LM5109BMAX/NOPB

Overview

The LM5109BMAX/NOPB is a high-voltage half-bridge gate driver manufactured by Texas Instruments. It features a peak output current of 1 A and operates within a supply voltage range of 8 V to 14 V. The device provides independent high-side and low-side outputs with rise and fall times of 15 ns each. It is housed in an SOIC-8 surface-mount package and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Provides independent high-side and low-side drive channels for half-bridge configurations
• Capable of delivering 1 A peak output current to switch power MOSFETs
• Supports operation at high voltages up to 100 V on the floating channel

Applications

• High-voltage motor control systems
• Industrial power conversion circuits
• Inverter bridge driving applications

Procurement Notes

Verify that the specific part number matches the required SOIC-8 package and NOPB lead-free designation. Confirm that the application circuit supports the 8 V to 14 V supply voltage range and handles the 1 A peak current requirements. Ensure thermal management aligns with the -40 °C to +125 °C operating temperature specifications provided in the official datasheet.

Selection Notes

Select this component when a robust half-bridge driver is needed for high-voltage environments. The 1 A peak current capability ensures fast switching of power devices. The wide operating temperature range makes it suitable for demanding industrial conditions. Verify compatibility with the target MOSFET gate charge requirements before finalizing the design.

Part Context

This device belongs to the LM5109 family of high-voltage gate drivers from Texas Instruments. It is designed specifically for driving high-side and low-side N-channel power MOSFETs in half-bridge topologies. The MAX suffix indicates the SOIC-8 package variant, while NOPB denotes a lead-free and RoHS-compliant product version.

Replacement Considerations

LM5109BMAX: Non-RoHS compliant version of the same functional device.