MIC4469CWM

Overview

The MIC4469CWM is a quad low-side MOSFET gate driver manufactured by Microchip Technology, housed in a 16-SOIC surface-mount package. It operates within a supply voltage range of 4.5 V to 18 V and delivers a peak output current of 1.2 A for both sourcing and sinking. The device features independent drivers with rise and fall times of 25 ns each. Designed for commercial applications, it supports an operating temperature range from 0°C to +70°C. The component utilizes CMOS logic inputs and has a power dissipation rating of 1 W.

Feature Summary

• Provides four independent low-side gate drive channels for efficient control of external MOSFETs.
• Features symmetric switching characteristics with identical rise and fall times for consistent signal integrity.
• Supports standard CMOS logic input thresholds for direct interfacing with microcontrollers or logic circuits.

Applications

• Industrial motor control systems requiring precise low-side switching
• Power supply topologies utilizing multiple parallel MOSFET stages
• Inverter circuits for AC drive applications

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C) rather than industrial or automotive grades. Confirm that the 16-SOIC package dimensions align with the target PCB footprint. Check RoHS compliance status as older revisions may differ. Ensure the design accounts for the 1 W power dissipation limit under maximum load conditions.

Selection Notes

Select this component when four independent low-side drivers are required in a compact surface-mount form factor. The 1.2 A output current is suitable for driving medium-power MOSFETs without external amplification. Consider the 25 ns switching speed for general-purpose applications where ultra-fast switching is not critical. Verify that the 4.5 V minimum supply voltage meets the system's available rail.

Part Context

This part belongs to the MIC4469 series of quad gate drivers, designed for driving N-channel and P-channel MOSFETs. It serves as a robust interface between low-voltage logic controllers and high-current power switches. The SOIC-16 package offers a balance of thermal performance and board space efficiency compared to larger DIP packages.

Replacement Considerations

MIC4469YWM is a confirmed direct replacement offering an extended industrial temperature range (-40°C to +85°C). TC4469CPD and TC4469EPD are similar alternatives but utilize different packaging technologies. Verify pin compatibility and thermal requirements before substituting with non-direct equivalents.