4452BN is a low-side gate driver IC manufactured by Microchip Technology, designed for driving IGBT and N-Channel MOSFET applications. This 8-PDIP through-hole component operates across a 4.5V to 18V supply range with non-inverting input configuration and 12A peak output current capability.

The MIC4452BN is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this gate driver.

Substiute Parts

MIC4452BN

Microchip TechnologyIn Stock: 5383MIC4452BN Datasheet

Current PartRFQ

MIC4452YN

Microchip TechnologyIn Stock: 1332MIC4452YN Datasheet

DirectRFQ

UCC37322P

Texas InstrumentsIn Stock: 10606UCC37322P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC4452BN are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Driven Configuration: Low-Side (required match)
• Channel Type: Single (required match)
• Package / Case: 8-DIP (0.300", 7.62mm) (required match)
• Mounting Type: Through Hole (required match)
• Input Type: Non-Inverting (required match)

Allowable Parameter Ranges for Substitution:

• Voltage - Supply: Must encompass or match the 4.5V ~ 18V range
• Current - Peak Output: Must meet or exceed 12A for both source and sink
• Logic Voltage (VIL, VIH): Must be compatible with standard logic levels
• Rise / Fall Time: Timing characteristics must support the application requirements
• Operating Temperature: Must cover the required operating range

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

MIC4452YN (Microchip Technology)

The MIC4452YN is the direct equivalent to the MIC4452BN, sharing identical electrical specifications and package configuration. This part is manufactured by the same supplier and maintains full parameter compatibility. The MIC4452YN carries Active product status and ROHS3 compliance, addressing regulatory requirements that the obsolete MIC4452BN does not meet. This is the preferred substitute for direct replacement in new designs or production continuity.

UCC37322P (Texas Instruments)

The UCC37322P is a cross-manufacturer substitute offering low-side gate driver functionality in the same 8-DIP package. This part maintains compatibility with the critical parameters: non-inverting input, single-channel low-side configuration, and through-hole mounting. The UCC37322P is Active and ROHS3 compliant. Design consideration is required for the following parameter differences: supply voltage range is 4V ~ 15V (versus 4.5V ~ 18V), peak output current is 9A (versus 12A), and operating temperature range is 0°C ~ 70°C (versus -40°C ~ 85°C). The UCC37322P is suitable for applications where these parameter constraints are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the MIC4452YN directly replace the MIC4452BN without circuit modifications?

A: Yes. The MIC4452YN is electrically and mechanically identical to the MIC4452BN. No circuit modifications are required for direct substitution. Both parts share the same pin configuration, electrical ratings, and functional characteristics.

Q: What are the key differences between the MIC4452YN and UCC37322P?

A: The primary differences are: (1) Supply voltage range—MIC4452YN supports 4.5V ~ 18V while UCC37322P supports 4V ~ 15V; (2) Peak output current—MIC4452YN provides 12A while UCC37322P provides 9A; (3) Operating temperature—MIC4452YN operates from -40°C ~ 85°C while UCC37322P operates from 0°C ~ 70°C. These differences must be evaluated against your application requirements.

Q: Is the UCC37322P suitable for applications requiring the full -40°C ~ 85°C temperature range?

A: No. The UCC37322P operates only from 0°C ~ 70°C. If your application requires operation below 0°C or above 70°C, the UCC37322P is not suitable. The MIC4452YN maintains the full -40°C ~ 85°C range.

Q: Can I use the UCC37322P in a design that requires 12A peak output current?

A: No. The UCC37322P provides 9A peak output current (source and sink), which is below the 12A requirement of the MIC4452BN. If your application requires 12A peak output current, the UCC37322P is not suitable. The MIC4452YN maintains the 12A specification.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the MIC4452YN and UCC37322P are ROHS3 compliant, addressing environmental and regulatory requirements that the obsolete MIC4452BN does not meet.

Q: What is the package compatibility between these parts?

A: All three parts—MIC4452BN, MIC4452YN, and UCC37322P—use the same 8-DIP (0.300", 7.62mm) through-hole package. They are mechanically interchangeable on PCBs designed for this package footprint.

Q: Which substitute should I choose for a new design?

A: For new designs, the MIC4452YN is the recommended choice. It provides identical electrical specifications to the original MIC4452BN while offering Active product status and ROHS3 compliance. The UCC37322P should be selected only when its parameter constraints (lower supply voltage range, reduced output current, or narrower temperature range) are acceptable for your specific application.