IR4428 Low-Side Gate Driver IC - Equivalent & Substitute Parts

Part Overview

The IR4428 is a low-side gate driver IC manufactured by Infineon Technologies, designed for driving IGBT and N-Channel MOSFET devices in power management applications. This component operates with a supply voltage range of 6V to 20V and delivers peak output currents of 2.3A (source) and 3.3A (sink). The IR4428 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	IR4428 Specification
Driven Configuration	Low-Side
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-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the IR4428 are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Driven Configuration: Low-Side (all substitutes match)
Number of Drivers: 2 independent channels (all substitutes match)
Package / Case: 8-DIP (0.300", 7.62mm) through-hole mounting (all substitutes match)
Input Type: Inverting and Non-Inverting capability (all substitutes match)
Gate Type: Support for IGBT and/or N-Channel MOSFET (all substitutes support at minimum N-Channel MOSFET)

Secondary Compatibility Parameters:

Voltage - Supply: Minimum 6V requirement (all substitutes exceed this with 4.5V minimum)
Current - Peak Output: Minimum 2.3A source / 3.3A sink (substitutes range from 1.2A to 4.5A)
Operating Temperature: Minimum -40°C to 150°C range (substitutes vary from 0°C to 150°C)
Logic Voltage Thresholds: VIL 0.8V, VIH 2.4V to 3V (all substitutes compatible)

Substitutes are grouped by their ability to meet or exceed the IR4428 electrical specifications while maintaining package and functional compatibility. Parts with extended temperature ranges (-40°C to 150°C) provide direct thermal equivalence. Parts with reduced temperature ranges (0°C to 70°C) are suitable for commercial-grade applications only.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Peak Output (Source, Sink)	Rise / Fall Time (Typ)	Operating Temperature	Product Status	RoHS Status
IR4428	Infineon Technologies	6V ~ 20V	2.3A, 3.3A	15ns, 10ns	-40°C ~ 150°C (TJ)	Obsolete	RoHS non-compliant
IXDF602PI	IXYS Integrated Circuits Division	4.5V ~ 35V	2A, 2A	7.5ns, 6.5ns	-55°C ~ 150°C (TJ)	Active	ROHS3 Compliant
MAX4428CPA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	1.5A, 1.5A	20ns, 20ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant
MAX4428EPA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	1.5A, 1.5A	20ns, 20ns	-40°C ~ 85°C (TA)	Active	ROHS3 Compliant
MAX628CPA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	2A, 2A	25ns, 20ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant
MCP1405-E/P	Microchip Technology	4.5V ~ 18V	4.5A, 4.5A	15ns, 18ns	-40°C ~ 150°C (TJ)	Active	ROHS3 Compliant
MIC4425YN	Microchip Technology	4.5V ~ 18V	3A, 3A	28ns, 32ns	-40°C ~ 150°C (TJ)	Active	ROHS3 Compliant
MIC4428YN	Microchip Technology	4.5V ~ 18V	1.5A, 1.5A	20ns, 29ns	-40°C ~ 150°C (TJ)	Active	ROHS3 Compliant
MIC4428ZN	Microchip Technology	4.5V ~ 18V	1.5A, 1.5A	20ns, 29ns	0°C ~ 150°C (TJ)	Active	ROHS3 Compliant
TC1428CPA	Microchip Technology	4.5V ~ 16V	1.2A, 1.2A	35ns, 25ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant
TC428CPA	Microchip Technology	4.5V ~ 18V	1.5A, 1.5A	30ns, 30ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Direct Thermal & Electrical Equivalents (Recommended for Obsolete Part Replacement):

MCP1405-E/P and MIC4425YN are the primary substitutes for the IR4428. Both parts maintain the full operating temperature range of -40°C to 150°C, matching the original specification. MCP1405-E/P provides superior peak output current (4.5A source/sink), exceeding the IR4428 specification and offering design margin. MIC4425YN delivers 3A source/sink current, meeting the IR4428 requirement. Both are ROHS3 compliant and carry active product status.

Tier 2 - Functional Equivalents with Reduced Temperature Range:

IXDF602PI offers the widest supply voltage range (4.5V to 35V) and extended temperature range (-55°C to 150°C), providing superior performance headroom. However, peak output current is 2A source/sink, slightly below the IR4428 specification. This part is suitable for applications where supply voltage flexibility is critical.

MAX4428EPA+ and MIC4428YN provide -40°C to 85°C and 0°C to 150°C operating ranges respectively, with 1.5A peak output current. These are suitable for applications where the full -40°C to 150°C range is not required.

Tier 3 - Commercial Temperature Range Only:

MAX4428CPA+, MAX628CPA+, TC1428CPA, and TC428CPA operate within 0°C to 70°C temperature ranges. These parts are restricted to commercial-grade applications and are not suitable for industrial or automotive environments requiring extended temperature operation.

All substitute parts are ROHS3 compliant, addressing the RoHS non-compliance status of the obsolete IR4428.

Frequently Asked Questions (FAQ)

Q: Can I directly replace IR4428 with any of these substitute parts?

A: Direct replacement depends on your application's temperature and current requirements. MCP1405-E/P and MIC4425YN maintain the full -40°C to 150°C operating range of the IR4428 and are recommended for direct substitution. Parts with 0°C to 70°C ratings are suitable only for commercial applications. Verify that your circuit's peak output current requirement does not exceed the substitute part's specification.

Q: What is the difference between parts rated at -40°C to 150°C (TJ) versus 0°C to 70°C (TA)?

A: TJ indicates junction temperature, representing the die temperature under operating conditions. TA indicates ambient temperature, representing the surrounding air temperature. Parts rated to -40°C to 150°C (TJ) are suitable for industrial and automotive applications. Parts rated to 0°C to 70°C (TA) are restricted to commercial environments with controlled temperature conditions.

Q: Why do some substitutes have lower peak output current than the IR4428?

A: Peak output current varies by design. Parts with 1.5A ratings (MAX4428CPA+, MAX4428EPA+, MIC4428YN, MIC4428ZN, TC428CPA) are functionally compatible if your circuit design does not require the full 2.3A source or 3.3A sink current of the IR4428. For applications requiring higher current margins, MCP1405-E/P (4.5A) or MIC4425YN (3A) are recommended.

Q: Are all substitute parts in the same 8-DIP package?

A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical and electrical pin compatibility with the IR4428. No PCB layout modifications are required for package substitution.

Q: What is the significance of ROHS3 compliance?

A: ROHS3 compliance indicates the part meets current Restriction of Hazardous Substances regulations. The IR4428 is RoHS non-compliant, making ROHS3-compliant substitutes necessary for new designs and production runs subject to environmental regulations.

Q: Which substitute offers the best performance upgrade?

A: IXDF602PI provides the widest supply voltage range (4.5V to 35V) and fastest switching times (7.5ns rise, 6.5ns fall). MCP1405-E/P delivers the highest peak output current (4.5A source/sink) with matching temperature range. Selection depends on whether voltage flexibility or current capacity is the priority for your application.

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