NCP51100ASNT1G

Overview

The NCP51100ASNT1G is a low-side gate driver designed for driving N-channel enhancement-mode MOSFETs. It features a MillerDrive architecture to provide high peak current during the Miller plateau stage, minimizing switching losses while maintaining rail-to-rail voltage swing and reverse current capability. The device includes TTL input thresholds and internal under-voltage lockout (UVLO) that holds the output low until supply voltage reaches the operating range. Packaged in a standard 5-pin SOT23, it supports high-frequency power converter designs by enabling fast MOSFET switching performance.

Feature Summary

• MillerDrive architecture delivers high peak current during the Miller plateau phase to reduce switching loss
• Internal under-voltage lockout maintains output low until supply voltage is within the specified operating range
• TTL-compatible input thresholds facilitate direct interfacing with digital control logic

Applications

• Low-side switching applications for N-channel enhancement-mode MOSFETs
• High-frequency power converter designs requiring minimized switching losses
• Systems utilizing TTL-compatible control signals for gate drive interface

Procurement Notes

Verify the specific suffix 'ASNT1G' against official onsemi documentation to confirm pinout, thermal characteristics, and tape-and-reel specifications. Ensure the selected package variant matches the PCB footprint requirements. Cross-reference the datasheet revision date to validate electrical parameters and ordering information accuracy before finalizing procurement.

Selection Notes

Select this component when designing low-side drivers for N-channel MOSFETs requiring fast switching speeds and minimal Miller effect impact. The TTL input threshold compatibility makes it suitable for systems driven by standard digital logic. Consider the SOT23-5 package constraints regarding thermal dissipation and board space availability relative to the expected peak current demands of the application.

Part Context

This part belongs to the NCP51100 series of gate drivers from onsemi. The series focuses on optimizing switching performance for power converters through specialized output stages. The NCP51100 specifically targets low-side configurations, offering a compact solution for applications where space efficiency and switching speed are critical design parameters.

Replacement Considerations

Consult official substitution guides for compatible low-side gate drivers with similar SOT23-5 packaging and UVLO characteristics. Verify that alternative components support the required TTL input thresholds and MillerDrive-like peak current capabilities to maintain circuit performance integrity.