The TLF35584QVVS2XUMA2, developed by Infineon Technologies, is a high-performance automotive-grade power management IC (PMIC) designed for safety-critical applications in automotive and industrial systems. It integrates multi-voltage regulators, advanced safety features, and robust monitoring capabilities within a 48-pin VQFN package. Operating from an input voltage range of 3V to 40V, it supports a -40°C to 150°C junction temperature, ensuring reliability in harsh environments. The device is certified to ISO 26262 ASIL-D, making it ideal for automotive functional safety requirements.

Key Features

• Multi-Output Regulators:
• Pre-regulators: Synchronous step-up/step-down converters for intermediate voltage regulation.
• Post-regulators: Includes LDOs (e.g., 3.3V/5V for μC, communications, and sensors) and voltage trackers for ADC/reference供电.
• External Core Regulator Support: Enables flexible core voltage control via optional external LDOs.
• Safety & Monitoring:
• Dual Watchdog Timers: Independent Window Watchdog (WWD) and Functional Watchdog (FWD) for fault detection and system reset.
• Voltage Monitoring: UV/OV protection, fault detection, and error signaling for critical rails.
• Safety State Control: Programmable safety states with 2 programmable delay signals for fault response.
• Power Efficiency:
• Adaptive Switching Frequencies: Optimized for efficiency and compact filter design.
• Low Quiescent Current: Reduces power consumption in standby/sleep modes.
• Communication & Control:
• 16-bit SPI Interface for configuration and diagnostics.
• Power Sequencing: Automated control of power-up/down sequences.

Application Areas

The TLF35584QVVS2XUMA2 is deployed in:

• Automotive Systems: Engine management, transmission control, xEV battery management, and ADAS domains.
• Safety-Critical Applications: Electric power steering, braking systems, and chassis control.
• Industrial Control: Industrial automation, motor drives, and sensor networks requiring functional safety.
• Power Management: DC-DC converters, inverters, and automotive域控制器.

Summary

The TLF35584QVVS2XUMA2 is a feature-rich PMIC combining advanced power regulation, functional safety compliance, and robust monitoring. Its wide input voltage range, dual watchdog architecture, and ASIL-D certification make it a cornerstone for automotive and industrial systems demanding high reliability and safety. With integrated diagnostics and flexible configuration via SPI, it simplifies design complexity while ensuring compliance with严苛的电气和安全标准. Its compact VQFN package and wide temperature range further enhance its suitability for space-constrained, high-temperature environments.