MAX4427CSA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MAX4427CSA is a low-side gate driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This device operates as a non-inverting driver with independent dual channels in an 8-SOIC surface mount package. The MAX4427CSA is currently classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across driven configuration, channel type, gate type, and electrical performance parameters to ensure functional equivalence in circuit applications.

Substiute Parts

MAX4427CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 13683MAX4427CSA Datasheet

Current PartRFQ

MAX4427CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1626MAX4427CSA+ Datasheet

DirectRFQ

UCC37324D

Texas InstrumentsIn Stock: 2959UCC37324D Datasheet

DirectRFQ

MIC4427YM

Microchip TechnologyIn Stock: 17690MIC4427YM Datasheet

MFR RecommendedRFQ

MIC4427YM-TR

Microchip TechnologyIn Stock: 1921MIC4427YM-TR Datasheet

MFR RecommendedRFQ

UCC27424D

Texas InstrumentsIn Stock: 9270UCC27424D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX4427CSA are selected based on strict electrical and mechanical compatibility criteria. All substitute candidates must match the following core parameters:

• Driven Configuration: Low-Side
• Channel Type: Independent
• Number of Drivers: 2
• Gate Type: N-Channel, P-Channel MOSFET
• Input Type: Non-Inverting
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Electrical parameters that define substitution eligibility include supply voltage range, logic voltage thresholds (VIL, VIH), peak output current capability (source and sink), and rise/fall time specifications. Parts are grouped into three categories based on their relationship to the main part: direct equivalents with identical specifications, manufacturer-recommended alternatives with comparable or enhanced electrical performance, and functionally compatible substitutes with acceptable parameter variations within the application's tolerance.

Parameter Comparison

Engineering Selection Recommendations

MAX4427CSA+ (Direct Equivalent with Compliance Upgrade)

The MAX4427CSA+ is the direct successor to the MAX4427CSA, offering identical electrical specifications and package configuration. The primary distinction is product status and regulatory compliance: MAX4427CSA+ is active and ROHS3 compliant, whereas the original MAX4427CSA is obsolete and RoHS non-compliant. For new designs and production continuity, MAX4427CSA+ is the preferred direct replacement.

MIC4427YM and MIC4427YM-TR (Manufacturer-Recommended Alternatives)

Both MIC4427YM and MIC4427YM-TR, manufactured by Microchip Technology, provide electrical equivalence to the MAX4427CSA with identical supply voltage range (4.5V ~ 18V), logic voltage thresholds (0.8V, 2.4V), and peak output current (1.5A source/sink). These parts are active products with ROHS3 compliance and extended operating temperature ranges (-40°C ~ 150°C). The MIC4427YM-TR variant includes cut tape and Digi-Reel packaging, while MIC4427YM is supplied in tube packaging. Both are suitable for applications requiring RoHS compliance and long-term availability.

UCC37324D and UCC27424D (Enhanced Performance Alternatives)

The UCC37324D and UCC27424D, manufactured by Texas Instruments, offer enhanced peak output current capability (4A source/sink) compared to the MAX4427CSA (1.5A). Both maintain the low-side, independent dual-channel, non-inverting configuration and 8-SOIC package. UCC37324D operates across 4.5V ~ 15V supply range with extended temperature range (-55°C ~ 150°C), while UCC27424D operates across 4V ~ 15V with -40°C ~ 125°C temperature range. Both are ROHS3 compliant. These parts are classified as Last Time Buy, indicating limited future availability. Selection of these alternatives is appropriate for applications requiring higher output current capability within the specified supply voltage constraints.

Frequently Asked Questions (FAQ)

Q: Can MAX4427CSA be directly replaced with MAX4427CSA+?

A: Yes. MAX4427CSA+ is the direct equivalent with identical electrical and mechanical specifications. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required.

Q: What are the key differences between Microchip MIC4427YM alternatives and the original MAX4427CSA?

A: MIC4427YM and MIC4427YM-TR maintain electrical equivalence in supply voltage (4.5V ~ 18V), logic thresholds (0.8V, 2.4V), and output current (1.5A). The primary differences are extended operating temperature range (-40°C ~ 150°C versus 0°C ~ 70°C) and active product status with ROHS3 compliance. Rise/fall time specifications show minor variation (29ns fall time versus 20ns), which remains within typical application tolerances.

Q: Are Texas Instruments UCC37324D and UCC27424D suitable substitutes for the MAX4427CSA?

A: UCC37324D and UCC27424D are functionally compatible substitutes with the same low-side, dual-channel, non-inverting configuration and 8-SOIC package. However, they feature higher peak output current (4A versus 1.5A) and operate within narrower supply voltage ranges (4.5V ~ 15V and 4V ~ 15V respectively). These parts are appropriate for applications requiring enhanced current capability. Both are classified as Last Time Buy, indicating limited future availability.

Q: What packaging options are available for substitute parts?

A: All substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package for direct pin compatibility. Packaging formats vary by part number: MAX4427CSA+ is supplied in tube, MIC4427YM in tube, MIC4427YM-TR in cut tape and Digi-Reel, UCC37324D in tube, and UCC27424D in tube. Selection of packaging format depends on production volume and assembly requirements.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed (MAX4427CSA+, UCC37324D, MIC4427YM, MIC4427YM-TR, UCC27424D) are ROHS3 compliant. The original MAX4427CSA is RoHS non-compliant. For applications requiring regulatory compliance, substitute parts are necessary.

Q: What is the moisture sensitivity level for these gate driver ICs?

A: All parts, including the original MAX4427CSA and all substitutes, have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.