TC4423MJA Equivalent & Substitute Parts

Part Overview

The TC4423MJA 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 range with independent dual-channel configuration and 3A peak output current capability. The device is currently in active production status with 704 units available in stock. Alternative part numbers may be required due to packaging availability, inventory constraints, or specific application mounting requirements.

Substiute Parts

TC4423MJA

Microchip TechnologyIn Stock: 805TC4423MJA Datasheet

Current PartRFQ

TC4423VPA

Microchip TechnologyIn Stock: 3868TC4423VPA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC4423MJA is determined by the following critical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Gate Type: Must support N-Channel and P-Channel MOSFET driving
• Voltage - Supply: Must operate within 4.5V ~ 18V range
• Current - Peak Output: Must provide minimum 3A source and sink capability
• Input Type: Must be Inverting
• Rise / Fall Time: Must match 23ns rise and 25ns fall time specifications
• Mounting Type: Must be Through Hole
• Base Product Number: Must be TC4423 series

The TC4423VPA qualifies as a direct substitute based on these parameters. Both devices share identical electrical specifications, functional configuration, and compliance certifications. The primary difference is packaging format: TC4423MJA uses 8-CERDIP while TC4423VPA uses 8-PDIP, both with 0.300" (7.62mm) pitch and through-hole mounting.

Parameter Comparison

Engineering Selection Recommendations

Both TC4423MJA and TC4423VPA are active production devices with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

TC4423MJA (8-CERDIP): Select when existing PCB layouts specify ceramic DIP packaging or when the extended operating temperature range of -55°C to 150°C is required for extreme environment applications.

TC4423VPA (8-PDIP): Select when plastic DIP packaging is acceptable and operating temperature range of -40°C to 150°C meets application requirements. This variant offers higher inventory availability (3773 units in stock versus 704 units).

Both devices are functionally equivalent for standard gate driver applications within their specified operating parameters. PCB footprint compatibility must be verified during design phase, as CERDIP and PDIP packages have identical pitch but may differ in body dimensions and lead forming specifications.

Frequently Asked Questions (FAQ)

Q: Can TC4423VPA directly replace TC4423MJA on existing PCBs?

A: Electrical functionality is identical. Physical compatibility depends on PCB footprint design. Both packages use 0.300" (7.62mm) pitch through-hole mounting, but CERDIP and PDIP body dimensions differ. Verify footprint specifications in your PCB design files before substitution.

Q: What is the difference between CERDIP and PDIP packaging?

A: CERDIP (Ceramic DIP) uses ceramic substrate material and supports extended temperature ranges. PDIP (Plastic DIP) uses plastic substrate material. Both are through-hole mounted with identical lead pitch. PDIP is more cost-effective and suitable for standard industrial temperature ranges.

Q: Are there temperature range implications for substitution?

A: TC4423MJA operates from -55°C to 150°C junction temperature, while TC4423VPA operates from -40°C to 150°C. If your application requires operation below -40°C, TC4423MJA is required. For standard industrial applications (-40°C to 85°C ambient), both are suitable.

Q: Do both parts have identical electrical specifications?

A: Yes. Supply voltage (4.5V ~ 18V), output current (3A source/sink), rise/fall times (23ns/25ns), and all logic thresholds are identical across both variants.

Q: What compliance certifications apply to both parts?

A: Both TC4423MJA and TC4423VPA are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001.