IXDN404SI-16 Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDN404SI-16 is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT and MOSFET gates in power management applications. This device operates with a supply voltage range of 4.5V to 35V and features dual independent channels with 4A peak output current capability. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

IXDN404SI-16

IXYSIn Stock: 1255IXDN404SI-16 Datasheet

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MIC4424YWM

Microchip TechnologyIn Stock: 4419MIC4424YWM Datasheet

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MIC4424ZWM

Microchip TechnologyIn Stock: 3403MIC4424ZWM Datasheet

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MIC4424ZWM-TR

Microchip TechnologyIn Stock: 1561MIC4424ZWM-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXDN404SI-16 is determined by the following critical parameters that must align across candidate parts:

Mandatory Compatibility Parameters:

• Driven Configuration: Low-Side (must match)
• Number of Drivers: 2 independent channels (must match)
• Input Type: Non-Inverting (must match)
• Package / Case: 16-SOIC form factor (must match)
• Gate Type: Support for N-Channel and P-Channel MOSFET (minimum requirement)

Functional Parameters Affecting Substitution:

• Voltage - Supply: Original range 4.5V ~ 35V; substitute parts operate at 4.5V ~ 18V (narrower range acceptable if application operates within this window)
• Current - Peak Output: Original 4A source/sink; substitute parts provide 3A source/sink (reduced capability)
• Logic Voltage Thresholds: Original VIL/VIH 0.8V/2.5V; substitute parts 0.8V/2.4V (compatible)
• Rise / Fall Time: Original 16ns/13ns; substitute parts 28ns/32ns (slower switching)
• Operating Temperature: Original -55°C ~ 150°C; substitute parts -40°C ~ 150°C or 0°C ~ 150°C (narrower low-temperature range)

The Microchip Technology MIC4424 series parts (MIC4424YWM, MIC4424ZWM, MIC4424ZWM-TR) meet the mandatory compatibility criteria and share the same functional architecture as the IXDN404SI-16, with documented trade-offs in supply voltage range, output current, and switching speed.

Parameter Comparison

Engineering Selection Recommendations

MIC4424YWM is suitable for applications requiring the widest low-temperature operating range among the Microchip alternatives, extending to -40°C. This variant is packaged in Tube format and is recommended for designs operating in extended temperature environments where the IXDN404SI-16's -55°C minimum is not required.

MIC4424ZWM and MIC4424ZWM-TR both operate from 0°C to 150°C and are functionally identical, differing only in packaging format. MIC4424ZWM is supplied in Tube packaging, while MIC4424ZWM-TR is supplied in Tape & Reel format. Both variants are ROHS3 compliant and carry Active product status, ensuring long-term availability and supply chain stability compared to the obsolete IXDN404SI-16.

Selection between these three Microchip alternatives depends on application temperature requirements and procurement packaging preferences. All three parts are electrically compatible with the IXDN404SI-16 within the specified supply voltage range of 4.5V to 18V, with the understanding that peak output current is reduced from 4A to 3A and switching speed is reduced (rise/fall times increase from 16ns/13ns to 28ns/32ns).

Frequently Asked Questions (FAQ)

Q: Can MIC4424 series parts directly replace IXDN404SI-16 in existing designs?

A: Direct pin-compatible replacement is possible due to identical 16-SOIC packaging and matching pinout. However, functional differences must be evaluated: the MIC4424 series operates at reduced supply voltage (maximum 18V versus 35V), reduced peak output current (3A versus 4A), and slower switching speed (28ns/32ns versus 16ns/13ns rise/fall times). Applications must operate within these reduced specifications.

Q: What is the difference between MIC4424YWM, MIC4424ZWM, and MIC4424ZWM-TR?

A: MIC4424YWM operates from -40°C to 150°C and is supplied in Tube packaging. MIC4424ZWM and MIC4424ZWM-TR both operate from 0°C to 150°C; the difference is packaging format (Tube versus Tape & Reel). Electrical performance is identical across all three variants.

Q: Does the reduced peak output current (3A versus 4A) affect gate drive capability?

A: Output current reduction affects gate charge delivery speed and maximum gate capacitance that can be driven. Applications with gate capacitance below the MIC4424 specification limits will function correctly. High-capacitance gate loads or high-frequency switching applications may experience degraded performance.

Q: Are the MIC4424 parts RoHS compliant?

A: Yes, all three MIC4424 variants (MIC4424YWM, MIC4424ZWM, MIC4424ZWM-TR) are ROHS3 compliant, whereas the IXDN404SI-16 RoHS status is not specified.

Q: What is the moisture sensitivity difference between IXDN404SI-16 and MIC4424 parts?

A: IXDN404SI-16 has MSL 1 (Unlimited shelf life), while MIC4424 parts have MSL 2 (1 Year shelf life). MIC4424 parts require controlled storage conditions and have a one-year maximum shelf life from the date of manufacture.

Q: Can I use MIC4424 parts in applications requiring supply voltages above 18V?

A: No. MIC4424 series maximum supply voltage is 18V. Applications requiring operation above 18V are not compatible with these substitutes and require alternative gate driver solutions.