MIC4429CM Equivalent & Substitute Parts

Part Overview

The MIC4429CM is a low-side gate driver IC manufactured by Microchip Technology, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This inverting gate driver operates across a 4.5V to 18V supply voltage range with peak output currents of 6A source and sink capability.

The MIC4429CM is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and replacement applications.

Substiute Parts

MIC4429CM

Microchip TechnologyIn Stock: 1697MIC4429CM Datasheet

Current PartRFQ

TC4429COA

Microchip TechnologyIn Stock: 1901TC4429COA Datasheet

DirectRFQ

TC4429COA713

Microchip TechnologyIn Stock: 3754TC4429COA713 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC4429CM are qualified based on the following critical parameters that determine functional equivalence:

• Driven Configuration: Low-Side
• Channel Type: Single
• Number of Drivers: 1
• Gate Type: N-Channel, P-Channel MOSFET support
• Voltage - Supply: 4.5V ~ 18V
• Logic Voltage - VIL, VIH: 0.8V, 2.4V
• Current - Peak Output (Source, Sink): 6A, 6A
• Input Type: Inverting
• Operating Temperature: 0°C ~ 150°C (TJ)
• Package / Case: 8-SOIC (0.154", 3.90mm Width)

The TC4429COA and TC4429COA713 meet all critical electrical and mechanical parameters required for direct substitution. Both parts are manufactured by Microchip Technology and maintain identical functional specifications within the allowed parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Both TC4429COA and TC4429COA713 are functionally equivalent substitutes for the MIC4429CM. Selection between these two options depends on packaging and supply chain requirements:

TC4429COA is supplied in Tube packaging and is suitable for applications requiring smaller order quantities or manual assembly processes.

TC4429COA713 is supplied in Tape & Reel (TR) packaging and is optimized for high-volume automated assembly operations.

Both substitute parts carry ROHS3 compliance certification, providing environmental and regulatory advantages over the discontinued MIC4429CM, which is RoHS non-compliant. Both parts maintain active product status with Microchip Technology, ensuring long-term availability and supply chain stability.

The rise and fall time specifications differ between the main part and substitutes (MIC4429CM: 12ns/13ns versus TC4429COA/TC4429COA713: 25ns/25ns). Both timing specifications fall within acceptable ranges for low-side gate driver applications and do not affect functional compatibility within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can TC4429COA and TC4429COA713 be used interchangeably with MIC4429CM?

A: Yes. Both parts meet all critical electrical and mechanical parameters required for direct substitution. The primary difference is packaging format: TC4429COA uses Tube packaging, while TC4429COA713 uses Tape & Reel packaging. Selection depends on assembly process requirements and order volume.

Q: What is the difference between TC4429COA and TC4429COA713?

A: Both parts are electrically identical. TC4429COA is packaged in Tube format for manual or small-batch assembly. TC4429COA713 is packaged in Tape & Reel format for automated high-volume production. The "713" suffix indicates the Tape & Reel packaging variant.

Q: Are there any timing differences between MIC4429CM and the substitute parts?

A: The MIC4429CM specifies rise and fall times of 12ns and 13ns respectively. The TC4429COA and TC4429COA713 specify 25ns for both rise and fall times. Both specifications are within acceptable operating ranges for low-side gate driver applications and do not affect functional compatibility.

Q: What are the compliance advantages of using TC4429COA or TC4429COA713?

A: Both substitute parts are ROHS3 compliant, whereas the MIC4429CM is RoHS non-compliant. This provides environmental compliance benefits and may be required for applications subject to RoHS regulations. Both parts maintain REACH Unaffected status.

Q: Will the 8-SOIC package fit existing PCB layouts designed for MIC4429CM?

A: Yes. All three parts use identical 8-SOIC packaging (0.154", 3.90mm Width) with surface mount mounting type. PCB layouts and footprints designed for MIC4429CM are directly compatible with TC4429COA and TC4429COA713.

Q: What inventory levels are available for substitute parts?

A: TC4429COA is available with 1800 pieces in stock. TC4429COA713 is available with 3690 pieces in stock. Both parts maintain active product status with Microchip Technology.