L9474N

Special Purpose Regulators Overview

The L9474N is a monolithic multifunction generator voltage regulator designed for automotive applications. It regulates the output of an alternator and features an RVC interface. The device operates with an input voltage range of 8 V to 16 V. It supports a minimum operating temperature of -35 C and a maximum operating temperature of +150 C.

Special Purpose Regulators Feature Summary

• High side field driver
• Thermal protection
• Field driver short circuit protection
• Overvoltage protection

Special Purpose Regulators Applications

• Automotive applications
• Alternator regulation
• Power supply systems

Special Purpose Regulators Procurement Notes

Verify component status as the L9474N is listed as obsolete by manufacturers. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing automotive electrical architectures before procurement. Check for alternative components if long-term supply stability is required.

Special Purpose Regulators Selection Notes

Select this component for automotive alternator control requiring integrated thermal and short-circuit protection. The wide operating temperature range suits harsh engine environments. Verify that the RVC interface meets system communication requirements. Consider obsolescence status when designing new products.

Special Purpose Regulators Part Context

This part belongs to STMicroelectronics' specialized power management ICs for automotive generators. It integrates voltage regulation with field driver capabilities. The design targets reliability in high-temperature automotive under-hood conditions. It serves as a dedicated solution for alternator control modules.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, verify functional equivalents with matching pinouts and electrical specifications from current product lines.