TC429MJA Equivalent & Substitute Parts

Part Overview

The TC429MJA is a low-side gate driver IC manufactured by Microchip Technology, designed to drive N-Channel and P-Channel MOSFETs in power management applications. This device operates with a single inverting input and delivers 6A peak output current for both source and sink configurations.

The TC429MJA is classified as obsolete. Locating equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or system updates.

Substiute Parts

TC429MJA

Microchip TechnologyIn Stock: 1177TC429MJA Datasheet

Current PartRFQ

TC429EPA

Microchip TechnologyIn Stock: 2144TC429EPA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC429MJA is determined by the following critical parameters:

• Driven Configuration: Low-Side
• Channel Type: Single
• Gate Type: N-Channel, P-Channel MOSFET
• Voltage - Supply: 7V ~ 18V
• Logic Voltage - VIL, VIH: 0.8V, 2.4V
• Current - Peak Output (Source, Sink): 6A, 6A
• Input Type: Inverting
• Rise / Fall Time (Typ): 23ns, 25ns
• Base Product Number: TC429

The TC429EPA qualifies as a direct substitute because it maintains identical electrical specifications across all critical parameters. The primary difference is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The TC429EPA is the manufacturer-recommended substitute for the TC429MJA. Both devices share identical electrical characteristics and are ROHS3 compliant. The TC429EPA carries active product status, ensuring ongoing availability and support from Microchip Technology.

The TC429MJA operates across an extended lower temperature range (-55°C minimum) compared to the TC429EPA (-40°C minimum). Applications requiring operation below -40°C must retain the TC429MJA or identify alternative solutions outside this substitute group.

Both devices use through-hole mounting with compatible 8-pin DIP package footprints. Physical board layout compatibility should be verified for the specific package variant.

Frequently Asked Questions (FAQ)

Q: Can TC429EPA directly replace TC429MJA in all applications?

A: The TC429EPA is electrically equivalent for applications operating within -40°C to 150°C. Applications requiring operation below -40°C require the TC429MJA or alternative parts.

Q: What is the difference between 8-CDIP and 8-DIP packaging?

A: Both are through-hole 8-pin DIP packages with 0.300" (7.62mm) spacing. The CDIP variant (TC429MJA) and standard DIP variant (TC429EPA) are mechanically compatible on standard DIP sockets and PCB footprints.

Q: Why is TC429MJA obsolete?

A: The TC429MJA has been discontinued by Microchip Technology. The TC429EPA remains in active production and serves as the current equivalent.

Q: Are there compliance differences between TC429MJA and TC429EPA?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: What inventory status should I expect?

A: TC429MJA stock is limited (1110 pcs available). TC429EPA is actively produced with higher availability (2100 pcs available).