LM2103DR

Overview

The LM2103DR is a half-bridge gate driver manufactured by Texas Instruments, designed for high-voltage power switching applications. It operates within a supply voltage range of 9 V to 18 V and features an inverting logic configuration. The device provides peak output currents of 0.5 A source and 0.8 A sink capabilities. Key timing parameters include a fall time of 18 ns. It is housed in an SOIC-8 surface-mount package and supports operation across an extended temperature range from -40 °C to +125 °C.

Feature Summary

• Supports high-voltage half-bridge configurations with up to 107 V capability
• Provides asymmetric drive strength with 0.5 A source and 0.8 A sink current
• Features fast switching performance with an 18 ns fall time
• Compatible with standard CMOS and TTL input logic levels

Applications

• High-side and low-side MOSFET driving in power supplies
• Motor control systems requiring robust gate drive signals
• Industrial inverters and converters operating at elevated voltages

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets RoHS compliance requirements as stated in the datasheet. Cross-reference the full part number with Texas Instruments' current product status to avoid obsolete or discontinued variants during procurement planning.

Selection Notes

Select this component when a single-channel half-bridge driver is required for high-voltage applications up to 107 V. The inverting configuration suits designs where logical input states must be reversed for proper bridge operation. Ensure the application demands the specific 0.5 A/0.8 A asymmetrical current profile and fits within the 9 V to 18 V supply constraint.

Part Context

The LM2103DR belongs to the LM2103 series of gate drivers from Texas Instruments. This series focuses on providing reliable isolation and drive capabilities for power semiconductors. The DR suffix indicates the SOIC-8 surface-mount package variant, distinguishing it from other physical form factors available within the same functional family.

Replacement Considerations

Consult the official cross-reference data for direct pin-compatible alternatives. Verify electrical compatibility regarding supply voltage ranges and output current capabilities before substituting.