LM5112Q1SDX/NOPB

Overview

The LM5112Q1SDX/NOPB is a low-side gate driver designed for automotive applications, certified to AEC-Q100 standards. It features a single channel with both inverting and non-inverting inputs, housed in a compact 6-WSON (3x3) package with an exposed pad. The device delivers peak output currents of 7A sourcing and 3A sinking. It operates on a supply voltage range of 3.5V to 14V and supports logic input thresholds of 0.8V (VIL) and 2.3V (VIH). Typical switching performance includes rise and fall times of 14ns and 12ns respectively, ensuring efficient MOSFET control within a junction temperature range of -40°C to 125°C.

Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 qualification standards for robust operation in demanding environments.
• Dual-input configuration providing both inverting and non-inverting signal paths for flexible system integration.
• High-current drive capability with asymmetric peak output ratings optimized for rapid N-channel MOSFET switching.

Applications

• Low-side switching control for power MOSFETs in automotive powertrain systems
• Gate driving stages in DC-DC converters and motor drivers
• General-purpose high-speed switching interfaces requiring automotive certification

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 the required AEC-Q100 grade and thermal characteristics for the intended application environment. Cross-reference the full part number including the Q1 designation to guarantee automotive compliance and functional equivalence.

Selection Notes

Select this component when automotive certification is mandatory and a single-channel low-side driver is required. The dual-input design simplifies logic interfacing by accommodating both inverted and non-inverted control signals without external inversion circuitry. Ensure the application voltage remains within the 3.5V to 14V supply range and that the PCB layout supports the 6-WSON package thermal requirements.

Part Context

This part belongs to the LM5112 family of low-side gate drivers from Texas Instruments. The 'Q1' suffix denotes its qualification for automotive applications, distinguishing it from standard commercial variants. It shares core electrical characteristics with the LM5112 but adheres to stricter automotive reliability standards. The device is part of a broader portfolio of power management ICs designed for high-efficiency energy conversion and control.

Replacement Considerations

LM5112SD/NOPB

FAQ

What is the difference between the inverting and non-inverting inputs?

The device provides separate pins for inverting and non-inverting logic inputs, allowing the user to select the desired signal polarity directly from the controller without additional external components.

Does the Q1 suffix indicate a different function than the standard LM5112?

No, the Q1 suffix indicates that the device is qualified to AEC-Q100 automotive standards. The electrical functionality and pinout remain identical to the commercial LM5112 variant.