TC1427EPA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The TC1427EPA 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 non-inverting, dual-channel gate driver operates from a 4.5V to 16V supply and is housed in an 8-PDIP through-hole package. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or application-specific performance needs.

Substiute Parts

TC1427EPA

Microchip TechnologyIn Stock: 1466TC1427EPA Datasheet

Current PartRFQ

TC4427AEPA

Microchip TechnologyIn Stock: 1667TC4427AEPA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC1427EPA is determined by strict alignment of 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 MOSFETs
• Input Type: Must be Non-Inverting
• Package / Case: Must be 8-DIP (0.300", 7.62mm) through-hole
• Mounting Type: Must be Through Hole
• Supply Voltage Range: Must encompass or match 4.5V ~ 16V minimum requirement
• Operating Temperature Range: Must support -40°C ~ 85°C
• Compliance: Must maintain ROHS3 compliance

The TC4427AEPA qualifies as a direct substitute based on full alignment with all critical parameters. Both devices share identical driven configuration, channel count, gate type support, input logic, package form factor, and temperature operating range. Compliance certifications remain consistent across both parts.

Parameter Comparison

Engineering Selection Recommendations

The TC4427AEPA is a qualified substitute for the TC1427EPA based on product status and compliance alignment. Both devices maintain active production status and ROHS3 compliance. The TC4427AEPA offers enhanced electrical performance characteristics: extended supply voltage range (4.5V ~ 18V versus 4.5V ~ 16V), increased peak output current capability (1.5A versus 1.2A for both source and sink), and improved rise time performance (25ns versus 35ns). These performance enhancements are compatible with applications designed for the TC1427EPA and do not introduce incompatibility concerns. The identical package form factor, mounting type, and operating temperature range ensure direct mechanical and thermal compatibility. Selection between these parts should be based on application supply voltage requirements and output current demands.

Frequently Asked Questions (FAQ)

Q: Can the TC4427AEPA replace the TC1427EPA in existing designs?

A: Yes. Both devices share identical package form factor (8-DIP), mounting type (through-hole), driven configuration (low-side), channel count (2 independent), gate type support (N-Channel and P-Channel MOSFET), input logic (non-inverting), and operating temperature range (-40°C ~ 85°C). The TC4427AEPA is a direct mechanical and functional substitute.

Q: What are the key differences between TC1427EPA and TC4427AEPA?

A: The TC4427AEPA provides enhanced performance: supply voltage range extends to 18V (versus 16V), peak output current increases to 1.5A (versus 1.2A), and rise time improves to 25ns (versus 35ns). Logic voltage thresholds differ slightly (VIH 2.4V versus 3V). These differences represent performance improvements compatible with TC1427EPA applications.

Q: Are both parts ROHS3 compliant?

A: Yes. Both TC1427EPA and TC4427AEPA maintain ROHS3 compliance with MSL 1 (unlimited moisture sensitivity rating).

Q: Does package compatibility affect substitution?

A: No compatibility issues exist. Both parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging, ensuring direct PCB compatibility without layout modifications.

Q: What supply voltage range should I use for substitution?

A: The TC4427AEPA supports 4.5V ~ 18V, which encompasses the TC1427EPA range of 4.5V ~ 16V. Applications operating within the original 4.5V ~ 16V range are fully compatible with the TC4427AEPA.