IXDN409CI Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IXDN409CI is a low-side gate driver IC manufactured by IXYS, designed for driving IGBT, N-Channel, and P-Channel MOSFET devices. This non-inverting TO-220-5 package device operates across a supply voltage range of 4.5V to 35V and delivers peak output currents of 9A for both source and sink configurations. The IXDN409CI is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

IXDN409CI

IXYSIn Stock: 1043IXDN409CI Datasheet

Current PartRFQ

IXDN609CI

IXYS Integrated Circuits DivisionIn Stock: 2509IXDN609CI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IXDN409CI is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

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

Allowable Variation Parameters:

• Logic Voltage - VIL, VIH: Minor variations acceptable within standard logic thresholds
• Current - Peak Output (Source, Sink): Equal or greater capacity acceptable
• Rise / Fall Time (Typ): Variations acceptable if within functional requirements
• Operating Temperature: Equal or extended range acceptable

The IXDN609CI qualifies as a direct substitute based on matching all mandatory parameters while maintaining functional compatibility across allowable variation parameters.

Parameter Comparison

Engineering Selection Recommendations

The IXDN609CI is a qualified substitute for the obsolete IXDN409CI based on the following engineering criteria:

Product Status Alignment: The IXDN609CI maintains active product status with IXYS, ensuring continued availability and manufacturer support. This addresses the primary limitation of the IXDN409CI's obsolete classification.

Compliance and Certifications: The IXDN609CI carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. Both parts maintain REACH Unaffected status, confirming compliance with chemical substance restrictions.

Functional Equivalence: All mandatory electrical and mechanical parameters align between the two devices. The IXDN609CI operates within identical supply voltage ranges (4.5V ~ 35V), supports the same gate types (IGBT, N-Channel, P-Channel MOSFET), and delivers equivalent peak output currents (9A source and sink).

Packaging and Mounting: Both devices utilize the TO-220-5 package with through-hole mounting, ensuring direct physical compatibility in existing PCB layouts without redesign requirements.

Parameter Variations: The IXDN609CI exhibits slightly slower rise and fall times (22ns and 15ns respectively, compared to 10ns for both on the IXDN409CI) and a marginally lower VIH threshold (3V versus 4.6V). These variations remain within acceptable operational tolerances for low-side gate driver applications and do not compromise functional performance in standard switching applications.

Frequently Asked Questions (FAQ)

Q: Can the IXDN609CI directly replace the IXDN409CI in existing designs?

A: Yes. The IXDN609CI is a direct substitute. Both devices share identical package geometry (TO-220-5), pinout configuration, and functional specifications for low-side gate driving applications. No PCB modifications are required.

Q: What is the primary reason for substitution?

A: The IXDN409CI is classified as obsolete. The IXDN609CI is an active product from the same manufacturer, ensuring continued availability, technical support, and compliance with current regulatory standards.

Q: Are there differences in switching speed between these devices?

A: Yes. The IXDN609CI exhibits rise and fall times of 22ns and 15ns respectively, compared to 10ns for both parameters on the IXDN409CI. This represents a slower switching response. For applications requiring the original 10ns timing specification, system-level timing analysis is necessary to confirm acceptable performance with the substitute device.

Q: Do both devices support the same gate types?

A: Yes. Both the IXDN409CI and IXDN609CI are rated to drive IGBT, N-Channel MOSFET, and P-Channel MOSFET devices without restriction.

Q: What is the difference in logic voltage thresholds?

A: The IXDN409CI specifies VIH at 4.6V, while the IXDN609CI specifies VIH at 3V. The VIL threshold remains at 0.8V for both devices. The IXDN609CI's lower VIH threshold may provide improved compatibility with lower-voltage logic signal sources.

Q: Are there compliance differences between the two parts?

A: The IXDN609CI carries ROHS3 compliance certification, meeting current environmental directives. The IXDN409CI compliance status is not specified in available documentation. Both devices maintain REACH Unaffected status.

Q: Can I use the IXDN609CI in new designs?

A: Yes. The IXDN609CI is recommended for new designs requiring low-side gate driver functionality in the TO-220-5 package. Its active product status ensures long-term availability and manufacturer support.

Q: Are the supply voltage ranges identical?

A: Yes. Both devices operate across the identical supply voltage range of 4.5V to 35V and support the same operating temperature range of -55°C to 150°C (junction temperature).