LM2105DR

Full Half-Bridge (H Bridge) Drivers Overview

The LM2105DR is a half-bridge gate driver manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It operates with a supply voltage range of 5 V to 18 V and supports CMOS and TTL logic inputs. The device features a single driver with one output, designed for driving two N-channel MOSFETs. Key electrical parameters include a peak source current of 0.5 A and a peak sink current of 0.8 A. Propagation delay characteristics show a rise time of 28 ns and a fall time of 18 ns. The component functions within a temperature range of -40 C to +125 C and draws a working supply current of 560 uA.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• High-side and low-side driver configuration with a 105 V startup voltage capability
• Low propagation delay with matched rise and fall edge timing for reliable signal control
• CMOS and TTL compatible input logic levels

Full Half-Bridge (H Bridge) Drivers Applications

• Driving N-channel MOSFETs in power conversion circuits
• Evaluation of high-side and low-side gate drive performance
• Assessment of bootstrap biasing and negative voltage handling

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the specific ordering suffix to ensure the correct tape and reel packaging format matches the production requirements. Confirm that the SOIC-8 package dimensions align with the target PCB footprint. Ensure the supply voltage specifications meet the operational needs of the intended circuit design before finalizing the procurement order.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component when a dedicated half-bridge driver with high voltage startup capability is required. The LM2105DR is suitable for applications needing precise timing between high-side and low-side outputs. Consider the 0.5 A source and 0.8 A sink currents for driving moderate capacitance loads efficiently.

Full Half-Bridge (H Bridge) Drivers Part Context

The LM2105DR belongs to the LM2105 series of gate drivers from Texas Instruments. This series focuses on providing robust driving capabilities for power switches with integrated protection features. The DR suffix indicates the SOIC-8 surface-mount package variant, distinguishing it from other package options within the same functional family.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

The LM2105EVM evaluation module serves as a testing tool rather than a direct replacement part. No other public substitute part numbers are confirmed for direct pin-to-pin or functional replacement.