MD1821K6-G

Overview

The MD1821K6-G is a high-speed, four-channel MOSFET gate driver featuring inverting outputs. It operates from a 3VDC to 5.5VDC supply voltage and provides a peak output current of 2A per channel. The device exhibits a propagation delay of 7ns and rise/fall times of 6.5ns (typical) at 10V. It is housed in a 16-pin VQFN package with dimensions of 3x3 mm. The operating temperature range extends from -20°C to +85°C.

Feature Summary

• Four independent channels for driving multiple MOSFETs simultaneously
• Inverting logic configuration for flexible control schemes
• High-speed switching capability with low propagation delay
• Compact surface-mount packaging suitable for space-constrained designs

Applications

• Compact isolated power supplies
• High-speed DC-DC converters
• Motor drive circuits requiring precise timing
• Industrial automation control systems

Procurement Notes

Verify the specific suffix 'K6' indicates the tape and reel packaging format containing 3300 units. Confirm the RoHS compliance status matches current manufacturing standards. Ensure the inverting output configuration aligns with the system's logical requirements before finalizing the order.

Selection Notes

Select this component when four-channel isolation or high-speed switching is required within a compact footprint. The inverting output characteristic must be considered during schematic design. Verify that the 2A peak current meets the gate charge requirements of the target MOSFETs under the intended operating voltage conditions.

Part Context

This part belongs to Microchip's high-speed gate driver family designed for power management applications. It complements non-inverting variants like the MD1820 series. The VQFN-16 package allows for efficient thermal dissipation in dense PCB layouts compared to larger DIP packages.

Replacement Considerations

The MD1820K6-G serves as a direct functional substitute if non-inverting outputs are acceptable. Verify pin compatibility and electrical parameters match the original design requirements before substitution.