MIC4426CM Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MIC4426CM is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in inverting configuration. This part is currently discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and design requirements. The MIC4426CM operates with a supply voltage range of 4.5V to 18V and delivers peak output current of 1.5A for both source and sink operations. Its 8-SOIC surface mount package and independent dual-channel architecture make it suitable for applications requiring low-side gate driving functionality.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Part Number	MIC4426CM
Category	Power Management (PMIC)
Description	IC GATE DRVR LOW-SIDE 8SOIC
Driven Configuration	Low-Side
Number of Drivers	2
Gate Type	N-Channel, P-Channel MOSFET
Voltage - Supply	4.5V ~ 18V
Logic Voltage - VIL, VIH	0.8V, 2.4V
Current - Peak Output (Source, Sink)	1.5A, 1.5A
Input Type	Inverting
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 150°C (TJ)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution for the MIC4426CM is determined by strict electrical and mechanical compatibility across the following parameters:

Critical Substitution Parameters:

Driven Configuration: Low-Side (all substitutes match)
Number of Drivers: 2 independent channels (all substitutes match)
Gate Type: N-Channel, P-Channel MOSFET (all substitutes match)
Voltage - Supply: 4.5V ~ 18V (all substitutes match)
Logic Voltage - VIL, VIH: 0.8V, 2.4V (all substitutes match)
Current - Peak Output (Source, Sink): 1.5A, 1.5A (all substitutes match)
Input Type: Inverting (all substitutes match)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (all substitutes match)
Mounting Type: Surface Mount (all substitutes match)

Variable Parameters Affecting Selection:

Operating Temperature Range
Rise / Fall Time (Typ)
RoHS Compliance Status
Product Status (Active vs. Discontinued)
Packaging Format (Tube, Tape & Reel, Cut Tape & Digi-Reel)

All substitute parts listed maintain identical electrical specifications for supply voltage, output current, logic levels, and package dimensions. Differences in operating temperature range, switching speed, and compliance certifications allow for targeted selection based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Peak Output Current (Source/Sink)	Rise/Fall Time (Typ)	Operating Temperature	RoHS Status	Product Status	Packaging
MIC4426CM	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	20ns / 29ns	0°C ~ 150°C (TJ)	RoHS non-compliant	Discontinued	Tube
MIC4426ZM	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	20ns / 29ns	0°C ~ 150°C (TJ)	ROHS3 Compliant	Active	Tube
TC426COA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	30ns / 30ns	0°C ~ 70°C (TA)	ROHS3 Compliant	Active	Tube
TC426COA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	30ns / 30ns	0°C ~ 70°C (TA)	ROHS3 Compliant	Active	Tape & Reel (TR)
TC426EOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	30ns / 30ns	-40°C ~ 85°C (TA)	ROHS3 Compliant	Active	Tube
TC426EOA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	30ns / 30ns	-40°C ~ 85°C (TA)	ROHS3 Compliant	Active	Cut Tape (CT) & Digi-Reel®
TC4426COA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	0°C ~ 70°C (TA)	ROHS3 Compliant	Active	Tube
TC4426COA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	0°C ~ 70°C (TA)	ROHS3 Compliant	Active	Cut Tape (CT) & Digi-Reel®
TC4426EOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	-40°C ~ 85°C (TA)	ROHS3 Compliant	Active	Tube
TC4426EOA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	-40°C ~ 85°C (TA)	ROHS3 Compliant	Active	Cut Tape (CT) & Digi-Reel®
TC4426VOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	-40°C ~ 125°C (TA)	ROHS3 Compliant	Active	Tube

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility): MIC4426ZM is the primary substitute for MIC4426CM. Both parts share identical electrical specifications including supply voltage range, output current ratings, and switching characteristics. MIC4426ZM is currently active in production and ROHS3 compliant, addressing the compliance gap of the discontinued MIC4426CM while maintaining full functional equivalence.

Temperature-Constrained Applications (0°C ~ 70°C): TC426COA, TC426COA713, TC4426COA, and TC4426COA713 are suitable for applications operating within 0°C to 70°C ambient temperature range. These parts offer faster switching times (19ns to 30ns) compared to MIC4426CM and are ROHS3 compliant. TC4426 variants provide superior switching performance at 19ns rise/fall time.

Extended Temperature Range Applications (-40°C ~ 85°C): TC426EOA, TC426EOA713, TC4426EOA, and TC4426EOA713 extend the operating range to -40°C, accommodating industrial and automotive environments. These parts maintain 1.5A output current and are ROHS3 compliant.

Maximum Temperature Range Applications (-40°C ~ 125°C): TC4426VOA provides the widest operating temperature range, extending to 125°C, and delivers the fastest switching performance at 19ns. This part is suitable for high-temperature industrial applications while maintaining ROHS3 compliance.

Packaging Considerations: Tube packaging is standard for prototype and low-volume applications. Tape & Reel (TR) and Cut Tape & Digi-Reel® formats are optimized for automated assembly and high-volume production. Selection between packaging formats depends on manufacturing process requirements rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can MIC4426ZM directly replace MIC4426CM in existing designs? A: Yes. MIC4426ZM maintains identical electrical specifications for supply voltage (4.5V ~ 18V), output current (1.5A source/sink), logic levels (0.8V/2.4V), and 8-SOIC package dimensions. The primary difference is ROHS3 compliance status and active production status.

Q: What is the difference between TC426 and TC4426 series? A: Both series are functionally equivalent low-side gate drivers with identical supply voltage, output current, and package specifications. TC4426 variants offer faster switching times (19ns rise/fall) compared to TC426 variants (30ns rise/fall). Selection depends on application switching frequency requirements.

Q: Which substitute part should I use for a -40°C to 85°C operating environment? A: TC426EOA, TC426EOA713, TC4426EOA, or TC4426EOA713 are specified for -40°C to 85°C operation. If faster switching is required, select TC4426EOA or TC4426EOA713 (19ns switching time). For standard switching performance, TC426EOA or TC426EOA713 (30ns switching time) are suitable.

Q: Does packaging format affect electrical performance? A: No. Tube, Tape & Reel, and Cut Tape & Digi-Reel® packaging formats contain identical die and electrical specifications. Packaging selection is determined by manufacturing process automation requirements and volume production needs.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant. The original MIC4426CM is RoHS non-compliant, making substitution necessary for applications requiring RoHS compliance.

Q: What is the maximum operating temperature for MIC4426CM? A: MIC4426CM is rated for 0°C to 150°C junction temperature (TJ). For ambient temperature (TA) specifications, refer to the datasheet. Most substitute parts operate at lower maximum temperatures (70°C or 85°C ambient), except TC4426VOA which extends to 125°C ambient.

Q: Can I use TC4426VOA in place of MIC4426CM for all applications? A: TC4426VOA is electrically compatible and offers superior temperature range (-40°C ~ 125°C) and faster switching (19ns). It is suitable as a universal replacement for MIC4426CM across all temperature environments within its specification range.

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