IXDI409CI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDI409CI 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 component operates with an inverting input configuration and is housed in a TO-220-5 package for through-hole mounting. The IXDI409CI is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations where legacy component replacement is required.

Substiute Parts

IXDI409CI

IXYSIn Stock: 1180IXDI409CI Datasheet

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IXDI609CI

IXYS Integrated Circuits DivisionIn Stock: 1204IXDI609CI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IXDI409CI are identified based on strict electrical and mechanical compatibility criteria. The following parameters define acceptable substitution:

Critical Matching Parameters:

• Driven Configuration: Low-Side (must match exactly)
• Channel Type: Single (must match exactly)
• Number of Drivers: 1 (must match exactly)
• Gate Type: IGBT, N-Channel, P-Channel MOSFET (must match exactly)
• Voltage - Supply: 4.5V ~ 35V (must match exactly)
• Input Type: Inverting (must match exactly)
• Package / Case: TO-220-5 (must match exactly)
• Mounting Type: Through Hole (must match exactly)

Allowable Parameter Variations:

• Logic Voltage (VIL, VIH): Minor variations within functional operating range
• Current - Peak Output: Equal or greater capacity acceptable
• Rise / Fall Time: Variations acceptable if within system timing requirements
• Operating Temperature: Equal or extended range acceptable
• Product Status: Active status preferred for new designs; obsolete acceptable for legacy replacement

The IXDI609CI meets all critical matching parameters and represents a direct functional equivalent with active product status.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Maintenance: The IXDI409CI, while obsolete, remains functionally viable for existing installations. The IXDI609CI provides a direct replacement path with identical electrical specifications for the critical parameters that define gate driver functionality: supply voltage range, output current capability, input logic type, and package form factor.

For New Designs: The IXDI609CI is the recommended selection due to active product status and ROHS3 compliance certification. This ensures long-term component availability and alignment with current regulatory requirements.

Timing Consideration: The IXDI609CI exhibits slightly slower rise and fall times (22ns rise, 15ns fall) compared to the IXDI409CI (10ns rise and fall). Applications with stringent switching speed requirements should verify that the increased propagation delay remains acceptable within system timing margins.

Compliance and Certification: The IXDI609CI carries ROHS3 compliance and REACH unaffected status, matching the environmental compliance profile of the original IXDI409CI. Both components are classified as ECCN EAR99 and share identical HTSUS coding.

Frequently Asked Questions (FAQ)

Q: Can the IXDI609CI be used as a direct replacement for the IXDI409CI in existing PCB designs?

A: Yes. Both components use identical TO-220-5 packaging with through-hole mounting. Pin configuration and electrical interface are compatible. No PCB modifications are required for physical substitution.

Q: What is the significance of the different rise and fall times between these parts?

A: The IXDI409CI specifies 10ns rise and fall times, while the IXDI609CI specifies 22ns rise and 15ns fall times. This difference affects gate switching speed. Applications with tight switching timing requirements should verify that the slower IXDI609CI timing remains within acceptable system margins. For most standard gate driving applications, this variation is not critical.

Q: Why is the IXDI409CI classified as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production and support. The IXDI609CI represents the active equivalent in the IXYS gate driver product line, ensuring continued availability and manufacturer support.

Q: Are there any compliance differences between the two parts?

A: The IXDI609CI is certified ROHS3 compliant, while the IXDI409CI compliance status is not specified in available documentation. Both parts are REACH unaffected and carry identical ECCN and HTSUS classifications. For applications requiring RoHS compliance documentation, the IXDI609CI is the appropriate selection.

Q: What is the difference between VIL/VIH specifications of 0.8V/4.6V versus 0.8V/3.0V?

A: Both specifications define the logic input threshold voltages. The IXDI409CI specifies a higher VIH (4.6V) compared to the IXDI609CI (3.0V). Both values are within standard logic level ranges and compatible with typical 3.3V and 5V logic signal sources. This variation does not affect functional substitution in standard applications.

Q: Is the IXDI609CI available in the same packaging options as the IXDI409CI?

A: Both components are supplied in TO-220-5 through-hole packages. The IXDI609CI is available in tube packaging, while the IXDI409CI packaging format is not specified. For PCB assembly and component handling, verify packaging and tape/reel availability with your supplier based on production volume requirements.