Overview
The TLF35584QVVS2 is a multiple output system supply power management integrated circuit (PMIC) designed by Infineon Technologies for safety-relevant applications. This PMIC is optimized to supply power to microcontrollers (μC), transceivers, and sensors, particularly in automotive and other safety-critical systems. It features an efficient and flexible pre-/post-regulator concept that operates over a wide input voltage range, enhancing efficiency and allowing the use of small filter components. The device is available in a thermally enhanced VQFN-48 package, suitable for automated optical inspection.
Key Specifications
| Parameter | Description |
|---|---|
| Package | VQFN-48 (QV-version), thermally enhanced |
| Input Voltage Range | Wide input voltage range (specific values not specified in sources) |
| Output Voltages | 5.0 V and 3.3 V for μC, transceivers, and sensors |
| Regulator Concept | Pre-/post-regulator: boost, buck, LDOs, and trackers |
| Safety Features | UV/OV-monitoring, flexible watchdogs, error-monitoring, safe state controller with 2 outputs, BIST |
| Temperature Range | Wide temperature range (specific values not specified in sources) |
| Compliance | PRO-SIL™ ISO26262-compliant, supports ASIL-D on system level |
Key Features
- Pre-/post-regulator concept: Boost and buck/LDOs and trackers for μC (main, ADC/reference, StBy), transceivers, and sensors.
- Integration of functional safety: Features supporting ASIL-D, including UV/OV-monitoring, flexible watchdogs, error-monitoring, safe state controller with 2 outputs, and built-in self-test (BIST).
- Efficiency and flexibility: Wide switching frequency range optimizes efficiency and filter components.
- Dedicated reference-regulator: Supplies the ADC independently and tracks the two sensor-supplies.
- Standby and internal supplies: Standby LDO and internal supplies for various system needs.
Applications
- Powertrain: Engine Management, Transmission, Transfer Case, Integrated Starter Generator.
- xEV (Electric Vehicles): Battery Management, Inverter, DCDC, Charger.
- Chassis/Safety: Electrical Power Steering, Electr. Steering Column Lock, Braking, Electr. Parking Brake, Active Suspension, Chassis Control, Domain Control, ADAS Domain Control.
Q & A
- What is the primary function of the TLF35584QVVS2?
The TLF35584QVVS2 is a multiple output system supply PMIC designed to power microcontrollers, transceivers, and sensors in safety-relevant applications.
- What are the key safety features of the TLF35584QVVS2?
The device includes UV/OV-monitoring, flexible watchdogs, error-monitoring, a safe state controller with 2 outputs, and built-in self-test (BIST) to support ASIL-D safety integrity.
- What package options are available for the TLF35584QVVS2?
The device is available in a thermally enhanced VQFN-48 package.
- What are the typical output voltages provided by the TLF35584QVVS2?
The device provides 5.0 V and 3.3 V outputs for μC, transceivers, and sensors.
- Is the TLF35584QVVS2 compliant with any specific safety standards?
Yes, it is PRO-SIL™ ISO26262-compliant and supports ASIL-D on system level.
- What is the purpose of the pre-/post-regulator concept in the TLF35584QVVS2?
The pre-/post-regulator concept includes boost, buck, LDOs, and trackers to efficiently supply power to various components over a wide input voltage range.
- How does the TLF35584QVVS2 optimize efficiency and filter components?
The device optimizes efficiency and filter components through a wide switching frequency range.
- What is the role of the dedicated reference-regulator in the TLF35584QVVS2?
The dedicated reference-regulator supplies the ADC independently and tracks the two sensor-supplies.
- What are some of the potential applications of the TLF35584QVVS2 in the automotive sector?
Potential applications include Powertrain, xEV, and Chassis/Safety systems such as Engine Management, Battery Management, Electrical Power Steering, and ADAS Domain Control.
- How can the TLF35584QVVS2 be tested and evaluated?
The TLF35584QVVS2 can be tested using the TLF35584QVVS2 evaluation board, which allows for the testing of all power supply rails and safety-related functions.
