LM5107SDX

Overview

The LM5107SDX is a half-bridge gate driver manufactured by Texas Instruments, designed for driving N-channel MOSFETs. It operates within a supply voltage range of 8V to 14V and supports bootstrap high-side voltages up to 118V. The device features non-inverting inputs with logic thresholds of 0.8V (VIL) and 2.2V (VIH). Peak output currents are specified at 1.4A source and sink. Typical rise and fall times are 15ns each. It is housed in an 8-pin LLP package and functions across a junction temperature range of -40°C to +125°C.

Feature Summary

• Provides synchronous half-bridge drive capability for N-channel power MOSFETs
• Supports high-side operation with bootstrap voltage ratings up to 118V
• Features fast switching performance with typical 15ns rise and fall times
• Operates with standard TTL-compatible logic input thresholds

Applications

• Synchronous buck converter topologies
• High-side and low-side MOSFET gate driving
• Industrial motor control systems
• Power supply designs requiring isolated or floating gate drive

Procurement Notes

Verify the specific suffix against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the component meets RoHS compliance standards if required by your manufacturing process. Cross-reference the package marking with the manufacturer's identification guide to prevent counterfeit parts. Confirm availability through authorized distributors only.

Selection Notes

Select this component when designing circuits that require robust half-bridge driving with high voltage tolerance. Consider the 1.4A peak current capability for driving moderate-sized MOSFETs efficiently. Evaluate the 15ns switching speed against your system's EMI constraints. Ensure the 8V to 14V supply range aligns with your available control logic and bias supplies.

Part Context

This part belongs to the LM510x series of gate drivers from Texas Instruments, which focuses on high-voltage half-bridge applications. It shares functional similarities with other members like the LM5106 and LM5107MA but differs in package type and specific electrical parameters. The series is targeted at industrial and automotive power management solutions requiring reliable MOSFET switching.

Replacement Considerations

Direct substitutes include LM5107SD/NOPB and LM5107MA/NOPB. Verify package compatibility and electrical specifications before substitution. Ensure the replacement part maintains the same bootstrap voltage rating and output current capabilities.