MAX5056BASA+

Overview

The MAX5056BASA+ is a dual low-side MOSFET gate driver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 4V to 15V and delivers a peak output current of 4A. The device features fast switching characteristics with a rise time of 32ns and a fall time of 26ns. It includes protection mechanisms such as under-voltage lockout and interleaved conduction protection. The component is housed in an 8-pin SOIC package and supports PWM input logic.

Feature Summary

• Dual low-side configuration for driving two N-channel MOSFETs simultaneously
• Integrated interleaved conduction protection to prevent shoot-through
• Supply-independent three-state PWM input logic compatibility
• Under-voltage protection ensures reliable operation during power transitions

Applications

• High-frequency DC-DC converter topologies
• Synchronous rectification circuits
• Motor control systems requiring precise gate drive timing
• Power management modules utilizing low-side switching

Procurement Notes

Verify the specific suffix (+) indicates lead-free compliance per RoHS standards. Confirm the package variant matches the required PCB footprint, as SOIC-8 dimensions are critical for assembly. Check manufacturer documentation for any recent lifecycle status changes or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when dual low-side driving is required with minimal propagation delay. Ensure the application voltage does not exceed the 15V maximum supply limit. Consider the 4A peak current capability against the total gate charge of the target MOSFETs to ensure adequate switching speed without excessive thermal stress on the driver IC.

Part Context

This part belongs to the MAX5056 series of gate drivers designed for high-efficiency power conversion. It complements other Maxim Integrated PMIC solutions by providing robust, isolated-like control signals for synchronous rectifiers. The device integrates safety features typically found in higher-cost discrete solutions into a compact surface-mount package.

Replacement Considerations

Direct substitutes may include other dual low-side drivers from the same family with compatible pinouts. Verify that alternative parts support the same 4A output current and interleaved protection features to maintain system stability and efficiency.