MP18851-A4BGLU-Z

Isolators - Gate Drivers Overview

The MP18851-A4BGLU-Z is a galvanically isolated dual-channel gate driver from Monolithic Power Systems, housed in a 13-pin LGA (5mm x 5mm) package. It delivers up to 4A peak source and sink current with a typical propagation delay of 50ns and rise/fall times of 10ns. The device features 2500Vrms isolation voltage compliant with UL 1577 for 60 seconds. It operates with an input supply range of 2.8V to 5.5V and supports output drive supplies up to 30V. The component functions within a temperature range of -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Integrates two independent half-bridge drivers with high common-mode transient immunity exceeding 100kV/μs
• Provides robust galvanic isolation via proprietary capacitive coupling technology
• Supports flexible secondary side topology with configurable ground references
• Includes multiple under-voltage lockout protection options for power supply pins

Isolators - Gate Drivers Applications

• Isolated DC-DC converters
• Inverter drives
• Motor control systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix A4BGLU-Z against official MPS documentation to confirm the LGA-13 package and 2500Vrms isolation rating. Ensure compatibility with system voltage requirements before procurement. Availability may vary by region; consult authorized distributors for current stock status and lead times.

Isolators - Gate Drivers Selection Notes

Select this component when a compact solution with high CMTI and moderate isolation voltage is required. The LGA-13 package offers space efficiency compared to wider SOIC variants. Verify that the 2500Vrms rating meets safety standards for the target application, as higher ratings are available in other package types within the same family.

Isolators - Gate Drivers Part Context

This part belongs to the MP18851 series of isolated gate drivers designed for high-performance power switching applications. The series utilizes MPS's capacitive isolation technology to provide signal transmission across isolation barriers without magnetic components. The A4BGLU-Z variant specifically denotes the LGA-13 package configuration with defined isolation characteristics.

Isolators - Gate Drivers Replacement Considerations

MP18851-A4BGSE-Z

Isolators - Gate Drivers FAQ

What is the maximum isolation voltage for the LGA-13 package?

The MP18851-A4BGLU-Z provides 2500Vrms isolation voltage, certified for 60 seconds according to UL 1577 standards.

Can the secondary side outputs be grounded independently?

Yes, each output can be individually grounded or connected to positive/negative voltage references, allowing flexible half-bridge or dual-driver configurations.