LM5109BMA

Overview

The LM5109BMA is a high-voltage half-bridge gate driver manufactured by Texas Instruments. It provides independent high-side and low-side outputs with a peak output current of 1 A. The device operates within a supply voltage range of 8 V to 14 V and supports TTL logic inputs. It features fast switching characteristics, including rise and fall times of 15 ns, and propagation delays up to 32 ns. The component functions across an extended temperature range from -40 °C to +125 °C and is housed in an SOIC-8 package.

Feature Summary

• Independent high-side and low-side drivers for half-bridge configurations
• High peak output current capability of 1 A
• Fast switching performance with 15 ns rise and fall times
• TTL-compatible input logic levels

Applications

• High-voltage power supply designs
• Motor control systems
• Industrial automation equipment

Procurement Notes

Verify the specific suffix 'MA' against the manufacturer's official datasheet to confirm the exact tape-and-reel or tube packaging configuration. Ensure the RoHS status aligns with project requirements, as indicated by the NOPB designation in related variants. Confirm that the SOIC-8 package dimensions match the target PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when a robust half-bridge driver with 1 A peak current is required for high-voltage applications. The wide operating temperature range makes it suitable for industrial environments. Verify that the 8 V to 14 V supply voltage range matches the system's available power rails and that the TTL input compatibility fits the control logic interface.

Part Context

This part belongs to the LM5109 family of high-voltage half-bridge gate drivers from Texas Instruments. The family includes variants such as LM5109BMAX/NOPB and LM5109BSDX, which share similar electrical specifications but differ in packaging options like SOIC-8 and WSON. These drivers are designed for driving MOSFETs in demanding power conversion topologies.

Replacement Considerations

LM5109BMAX/NOPB shares identical electrical specifications and pinout compatibility.