IRS4428SPBF Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The IRS4428SPBF is a low-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET applications. This part operates with dual independent channels, supporting inverting and non-inverting input configurations. The IRS4428SPBF is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across driven configuration, channel type, gate type support, and electrical performance parameters within specified operating ranges.

Key Parameters

Parameter	IRS4428SPBF 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, 2.5V
Current - Peak Output (Source, Sink)	2.3A, 3.3A
Input Type	Inverting, Non-Inverting
Rise / Fall Time (Typ)	25ns, 25ns
Operating Temperature	-40°C ~ 150°C (TJ)
Package / Case	8-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)

Substitute Part Grouping Explanation

Substitute parts for the IRS4428SPBF are grouped based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following requirements:

Primary Compatibility Criteria:

Driven Configuration: Low-Side (mandatory)
Channel Type: Independent (mandatory)
Number of Drivers: 2 (mandatory)
Package / Case: 8-SOIC form factor (mandatory)
Mounting Type: Surface Mount (mandatory)

Electrical Performance Criteria:

Gate Type support must include N-Channel MOSFET at minimum
Supply voltage range must encompass or exceed 6V ~ 20V
Logic voltage thresholds (VIL, VIH) must be compatible with 0.8V, 2.5V
Peak output current (source and sink) must meet or exceed application requirements
Operating temperature range must support -40°C ~ 150°C or equivalent industrial range
Input type must support both inverting and non-inverting configurations

Compliance Criteria:

RoHS3 compliance required
REACH unaffected status preferred

Substitutes are classified into two categories: direct replacements (IRS4428STRPBF from Infineon) and functional equivalents (IXYS IXDF602 series, National Semiconductor LM5111-3MX/NOPB, Analog Devices MAX4428 and MAX628 series).

Parameter Comparison

Parameter	IRS4428SPBF	IRS4428STRPBF	IXDF602SI	IXDF602SIA	IXDF602SIATR	IXDF602SITR	LM5111-3MX/NOPB	MAX4428CSA+	MAX4428ESA+	MAX4428ESA+T	MAX628CSA+
Manufacturer	Infineon	Infineon	IXYS	IXYS	IXYS	IXYS	National Semiconductor	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim	Analog Devices/Maxim
Driven Configuration	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side	Low-Side
Channel Type	Independent	Independent	Independent	Independent	Independent	Independent	Independent	Independent	Independent	Independent	Independent
Number of Drivers	2	2	2	2	2	2	2	2	2	2	2
Gate Type	IGBT, N-Channel MOSFET	IGBT, N-Channel MOSFET	IGBT, N-Channel, P-Channel MOSFET	IGBT, N-Channel, P-Channel MOSFET	IGBT, N-Channel, P-Channel MOSFET	IGBT, N-Channel, P-Channel MOSFET	N-Channel MOSFET	N-Channel, P-Channel MOSFET	N-Channel, P-Channel MOSFET	N-Channel, P-Channel MOSFET	N-Channel, P-Channel MOSFET
Voltage - Supply	6V ~ 20V	6V ~ 20V	4.5V ~ 35V	4.5V ~ 35V	4.5V ~ 35V	4.5V ~ 35V	4.6V ~ 14V	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.5V	0.8V, 2.5V	0.8V, 3V	0.8V, 3V	0.8V, 3V	0.8V, 3V	0.8V, 2.2V	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.4V
Current - Peak Output (Source, Sink)	2.3A, 3.3A	2.3A, 3.3A	2A, 2A	2A, 2A	2A, 2A	2A, 2A	3A, 5A	1.5A, 1.5A	1.5A, 1.5A	1.5A, 1.5A	2A, 2A
Input Type	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting
Rise / Fall Time (Typ)	25ns, 25ns	25ns, 25ns	7.5ns, 6.5ns	7.5ns, 6.5ns	7.5ns, 6.5ns	7.5ns, 6.5ns	14ns, 12ns	20ns, 20ns	20ns, 20ns	20ns, 20ns	25ns, 20ns
Operating Temperature	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)	-40°C ~ 125°C (TJ)	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	0°C ~ 70°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC-EP (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC-EP (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1: Direct Replacement (Recommended)

IRS4428STRPBF is the primary substitute for IRS4428SPBF. This part is manufactured by Infineon Technologies and maintains identical electrical specifications, gate type support, and operating temperature range. The only difference is product status (active versus obsolete) and packaging format options. IRS4428STRPBF is available in Cut Tape and Digi-Reel packaging with 62,357 units in stock, providing supply continuity. This part requires no circuit redesign and is fully pin-compatible.

