MIC4426YN Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MIC4426YN 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 1.5A peak output current capability. The device is currently in active product status with 1637 units in stock.

Equivalent and substitute parts are necessary when the primary MIC4426YN is unavailable, when design requirements demand extended temperature ranges, when higher output current capability is required, or when alternative manufacturers' components meet identical electrical and mechanical specifications.

Substiute Parts

MIC4426YN

Microchip TechnologyIn Stock: 1696MIC4426YN Datasheet

Current PartRFQ

TC426CPA

Microchip TechnologyIn Stock: 4823TC426CPA Datasheet

MFR RecommendedRFQ

TC426EPA

Microchip TechnologyIn Stock: 1388TC426EPA Datasheet

MFR RecommendedRFQ

TC4426CPA

Microchip TechnologyIn Stock: 18679TC4426CPA Datasheet

MFR RecommendedRFQ

TC4426EPA

Microchip TechnologyIn Stock: 1336TC4426EPA Datasheet

MFR RecommendedRFQ

ICL7667CPAZ

Renesas Electronics CorporationIn Stock: 1229ICL7667CPAZ Datasheet

MFR RecommendedRFQ

IR4426PBF

International RectifierIn Stock: 28754IR4426PBF Datasheet

MFR RecommendedRFQ

MAX4426CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 5222MAX4426CPA+ Datasheet

MFR RecommendedRFQ

MAX4426EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 7356MAX4426EPA+ Datasheet

MFR RecommendedRFQ

TSC426CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1123TSC426CPA+ Datasheet

MFR RecommendedRFQ

UCC27323P

Texas InstrumentsIn Stock: 8294UCC27323P Datasheet

MFR RecommendedRFQ

UCC37323P

Texas InstrumentsIn Stock: 1364UCC37323P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC4426YN is determined by the following critical parameters:

Mandatory Matching Parameters:

• Driven Configuration: Low-Side
• Number of Drivers: 2
• Input Type: Inverting
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole

Allowable Parameter Variations:

• Gate Type: N-Channel MOSFET, P-Channel MOSFET, or IGBT (functional compatibility)
• Voltage - Supply: Must encompass or match the 4.5V ~ 18V range
• Logic Voltage - VIL, VIH: Minor variations acceptable within standard logic levels
• Current - Peak Output: Equal or greater than 1.5A source and sink capability
• Rise / Fall Time: Equal or faster than 20ns/29ns specification
• Operating Temperature: Extended ranges acceptable; minimum must support -40°C to 150°C or equivalent industrial range
• RoHS Status: ROHS3 Compliant required

The substitute parts listed below meet these criteria and are electrically and mechanically compatible with the MIC4426YN in standard low-side gate driver applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Operating Temperature Range):

The IR4426PBF and UCC27323P are direct substitutes for applications requiring the full -40°C to 150°C operating temperature range of the MIC4426YN. Both devices maintain ROHS3 compliance and support the required supply voltage envelope. The IR4426PBF provides higher output current capability (2.3A source, 3.3A sink) and faster switching times, making it suitable for high-frequency switching applications. The UCC27323P offers the highest output current (4A source and sink) with extended temperature range to -55°C, though it is marked as Last Time Buy status.

Microchip Technology Alternatives (Same Manufacturer):

The TC4426EPA and TC4426CPA variants from Microchip Technology provide faster switching performance (19ns rise/fall time) compared to the MIC4426YN. The TC4426EPA supports -40°C to 85°C operation, providing extended low-temperature capability. The TC426EPA offers -40°C to 85°C range with standard 30ns switching times. These parts maintain identical supply voltage and output current specifications.

Maxim Integrated Alternatives:

The MAX4426EPA+ provides matching electrical specifications with -40°C to 85°C operating range and identical 20ns switching times. The MAX4426CPA+ operates over 0°C to 70°C. Both maintain ROHS3 compliance and are suitable for standard industrial applications.

Limited Temperature Range Substitutes:

The TC426CPA, TC4426CPA, MAX4426CPA+, TSC426CPA+, and ICL7667CPAZ are suitable only for applications with 0°C to 70°C operating requirements. These parts are not appropriate for extended temperature applications requiring the full -40°C to 150°C range of the MIC4426YN.

Compliance Verification:

All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory requirements of the MIC4426YN. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts except UCC27323P, which is Not Applicable.

Frequently Asked Questions (FAQ)

Q: Can I use TC426CPA as a direct replacement for MIC4426YN in all applications?

A: TC426CPA is electrically compatible but operates only over 0°C to 70°C. Use it only if your application does not require the extended -40°C to 150°C temperature range of the MIC4426YN. For extended temperature applications, select TC426EPA, TC4426EPA, MAX4426EPA+, IR4426PBF, or UCC27323P.

Q: What is the difference between TC426EPA and TC4426EPA?

A: Both are Microchip Technology low-side gate drivers with identical supply voltage (4.5V ~ 18V) and output current (1.5A / 1.5A). The TC4426EPA has faster switching times (19ns rise/fall) compared to TC426EPA (30ns rise/fall). Both support -40°C to 85°C operation. Select TC4426EPA for applications requiring faster switching performance.

Q: Why does UCC27323P show Last Time Buy status?

A: Last Time Buy status indicates Texas Instruments has discontinued this part. While 8188 units are currently in stock, future availability is not guaranteed. For new designs, consider IR4426PBF or MAX4426EPA+ as long-term alternatives with equivalent or superior specifications.

Q: Is IR4426PBF suitable for my application if I only need 1.5A output current?

A: Yes. IR4426PBF provides 2.3A source and 3.3A sink capability, which exceeds the 1.5A requirement of MIC4426YN. The higher current rating does not prevent its use in lower-current applications. IR4426PBF also offers faster switching times (15ns/10ns) and maintains the full -40°C to 150°C temperature range.

Q: Can I substitute ICL7667CPAZ for MIC4426YN?

A: ICL7667CPAZ is compatible only for 0°C to 70°C applications. It operates over a narrower supply voltage range (4.5V ~ 15V versus 4.5V ~ 18V) and does not specify peak output current. Use it only if your application meets these constraints.

Q: What is the advantage of MAX4426EPA+ over MIC4426YN?

A: MAX4426EPA+ provides identical electrical specifications with -40°C to 85°C operating range, extending low-temperature capability compared to the standard 0°C to 70°C variants. It maintains 20ns switching times and 1.5A output current. Select it when extended low-temperature operation is required but full -40°C to 150°C range is not necessary.

Q: Are all substitute parts available in 8-DIP through-hole packaging?

A: Yes. All substitute parts listed are packaged in 8-DIP (0.300", 7.62mm) through-hole format, matching the MIC4426YN package specification. No PCB layout modifications are required for direct substitution.

Q: Which substitute offers the best performance for high-frequency switching applications?

A: IR4426PBF provides the fastest switching performance with 15ns rise time and 10ns fall time, combined with the highest output current capability (2.3A source, 3.3A sink). It also maintains the full -40°C to 150°C temperature range of the MIC4426YN.