MCP14A0455-E/SN

Overview

The MCP14A0455-E/SN is a dual MOSFET gate driver from Microchip Technology, housed in an SOIC-8 surface-mount package. It provides independent inverting and non-inverting outputs with a peak output current of 4.5 A. The device operates on a single supply voltage ranging from 4.5 V to 18 V. Key electrical characteristics include rise and fall times of 14 ns, a maximum propagation delay of 31 ns, and a quiescent supply current of 620 uA. It supports power dissipation up to 1.85 W and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides dual-channel drive capability with separate inverting and non-inverting logic outputs for flexible control configurations.
• Delivers high peak source and sink currents of 4.5 A to ensure rapid switching of external MOSFETs.
• Features low threshold input compatibility, allowing direct interfacing with standard CMOS logic levels.
• Operates reliably across an extended industrial temperature range without requiring additional thermal management components.

Applications

• Low-side switching in motor control systems
• Power supply gate driving for DC-DC converters
• Industrial automation inverters

Procurement Notes

Verify the specific suffix 'SN' corresponds to the SOIC-8 package when sourcing. Confirm that the '-E' designation indicates the extended temperature grade suitable for industrial environments. Ensure the application circuit accounts for the 1.85 W power dissipation limit under maximum load conditions. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.

Selection Notes

Select this component when a dual-output driver with asymmetric logic (inverting/non-inverting) is required for low-side applications. The 4.5 A current rating suits medium-power MOSFETs where fast switching speeds are critical. Consider the SOIC-8 footprint constraints and verify that the 4.5 V minimum supply voltage aligns with the system's available rail. Compare against the TDFN-8 variant if board space is more constrained than thermal performance.

Part Context

This part belongs to the MCP14A series of automotive-grade MOSFET drivers. It shares functional similarities with other members like the MCP14A0303 but offers higher current capacity. The series is designed for robust performance in noisy electromagnetic environments typical of automotive and industrial sectors.

Replacement Considerations

The MCP14A0455-E/MNY serves as a package alternative using TDFN-8. Verify pin-to-pin compatibility before substitution. Other current ratings in the family may require re-evaluation of thermal and switching performance.