Tier 2: Functional Equivalents with Extended Performance

IXYS IXDF602 series (IXDF602SI, IXDF602SIA, IXDF602SIATR, IXDF602SITR) offers superior electrical performance with faster rise/fall times (7.5ns/6.5ns versus 25ns/25ns) and extended supply voltage range (4.5V ~ 35V). These parts support P-Channel MOSFET in addition to IGBT and N-Channel MOSFET. Operating temperature range extends to -55°C, exceeding the original specification. Exposed pad variants (IXDF602SI, IXDF602SITR) provide enhanced thermal performance. These parts are suitable for applications requiring improved switching speed or wider supply voltage tolerance.

Tier 3: Alternative Equivalents

National Semiconductor LM5111-3MX/NOPB provides higher peak output current (3A source, 5A sink) with faster switching characteristics (14ns/12ns). Supply voltage range is narrower (4.6V ~ 14V), limiting applicability to designs within this window. Operating temperature maximum is 125°C, below the original specification.

Analog Devices MAX4428 series (MAX4428CSA+, MAX4428ESA+, MAX4428ESA+T) and MAX628CSA+ offer symmetric or near-symmetric output current capability with compatible logic thresholds. MAX4428 variants provide 1.5A peak output current, below the original specification. MAX628CSA+ provides 2A symmetric output current. Operating temperature ranges vary by variant (0°C ~ 70°C or -40°C ~ 85°C). These parts are suitable for applications with lower output current requirements.

Selection Criteria Summary:

For direct replacement with no design changes: IRS4428STRPBF
For improved switching performance and extended temperature range: IXDF602 series
For higher output current capability: LM5111-3MX/NOPB
For lower current applications: MAX4428 or MAX628 series

All recommended substitutes maintain 8-SOIC package compatibility, dual independent channel configuration, and support for both inverting and non-inverting inputs.

Frequently Asked Questions (FAQ)

Q: Can IRS4428STRPBF be used as a direct drop-in replacement for IRS4428SPBF?

A: Yes. IRS4428STRPBF is electrically and mechanically identical to IRS4428SPBF. Both parts share the same base product number (IRS4428), identical supply voltage range (6V ~ 20V), logic thresholds (0.8V, 2.5V), peak output current (2.3A source, 3.3A sink), and operating temperature range (-40°C ~ 150°C). The primary difference is product status and packaging format. No circuit modifications are required.

Q: What are the key differences between IXDF602 variants?

A: IXDF602 variants differ in packaging format and thermal characteristics. IXDF602SI and IXDF602SITR feature exposed pads (8-SOIC-EP) for improved thermal dissipation. IXDF602SIA and IXDF602SIATR use standard 8-SOIC packaging without exposed pads. Packaging suffixes indicate distribution format: SI (tube), SIA (tube), SIATR (cut tape & reel), SITR (tape & reel). All variants share identical electrical specifications and are functionally equivalent.

Q: Why do some substitutes have lower peak output current than the original?

A: MAX4428 series parts provide 1.5A peak output current, below the IRS4428SPBF specification of 2.3A source and 3.3A sink. These parts are suitable only for applications with lower gate drive current requirements. If your design requires the full 2.3A/3.3A output current, select IRS4428STRPBF, IXDF602 series, or LM5111-3MX/NOPB.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts except LM5111-3MX/NOPB are explicitly listed as ROHS3 compliant. LM5111-3MX/NOPB RoHS status is not specified in the provided data. Verify RoHS compliance with the manufacturer if this is a requirement for your application.

Q: Can I use MAX4428 or MAX628 in place of IRS4428SPBF?

A: MAX4428 and MAX628 are functional equivalents with compatible logic thresholds and input types, but with reduced peak output current (1.5A to 2A versus 2.3A/3.3A). These parts are suitable only for applications with lower gate drive current demands. For applications requiring the full output current specification, use IRS4428STRPBF or IXDF602 series.

Q: What is the operating temperature difference between variants?

A: IRS4428SPBF and IRS4428STRPBF operate from -40°C to 150°C (junction temperature). IXDF602 series extends the lower limit to -55°C. LM5111-3MX/NOPB operates to 125°C maximum. MAX4428 variants operate from 0°C to 70°C or -40°C to 85°C depending on the specific part number. Select based on your application's temperature requirements.

Q: Are 8-SOIC and 8-SOIC-EP packages pin-compatible?

A: Yes. 8-SOIC and 8-SOIC-EP packages are pin-compatible. The exposed pad in 8-SOIC-EP variants provides additional thermal performance but does not affect electrical pin configuration. Parts can be substituted between these package types without circuit modification, though PCB layout may be optimized to utilize the exposed pad for thermal management.

Q: Which substitute offers the fastest switching speed?

A: IXDF602 series offers the fastest switching performance with rise/fall times of 7.5ns and 6.5ns, compared to 25ns for the original IRS4428SPBF. LM5111-3MX/NOPB provides intermediate performance at 14ns/12ns. MAX4428 and MAX628 series provide 20ns to 25ns switching times. Select based on your application's switching frequency and EMI requirements.

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