MP18851-A4BGSE-Z

Isolators - Gate Drivers Overview

The MP18851-A4BGSE-Z is a dual-channel isolated gate driver manufactured by Monolithic Power Systems. It utilizes capacitive coupling technology to provide galvanic isolation between input and output stages. The device features up to 4A source and sink peak current capability, supporting high-speed switching applications. It offers a 3000Vrms isolation rating with a 5kVRMS withstand voltage capability. The component is housed in a 16-SOIC package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology for signal transmission
• Dual-channel configuration for half-bridge or full-bridge topologies
• High peak current drive capability of 4A
• Robust isolation performance with 5kVRMS withstand voltage

Isolators - Gate Drivers Applications

• Industrial motor drives
• Solar inverters
• Uninterruptible power supplies (UPS)
• Switched-mode power supplies (SMPS)

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'Z' indicates lead-free compliance and tape-and-reel packaging as per MPS standards. Confirm the 16-SOIC package variant matches the design footprint. Ensure the 3000Vrms isolation rating meets system safety requirements. Cross-reference the datasheet for thermal management needs under maximum load conditions.

Isolators - Gate Drivers Selection Notes

Select this component when high-frequency operation and robust galvanic isolation are required. The 4A drive strength suits medium-power MOSFETs and IGBTs. Consider the SOIC-16 package for standard PCB layouts. Evaluate the capacitive coupling immunity against common-mode transients for noisy environments compared to magnetic isolation alternatives.

Isolators - Gate Drivers Part Context

This part belongs to the MP18851 family of isolated gate drivers from Monolithic Power Systems. It complements other variants like the MP18831 and MP18811 series, which may use different isolation technologies such as optical or magnetic coupling. The A4BGSE-Z designation specifies the electrical grade, package type, and reel packaging format within the broader product line.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include other MPS isolated gate drivers with similar 4A drive and 3000Vrms isolation ratings. Verify pinout compatibility before replacing with non-MPS equivalents. Check if alternative packages like LGA-13 or Wide Body SOIC offer better thermal performance for specific applications.