LM5112Q1SD/NOPB

Overview

The LM5112Q1SD/NOPB is a single-channel, low-side MOSFET gate driver designed for automotive applications. It features both inverting and non-inverting logic inputs to accommodate various control schemes. The device delivers peak output currents of 3A source and 7A sink, enabling fast switching of N-channel power MOSFETs. It operates within a supply voltage range of 3.5V to 14V and supports junction temperatures from -40°C to 125°C. Typical propagation delays are characterized by rise and fall times of 14ns and 12ns, respectively. The component is housed in a compact 6-WSON (3x3mm) package with an exposed pad for thermal management.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Dual input configuration providing both inverting and non-inverting signal paths
• High peak current drive capability for efficient N-channel MOSFET switching

Applications

• Low-side switching in automotive DC-DC converters
• Motor control circuits requiring robust gate driving
• General-purpose power stage drivers in vehicle electronics

Procurement Notes

Verify the specific suffix 'Q1' confirms automotive qualification status and 'NOPB' indicates lead-free/RoHS compliance. Confirm the package marking matches the 6-WSON form factor. Ensure the supplier provides traceability documentation required for automotive supply chains. Cross-reference the manufacturer part number against official Texas Instruments databases to avoid counterfeit components.

Selection Notes

Select this component when a single low-side driver with dual polarity inputs is required for automotive systems. It is suitable for designs needing high peak sink current to minimize turn-off delay. Consider the 6-WSON package constraints for PCB layout and thermal dissipation. Verify that the input logic levels align with the controller's output specifications within the operating temperature range.

Part Context

This part belongs to the LM5112 family of low-side gate drivers. The Q1 designation distinguishes it as an automotive-qualified variant compared to standard industrial versions. It shares functional similarities with other single-channel drivers but offers specific automotive reliability certifications. The NOPB suffix denotes a lead-free finish compliant with international environmental directives.

Replacement Considerations

Direct substitutes include LM5112SD/NOPB for non-automotive use or LM5114ASD/NOPB for higher speed requirements. Verify pin compatibility and electrical parameters before substitution. Automotive replacements must maintain AEC-Q100 certification.