The VTM Automotive Series features AEC-Q100 qualified Vicor Transformer Modules designed for automotive Factorized Power Architecture (FPA) systems. These modules provide current multiplication with galvanic isolation when used with PRMs (Primary Regulated Modules), delivering high current at low voltage from an intermediate bus voltage with automotive-grade reliability.
Overview
The VTM Automotive Series represents Vicor's solution for current multiplication with galvanic isolation in automotive Factorized Power Architecture (FPA) systems.
VTMs (Vicor Transformer Modules) work in conjunction with PRMs (Primary Regulated Modules) to create a complete power solution. The VTM provides current multiplication and isolation, while the PRM provides regulation and power factor correction.
Key Features
AEC-Q100 Qualified
Full AEC-Q100 qualification ensures reliability and performance in harsh automotive environments with extreme temperature and vibration.
Current Multiplication
VTM modules multiply current while reducing voltage based on the turns ratio, ideal for automotive high-current applications.
Galvanic Isolation
Provides safety isolation and noise immunity with high voltage standoff between input and output in automotive environments.
Automotive-Grade Reliability
Engineered and tested to meet automotive industry standards for vibration, shock, temperature range, and electromagnetic compatibility.
Technical Specifications
| Model | Power Range | Efficiency | Input Voltage | Output Voltage/Current | Package | Applications |
|---|---|---|---|---|---|---|
| VTM4848015-H | 300W | 98.0% | 42-54V | 1:1 | VIA | 48V automotive systems |
| VTM4824030-H | 600W | 98.2% | 42-54V | 2:1 | VIA | 48V to 24V automotive |
| VTM4812046-H | 1000W | 98.1% | 42-54V | 4:1 | VIA | 48V to 12V automotive |
| VTM2412046-H | 1000W | 97.9% | 21-27V | 2:1 | VIA | 24V automotive systems |
| VTM1206046-H | 500W | 97.7% | 10.5-13.5V | 2:1 | VIA | 12V automotive systems |
Applications
VTM Automotive modules are optimized for automotive applications requiring high current at low voltage with galvanic isolation. Common applications include:
48V Mild Hybrid
Current multiplication for 48V to 12V conversion in mild hybrid vehicle power systems with galvanic isolation.
Electric Vehicle Power
High-current isolated power delivery in electric vehicle battery management and charging systems.
Automotive Electronics
Isolated power supplies for automotive control units, safety systems, and electric power steering requiring high current.
Design Considerations
Factorized Power Architecture
VTMs must be used with PRMs to form a complete power solution. The PRM provides regulation to the intermediate bus voltage, while the VTM provides current multiplication and isolation to the load. The output voltage of the system is determined by both the PRM regulation and the VTM turns ratio.
Automotive Environment
VTM Automotive modules are qualified for automotive temperature ranges (-40°C to +105°C) and tested for vibration, shock, and EMC compliance. Design must ensure proper derating in high-temperature environments to maintain reliability.
System Integration
VTM Automotive modules excel in applications where you need isolated, high-current power delivery with preserved dynamics in automotive environments. They are ideal for automotive FPA implementations.
Frequently Asked Questions
How do VTMs differ from traditional transformers?
VTMs are active transformer modules that operate at high frequency with minimal losses, achieving very high efficiency and power density. They are designed specifically for FPA systems and provide current multiplication with galvanic isolation.
What is the relationship between PRM and VTM in FPA?
The PRM provides regulation to an intermediate bus voltage (typically 48V), while the VTM provides current multiplication and isolation to the load. The output voltage is determined by the PRM regulation and the VTM turns ratio.
What does AEC-Q100 qualification mean?
AEC-Q100 is an industry-standard qualification for integrated circuits in automotive applications. It includes tests for temperature, humidity, vibration, and electromagnetic compatibility.
Related Products
DCM Modules
Fixed-ratio bus converters with galvanic isolation for voltage transformation without regulation.
BCM Modules
Current multiplication bus converters with bidirectional power flow for non-isolated applications.
VTM Modules
Vicor Transformer Modules for current multiplication with isolation in FPA systems.