NCV8440ASTT1G

Overview

The NCV8440ASTT1G is a protected power MOSFET featuring an N-channel enhancement mode configuration in a SOT-223 package. It supports a continuous drain current of 2.6A with a breakdown voltage of 52V and on-resistance of 180 mOhms. The device includes internal gate-source diode clamping for ESD protection rated at 5000V human model. It operates within a temperature range of -55°C to +150°C, dissipating up to 1.69W. Key electrical parameters include a threshold voltage of 1.1V and gate charge of 4.5nC.

Feature Summary

• Integrated gate-source diode clamp provides robust electrostatic discharge protection
• Active overvoltage clamping enhances stability during transient load conditions
• Internal series gate resistor optimizes switching performance and reduces noise

Applications

• Solenoid valve drivers
• Lighting system drivers
• Small motor drives

Procurement Notes

Verify the specific ordering suffix matches the required packaging format, such as tape and reel or cut tape, as indicated by the manufacturer's standard packaging configurations. Confirm that the component meets AEC-Q100 automotive qualification standards if the application requires automotive-grade reliability. Ensure the datasheet version aligns with the intended design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring integrated overvoltage protection and ESD immunity for low-side switching applications. The logic-level gate drive capability simplifies control interface requirements compared to standard MOSFETs. Consider the thermal dissipation limits and package constraints when evaluating suitability for high-density PCB layouts in automotive or industrial environments.

Part Context

This part belongs to the NCV8440 family of protected power MOSFETs designed by onsemi. These devices are engineered specifically for automotive and industrial markets where reliability under harsh electrical conditions is critical. The family offers scalable on-resistance options while maintaining consistent protection features across different current ratings.

Replacement Considerations

Direct substitutes within the same product line include the NCV8440A variant. Designers should verify pin compatibility and electrical parameter equivalence before swapping components to ensure circuit integrity without redesign.