IX4423N Low-Side Gate Driver IC

Part Overview

The IX4423N is a low-side gate driver IC manufactured by IXYS Integrated Circuits Division, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This device features an inverting input configuration with dual independent channels and operates across a 4.5V to 30V supply voltage range.

The IX4423N is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems currently utilizing this component.

Substiute Parts

IX4423N

IXYS Integrated Circuits DivisionIn Stock: 1384IX4423N Datasheet

Current PartRFQ

IX4426N

IXYS Integrated Circuits DivisionIn Stock: 2588IX4426N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IX4423N is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must support N-Channel and P-Channel MOSFET driving
• Input Type: Must be Inverting
• Package / Case: Must be 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Must be Surface Mount
• Supply Voltage Range: Must encompass or be compatible with 4.5V ~ 30V operation

The IX4426N meets all substitution criteria. Both devices share identical driven configuration, channel count, gate type support, input polarity, package form factor, and mounting technology. The IX4426N operates within the same supply voltage range and maintains functional equivalence for low-side gate driving applications.

Parameter Comparison

Engineering Selection Recommendations

The IX4426N is the manufacturer-recommended substitute for the obsolete IX4423N. Both devices are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

The IX4426N carries active product status, ensuring ongoing availability and manufacturer support. The IX4423N's obsolete classification necessitates transition to the IX4426N for new designs and ongoing production support.

Design integration requires evaluation of the following parameter differences: the IX4426N features reduced peak output current (1.5A versus 3A), faster switching characteristics (10ns/8ns rise/fall time versus 18ns/18ns), and a narrower operating temperature range (-40°C to 125°C versus -55°C to 150°C). Applications requiring the full 3A output capability or extended temperature operation below -40°C or above 125°C must assess compatibility with the IX4426N's specifications.

Frequently Asked Questions (FAQ)

Q: Can the IX4426N directly replace the IX4423N in existing designs?

A: The IX4426N is functionally equivalent for low-side gate driving applications. Both devices share identical package form factor (8-SOIC), supply voltage range (4.5V ~ 30V), driven configuration (low-side), channel count (2 independent), and input polarity (inverting). Design validation is required to confirm compatibility with reduced peak output current (1.5A) and operating temperature range (-40°C to 125°C).

Q: What are the key differences between these two parts?

A: The primary differences are peak output current (IX4423N: 3A; IX4426N: 1.5A), switching speed (IX4423N: 18ns; IX4426N: 10ns/8ns), operating temperature range (IX4423N: -55°C to 150°C; IX4426N: -40°C to 125°C), and product status (IX4423N: obsolete; IX4426N: active).

Q: Are both parts available in the same package?

A: Yes. Both the IX4423N and IX4426N are supplied in 8-SOIC (0.154", 3.90mm width) surface mount packages with identical pinout and footprint compatibility.

Q: What compliance certifications apply to both parts?

A: Both the IX4423N and IX4426N are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Why is the IX4423N classified as obsolete?

A: The IX4423N has reached end-of-life status with IXYS Integrated Circuits Division. The IX4426N represents the active replacement offering equivalent functionality with enhanced switching performance and active manufacturer support.