IR4428STR Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IR4428STR is a low-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET applications. This device features dual independent channels with inverting and non-inverting input configurations in an 8-SOIC package. The IR4428STR is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Equivalent alternatives must maintain functional compatibility across driven configuration, channel architecture, gate type support, and electrical performance parameters.

Key Parameters

Parameter	IR4428STR Value
Driven Configuration	Low-Side
Channel Type	Independent
Number of Drivers	2
Gate Type	IGBT, N-Channel MOSFET
Voltage - Supply	6V ~ 20V
Logic Voltage - VIL, VIH	0.8V, 2.7V
Current - Peak Output (Source, Sink)	2.3A, 3.3A
Input Type	Inverting, Non-Inverting
Rise / Fall Time (Typ)	15ns, 10ns
Operating Temperature	-40°C ~ 150°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the IR4428STR are selected based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following mandatory parameters:

Driven Configuration: Low-Side only
Channel Type: Independent dual channels
Number of Drivers: 2
Input Type: Inverting and Non-Inverting support
Package: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Gate Type: Support for IGBT and/or N-Channel MOSFET

Substitutes are grouped by their ability to operate within or exceed the IR4428STR supply voltage range (6V ~ 20V), logic threshold compatibility (VIL ≤ 0.8V, VIH ≥ 2.7V), and output current capability (Source ≥ 2.3A, Sink ≥ 3.3A). Parts meeting these criteria are direct functional equivalents. Parts with extended supply voltage ranges, improved output current ratings, or faster switching times represent enhanced alternatives suitable for the same application space.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	VIL / VIH	Peak Output (Source / Sink)	Rise / Fall Time	Operating Temp	Gate Type Support	Product Status	RoHS Status
IR4428STR	Infineon Technologies	6V ~ 20V	0.8V / 2.7V	2.3A / 3.3A	15ns / 10ns	-40°C ~ 150°C	IGBT, N-Channel MOSFET	Obsolete	Non-compliant
IXDF602SI	IXYS Integrated Circuits Division	4.5V ~ 35V	0.8V / 3V	2A / 2A	7.5ns / 6.5ns	-55°C ~ 150°C	IGBT, N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
IXDF602SIA	IXYS Integrated Circuits Division	4.5V ~ 35V	0.8V / 3V	2A / 2A	7.5ns / 6.5ns	-55°C ~ 150°C	IGBT, N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
IXDF602SIATR	IXYS Integrated Circuits Division	4.5V ~ 35V	0.8V / 3V	2A / 2A	7.5ns / 6.5ns	-55°C ~ 150°C	IGBT, N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
IXDF602SITR	IXYS Integrated Circuits Division	4.5V ~ 35V	0.8V / 3V	2A / 2A	7.5ns / 6.5ns	-55°C ~ 150°C	IGBT, N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
LM5111-3MX/NOPB	National Semiconductor	3.5V ~ 14V	0.8V / 2.2V	3A / 5A	14ns / 12ns	-40°C ~ 125°C	N-Channel MOSFET	Active	Not specified
MAX4428CSA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	0.8V / 2.4V	1.5A / 1.5A	20ns / 20ns	0°C ~ 70°C	N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
MAX4428ESA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	0.8V / 2.4V	1.5A / 1.5A	20ns / 20ns	-40°C ~ 85°C	N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
MAX4428ESA+T	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	0.8V / 2.4V	1.5A / 1.5A	20ns / 20ns	-40°C ~ 85°C	N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
MAX628CSA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	0.8V / 2.4V	2A / 2A	25ns / 20ns	0°C ~ 70°C	N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant
MAX628CSA+T	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	0.8V / 2.4V	2A / 2A	25ns / 20ns	0°C ~ 70°C	N-Channel, P-Channel MOSFET	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed are active production devices, eliminating obsolescence risk associated with the IR4428STR. Selection among substitutes depends on application-specific requirements within the following framework:

IXYS IXDF602 Series (IXDF602SI, IXDF602SIA, IXDF602SIATR, IXDF602SITR): These parts offer the widest supply voltage range (4.5V ~ 35V) and fastest switching performance (7.5ns rise, 6.5ns fall). ROHS3 compliance and extended temperature range (-55°C ~ 150°C) support demanding industrial applications. Output current ratings (2A source, 2A sink) are lower than the IR4428STR but sufficient for many MOSFET and IGBT gate drive applications. Packaging variants include tube, cut tape, and tape & reel options.

