NCV887801D1R2G

Overview

The NCV887801D1R2G is an automotive-grade, non-synchronous boost controller designed for start-stop vehicle applications. It maintains regulated output voltage during battery sags by driving an external N-channel MOSFET. The device utilizes peak current mode control with internal slope compensation and features a wide input voltage range of 2 V to 40 V, supporting 45 V load dump. Key specifications include 2% output accuracy over temperature, low quiescent current sleep mode operation, and comprehensive protection against cycle-by-cycle current limits, hiccup-mode overcurrent, and thermal shutdown.

Feature Summary

• Non-synchronous boost topology for maintaining minimum output voltage during cranking and start-stop operations
• Peak current mode control with internal slope compensation for stable regulation
• Automatic enable functionality triggered below the wake-up threshold voltage
• Integrated protection mechanisms including thermal shutdown and hiccup-mode overcurrent protection

Applications

• Automotive start-stop systems requiring regulated voltage through cranking
• Applications mitigating battery voltage sags during engine restart
• Power management circuits demanding high efficiency in sleep modes

Procurement Notes

Verify the specific suffix D1R2G corresponds to the SOIC-8 package and reel/cut tape packaging configuration. Confirm AEC-Q100 qualification status aligns with project requirements. Ensure the ordering part number matches the exact device code for the 01 variant within the NCV8878 series to guarantee correct factory programming of the wake-up threshold.

Selection Notes

Select this component when a non-synchronous boost solution is required for automotive start-stop environments. It is suitable for designs needing automatic enable below wake-up thresholds and robust protection against load dump events up to 45 V. Consider the external N-channel MOSFET drive capability and the need for externally adjustable frequency operation if precise timing synchronization is necessary.

Part Context

This part belongs to the NCV8878 family of automotive-grade power management ICs. It shares architectural similarities with variants like the NCV8877 series but is distinct in its specific feature set and regulatory compliance for automotive use. The NCV prefix indicates unique site and control change requirements mandated for automotive applications.

Replacement Considerations

Direct substitutes within the same family include the NCV887811D1R2G, which offers similar boost control capabilities with potentially different factory-programmed parameters. Verify pinout compatibility and electrical specifications before substitution.