MAX627CSA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MAX627CSA is a low-side gate driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for driving N-Channel and P-Channel MOSFETs in 8-SOIC surface mount packaging. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity. The MAX627CSA operates with a supply voltage range of 4.5V to 18V and delivers 2A peak output current (source and sink), making it suitable for moderate-power gate driving applications.

Key Parameters

Parameter	Value
Driven Configuration	Low-Side
Channel Type	Independent
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)	2A, 2A
Input Type	Non-Inverting
Rise / Fall Time (Typ)	25ns, 20ns
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX627CSA is determined by strict compatibility across the following critical parameters:

Mandatory Compatibility Criteria:

Driven Configuration: Low-Side (all substitutes must match)
Channel Type: Independent (all substitutes must match)
Number of Drivers: 2 (all substitutes must match)
Input Type: Non-Inverting (all substitutes must match)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (all substitutes must match)
Mounting Type: Surface Mount (all substitutes must match)

Allowable Parameter Variations:

Voltage - Supply: Minimum 4.5V required; maximum may exceed 18V
Current - Peak Output: Must meet or exceed 2A (source and sink)
Rise / Fall Time: May be faster than original specification
Operating Temperature: May extend beyond 0°C ~ 70°C range
Logic Voltage - VIL, VIH: Must accommodate 0.8V and 2.4V thresholds
RoHS Status: Active substitutes are RoHS3 compliant
Moisture Sensitivity Level: MSL 1 or MSL 3 acceptable

Substitutes are grouped into two categories: direct form-fit-function replacements and enhanced performance alternatives that maintain full electrical compatibility within the specified operating envelope.

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Peak Output Current (Source/Sink)	Rise/Fall Time (Typ)	Operating Temperature	Product Status	RoHS Status	Packaging
MAX627CSA	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	2A / 2A	25ns / 20ns	0°C ~ 70°C (TA)	Obsolete	RoHS non-compliant	Tube
MAX627CSA+	Analog Devices Inc./Maxim Integrated	4.5V ~ 18V	2A / 2A	25ns / 20ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant	Tube
MC34152DR2G	onsemi	6.1V ~ 18V	1.5A / 1.5A	36ns / 32ns	0°C ~ 150°C (TJ)	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
TC4424AVOA	Microchip Technology	4.5V ~ 18V	4.5A / 4.5A	12ns / 12ns	-40°C ~ 150°C (TJ)	Active	ROHS3 Compliant	Tube
TC4424AVOA713	Microchip Technology	4.5V ~ 18V	4.5A / 4.5A	12ns / 12ns	-40°C ~ 150°C (TJ)	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
TC4427ACOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	25ns / 25ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant	Tube
TC4427ACOA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	25ns / 25ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
TC4427AEOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	25ns / 25ns	-40°C ~ 85°C (TA)	Active	ROHS3 Compliant	Tube
TC4427AVOA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	25ns / 25ns	-40°C ~ 125°C (TA)	Active	ROHS3 Compliant	Tube
TC4427COA	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant	Tube
TC4427COA713	Microchip Technology	4.5V ~ 18V	1.5A / 1.5A	19ns / 19ns	0°C ~ 70°C (TA)	Active	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Direct Replacement (Form-Fit-Function): MAX627CSA+ is the direct active equivalent, maintaining identical electrical specifications and operating temperature range while achieving RoHS3 compliance. This part is recommended for designs requiring minimal qualification effort and maximum compatibility with existing MAX627CSA designs.

Performance-Enhanced Alternatives: TC4424AVOA and TC4424AVOA713 provide superior performance characteristics with 4.5A peak output current (2.25× the original specification) and faster switching times (12ns rise/fall versus 25ns/20ns). These parts accommodate extended operating temperature ranges (-40°C to 150°C) and are suitable for applications requiring higher drive capability or operation in wider temperature environments.

Balanced Substitutes: TC4427 series parts (ACOA, ACOA713, AEOA, AVOA, COA, COA713) offer active status and RoHS3 compliance with supply voltage compatibility (4.5V ~ 18V). These parts maintain the 1.5A output current specification and are available in both tube and cut tape packaging options. Temperature range variants accommodate different application requirements: standard industrial (0°C ~ 70°C), extended (−40°C ~ 85°C), and wide (−40°C ~ 125°C).

Limited Compatibility: MC34152DR2G operates with a minimum supply voltage of 6.1V (versus 4.5V for MAX627CSA) and delivers reduced peak output current (1.5A). This part is suitable only for applications where the 6.1V minimum supply voltage is acceptable and where 1.5A output current meets system requirements.

Frequently Asked Questions (FAQ)

Q: Can MC34152DR2G be used as a direct replacement for MAX627CSA? A: MC34152DR2G is not a direct replacement. The minimum supply voltage requirement of 6.1V exceeds the MAX627CSA specification of 4.5V minimum. Use MC34152DR2G only if your application operates at 6.1V or higher supply voltage and 1.5A output current is sufficient.

Q: What is the difference between TC4427ACOA and TC4427ACOA713? A: Both parts are electrically identical with identical electrical specifications. The primary difference is packaging: TC4427ACOA is supplied in tube packaging, while TC4427ACOA713 is supplied in cut tape (CT) with Digi-Reel® format. Selection depends on assembly process requirements and volume handling.

Q: Are all substitute parts RoHS3 compliant? A: All substitute parts listed are RoHS3 compliant. The original MAX627CSA is RoHS non-compliant. MAX627CSA+ and all TC4427/TC4424 variants meet RoHS3 requirements.

Q: Which substitute offers the best performance upgrade? A: TC4424AVOA and TC4424AVOA713 provide the highest performance with 4.5A peak output current and 12ns switching times, representing a 2.25× increase in drive capability and 2.08× faster switching compared to MAX627CSA.

**Q: Can I use TC4427 parts in applications requiring 2A output

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