National Semiconductor LM5111-3MX/NOPB: This part provides the highest peak output current capability (3A source, 5A sink) and operates within the IR4428STR supply voltage window (3.5V ~ 14V overlaps 6V ~ 20V range). Logic thresholds (0.8V / 2.2V) are compatible. Operating temperature range (-40°C ~ 125°C) is slightly narrower than the IR4428STR. Gate type support is limited to N-Channel MOSFET only, excluding IGBT applications.

Analog Devices MAX4428 and MAX628 Series: These parts provide ROHS3 compliance and active production status. MAX4428 variants (CSA+, ESA+, ESA+T) deliver 1.5A output current with extended temperature variants. MAX628 variants (CSA+, CSA+T) provide 2A output current matching the IXDF602 series. Operating temperature ranges vary (0°C ~ 70°C or -40°C ~ 85°C). All support N-Channel and P-Channel MOSFET gate driving. Packaging includes tube and tape & reel options.

For applications requiring IGBT support, IXDF602 series parts are the primary alternatives. For applications limited to MOSFET gate driving with high current requirements, LM5111-3MX/NOPB is suitable. For general-purpose MOSFET applications with RoHS compliance requirements, MAX4428 or MAX628 series provide cost-effective alternatives.

Frequently Asked Questions (FAQ)

Q: Can IXDF602 series parts directly replace IR4428STR in existing designs?

A: IXDF602 series parts are functionally compatible as low-side gate drivers with dual independent channels and inverting/non-inverting inputs in 8-SOIC packages. However, output current ratings differ (2A vs. 2.3A source, 2A vs. 3.3A sink). Applications requiring the full 3.3A sink current of the IR4428STR must evaluate whether 2A sink current from IXDF602 is acceptable. Supply voltage range is broader (4.5V ~ 35V vs. 6V ~ 20V), providing additional design flexibility.

Q: Which substitute supports IGBT gate driving?

A: IXDF602 series parts (IXDF602SI, IXDF602SIA, IXDF602SIATR, IXDF602SITR) explicitly support IGBT gate type. LM5111-3MX/NOPB and MAX4428/MAX628 series are limited to N-Channel and P-Channel MOSFET support and do not include IGBT in their gate type specifications.

Q: What is the difference between IXDF602SI and IXDF602SIA?

A: Both parts are functionally identical with identical electrical specifications. IXDF602SI features an exposed pad (8-SOIC-EP package), while IXDF602SIA uses standard 8-SOIC packaging without exposed pad. Selection depends on thermal management requirements and PCB layout capabilities.

Q: Are all substitute parts RoHS compliant?

A: IXYS IXDF602 series and Analog Devices MAX4428/MAX628 series are ROHS3 compliant. LM5111-3MX/NOPB RoHS status is not specified in available data. For applications requiring RoHS compliance certification, IXDF602 or MAX series parts are recommended.

Q: What packaging options are available for substitutes?

A: IXDF602 series offers tube, cut tape (CT) & Digi-Reel, and tape & reel (TR) packaging. LM5111-3MX/NOPB is supplied in bulk packaging. MAX4428 and MAX628 series are available in tube and tape & reel formats. Selection depends on production volume and supply chain requirements.

Q: Can LM5111-3MX/NOPB replace IR4428STR in IGBT applications?

A: No. LM5111-3MX/NOPB gate type support is limited to N-Channel MOSFET only. IGBT applications require IXDF602 series parts, which explicitly support IGBT gate type.

Q: What is the operating temperature range consideration for substitution?

A: IR4428STR operates from -40°C ~ 150°C (junction temperature). IXDF602 series matches this range (-55°C ~ 150°C). LM5111-3MX/NOPB operates -40°C ~ 125°C, which is narrower. MAX4428/MAX628 series operate 0°C ~ 70°C or -40°C ~ 85°C depending on variant. Applications requiring full -40°C ~ 150°C operation must use IXDF602 series.

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