L9779WDM-TR

Power Management - Specialized Overview

The L9779WDM-TR is a multifunctional integrated circuit designed for automotive engine management systems, manufactured by STMicroelectronics. It operates within a voltage range of 4.15V to 40V and supports a maximum operating temperature of 125°C. The device utilizes BCD6S technology and features a 64-terminal HiQUAD (14x14) package. Key electrical functions include a 5V logic regulator, a 3.3V logic regulator, and a 5V tracking sensor supply. It incorporates smart reset capabilities and power latch functionality with Secure Engine Off (SEO). The component is AEC-Q100 qualified for automotive reliability.

Power Management - Specialized Feature Summary

• Integrates multiple voltage regulators including 5V and 3.3V logic supplies alongside a tracking sensor supply.
• Features Smart Reset function and Power Latch with Secure Engine Off capability for enhanced system safety.
• Designed specifically for automotive engine management environments using robust BCD6S technology.

Power Management - Specialized Applications

• Automotive engine management systems
• Power management in vehicle control units
• Engine control modules requiring secure shutdown functions

Power Management - Specialized Procurement Notes

Verify the specific suffix 'M' in the part number L9779WDM-TR against official STMicroelectronics documentation to confirm pinout and functional compatibility. Ensure the procurement source provides valid RoHS compliance data and AEC-Q100 qualification certificates. Confirm that the reel packaging matches the required quantity specifications for your production line. Cross-reference the datasheet revision date to ensure access to the latest technical updates and errata sheets.

Power Management - Specialized Selection Notes

Select this component when designing engine management systems requiring an integrated solution for voltage regulation and secure power control. The HiQUAD package offers a compact footprint suitable for space-constrained automotive PCBs. Consider the 40V input tolerance for standard automotive electrical architectures. Verify thermal performance requirements against the 125°C junction temperature limit during initial design phases.

Power Management - Specialized Part Context

This component belongs to the L9779WD series of multifunction ICs from STMicroelectronics. These devices are specialized PMICs tailored for harsh automotive environments. The series leverages advanced semiconductor processes to combine power management and control logic into a single chip, reducing system complexity and component count in modern engine control applications.

Power Management - Specialized Replacement Considerations

The L9779WD-TR is a related variant within the same family. Verify if the 'M' suffix denotes a specific tape-and-reel or package variation that impacts mechanical fit or electrical characteristics before substitution. Consult the official replacement guide for any functional differences between the WD and WDM variants.

Power Management - Specialized FAQ

What is the maximum operating temperature for the L9779WDM-TR?

The maximum operating temperature is 125°C.

Does the L9779WDM-TR support Secure Engine Off functionality?

Yes, it includes a power latch with Secure Engine Off (SEO) functionality.