MP18851-A4BGLU-P

Isolators - Gate Drivers Overview

The MP18851-A4BGLU-P is a galvanically isolated, dual-channel gate driver from Monolithic Power Systems. It provides up to 4A source and sink peak current for high-side and low-side applications. The device features capacitive coupling with a 2500Vrms isolation voltage. Key electrical parameters include a typical propagation delay of 50ns, rise and fall times of 10ns, and an operating supply current of 2mA. It supports output drive supplies up to 30V with multiple under-voltage lockout options. The component is housed in a 13-pin LGA (5x5) package suitable for surface mount technology.

Isolators - Gate Drivers Feature Summary

• Galvanically isolated dual-channel architecture using capacitive coupling
• High peak current capability with 4A source and 4A sink outputs
• Integrated under-voltage lockout protection mechanisms
• Compact 13-pin LGA surface-mount packaging

Isolators - Gate Drivers Applications

• High-side and low-side half-bridge gate driving
• Isolated power supply control circuits
• Motor drive systems requiring galvanic isolation

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix A4BGLU-P against official MPS documentation to confirm pinout and thermal characteristics. Ensure compatibility with the intended isolation voltage requirements of 2500Vrms. Confirm availability through authorized distributors as stock levels may vary. Check for RoHS compliance status prior to integration into regulated assemblies.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with robust isolation is required. The 4A output current suits medium-power MOSFET or IGBT gates. Consider the 50ns propagation delay for timing-sensitive designs. The 13-pin LGA package offers a compact footprint for space-constrained PCB layouts compared to larger DIP alternatives.

Isolators - Gate Drivers Part Context

This part belongs to the MP18851 family of isolated gate drivers. It shares functional similarities with variants like the MP18851-A4BGLU-Z but differs in specific ordering suffixes that may indicate tape-and-reel packaging or specific manufacturing batches. It serves as a solution for applications needing reliable signal transmission across isolation barriers without magnetic components.

Isolators - Gate Drivers Replacement Considerations

The MP18851-A4BGLU-Z is a confirmed substitute within the same product family. Verify pin-to-pin compatibility and identical electrical specifications before swapping. Ensure the replacement matches the required isolation voltage and current drive capabilities.