IXDI409PI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI409PI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT, N-Channel, and P-Channel MOSFET devices in power management applications. This inverting gate driver operates from a 4.5V to 35V supply and delivers 9A peak output current in both source and sink configurations. The device is packaged in an 8-DIP through-hole format with an operating temperature range of -55°C to 150°C.

The IXDI409PI is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

IXDI409PI

IXYSIn Stock: 1465IXDI409PI Datasheet

Current PartRFQ

IXDI609PI

IXYS Integrated Circuits DivisionIn Stock: 2215IXDI609PI Datasheet

SimilarRFQ

MIC4429YN

Microchip TechnologyIn Stock: 1485MIC4429YN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IXDI409PI are identified based on the following critical parameters that determine functional compatibility:

• Driven Configuration: Must be Low-Side
• Channel Type: Must be Single channel
• Number of Drivers: Must be 1
• Input Type: Must be Inverting
• Package / Case: Must be 8-DIP (0.300", 7.62mm) through-hole
• Gate Type Compatibility: Must support IGBT and/or MOSFET gate driving

Secondary parameters that may vary within acceptable limits include supply voltage range, peak output current, logic voltage thresholds, and rise/fall times. Substitutes must maintain the same package footprint and mounting technology to ensure direct board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

IXDI609PI is the primary substitute for the IXDI409PI. Both devices are manufactured by IXYS and share identical driven configuration, channel type, driver count, input type, and package specifications. The IXDI609PI maintains the same 4.5V to 35V supply voltage range and 9A peak output current. The IXDI609PI is currently in active production status, ensuring long-term availability. The device is RoHS3 compliant, meeting modern environmental and regulatory requirements. Minor differences in rise/fall time (22ns/15ns versus 10ns/10ns) and logic voltage thresholds (3.0V versus 4.6V) are within acceptable operational margins for most gate driver applications.

MIC4429YN is a secondary substitute manufactured by Microchip Technology. This device maintains the same 8-DIP through-hole package, low-side configuration, single-channel inverting topology, and operating temperature maximum of 150°C. The MIC4429YN is RoHS3 compliant and actively produced. However, this substitute has the following limitations: supply voltage range is restricted to 4.5V to 18V (versus 35V maximum), peak output current is reduced to 6A (versus 9A), and the minimum operating temperature is -40°C (versus -55°C). The MIC4429YN does not support IGBT gate driving, limiting its application to MOSFET-only designs. Selection of the MIC4429YN requires verification that the application does not exceed 18V supply voltage, does not require IGBT support, and can operate with 6A peak output current.

Frequently Asked Questions (FAQ)

Q: Can the IXDI609PI be used as a direct replacement for the IXDI409PI?

A: Yes. Both devices share identical package footprint (8-DIP through-hole), driven configuration (low-side), channel type (single), driver count (1), input type (inverting), supply voltage range (4.5V to 35V), and peak output current (9A source and sink). The IXDI609PI is the recommended substitute due to active production status and RoHS3 compliance.

Q: What are the limitations of using the MIC4429YN as a substitute?

A: The MIC4429YN has three key limitations: (1) maximum supply voltage is 18V instead of 35V, (2) peak output current is 6A instead of 9A, and (3) it does not support IGBT gate driving. Use the MIC4429YN only in applications that operate within 4.5V to 18V supply range, require only MOSFET gate driving, and can function with 6A peak output current.

Q: Are all three devices pin-compatible?

A: Yes. All three devices use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin assignments for low-side gate driver applications. Direct board-level substitution is possible without PCB modification.

Q: What is the minimum operating temperature difference between these devices?

A: The IXDI409PI and IXDI609PI operate from -55°C to 150°C. The MIC4429YN operates from -40°C to 150°C. Applications requiring operation below -40°C must use either the IXDI409PI or IXDI609PI.

Q: Do all substitute parts meet current environmental compliance standards?

A: The IXDI609PI and MIC4429YN are both RoHS3 compliant. The IXDI409PI compliance status is not specified in available documentation. For new designs or systems requiring RoHS3 certification, use either the IXDI609PI or MIC4429YN.

Q: How do rise and fall times affect gate driver selection?

A: Rise and fall times determine switching speed and EMI characteristics. The IXDI409PI has 10ns rise and fall times. The IXDI609PI has 22ns rise and 15ns fall times. The MIC4429YN has 12ns rise and 13ns fall times. Faster switching times reduce switching losses but may increase EMI. Verify that the application's switching frequency and EMI requirements are compatible with each device's timing specifications.