PRM48NF480T200A00
200W PRM voltage regulator for FPA, providing regulated output from 38-55V input with dynamic voltage control.
Product Overview
Description
The PRM48NF480T200A00 is a 200W PRM voltage regulator module for Factorized Power Architecture.
Provides regulated output voltage from 48V input with high efficiency and dynamic control capability.
Enables FPA with PRM handling regulation while VTM handles current multiplication.
Product Series
PRM
Primary Application
Factorized Power Architecture
Key Features
- High-efficiency regulation up to 97%
- Dynamic voltage scaling capability
- PMBus communication and control
- Parallel operation with auto-crossover
- Integrated protection features
- Compact VI Chip package
Specifications
| Input Voltage | 38-55V DC |
|---|---|
| Output Voltage | 48V regulated |
| Output Power | 200W |
| Efficiency | Up to 97% |
| Switching Frequency | 1.5MHz |
| Package | VI Chip |
Applications
Factorized Power Architecture
Electronic system design
48V regulated bus generation
Power conversion and supply
Intermediate bus power
Electronic system design
Power system prototyping
Electronic system design
Advanced power architectures
Electronic system design
FAE Expert Insights
"The PRM is the intelligence in Factorized Power Architecture. In a recent system design for a high-performance computing platform, we used PRM modules to create a regulated 48V bus that supplied multiple VTMs for point-of-load conversion. The PMBus interface was invaluable - we could monitor power consumption, adjust bus voltage based on workload, and implement sophisticated power management. The dynamic voltage scaling capability allows reducing bus voltage during low-load periods to improve system efficiency. For anyone building advanced power systems, the PRM/VTM combination is the way to go."
Enables intelligent power management with dynamic voltage scaling in FPA systems
— Sarah Liu, BeiLuo
Frequently Asked Questions
What is dynamic voltage scaling with PRM?
Dynamic voltage scaling (DVS) with PRM: PRM can adjust output voltage dynamically based on control signals; Typical range: 20-100% of rated output voltage; Update rate: Can change voltage in < 1ms; Use cases: Optimize power consumption based on workload; Reduce voltage during idle periods; Implement power saving modes. Implementation: PMBus commands for voltage changes; Analog control voltage input; Predefined voltage profiles. Benefits: 10-30% power savings in variable load applications; Reduced cooling requirements; Extended component life from lower thermal stress.
Contact us for DVS implementation guidance and power savings analysis.
How do I program PRM modules using PMBus?
PMBus programming for PRM modules: Connect PMBus adapter to PRM communication pins; Use Vicor software tools or standard PMBus commands; Programmable parameters: Output voltage setpoint; Fault thresholds and responses; Turn-on/off delays; Enable/disable control. Monitored parameters: Input/output voltage and current; Module temperature; Fault status; Operating hours. PMBus features: Address configuration via pins or programming; Telemetry logging for diagnostics; Firmware updates on select models. Vicor provides comprehensive PMBus documentation and example code.
Contact us for PMBus programming guide and software tool access.
Can PRM modules be paralleled?
Parallel operation of PRM modules: Supported for higher power and redundancy; Auto-crossover feature for automatic load sharing; Synchronized operation for system coordination. Paralleling requirements: Use identical PRM models; Configure matching parameters via PMBus; Proper input/output bus distribution; Communication bus for coordination. Redundancy: N+1 configuration for fault tolerance; ORing protection for bus isolation; Load sharing ensures equal stress. Vicor provides paralleling guidelines and reference designs for multi-module systems.
Contact us for PRM paralleling guidelines and system architecture recommendations.
What is the hold-up time for PRM modules?
PRM hold-up time characteristics: Hold-up time depends on input capacitance and load; Typical internal capacitance provides ~1-2ms hold-up; External capacitors can extend hold-up as needed. Calculating hold-up requirements: Determine maximum acceptable output voltage dip during input interruption; Calculate required energy storage; Add film capacitors at PRM input. Example: For 100ms hold-up at 200W: Energy needed = 200W x 0.1s = 20J; At 48V, capacitance = 2 x 20J / (48V)^2 = 17,000uF. Vicor provides formulas and guidelines for hold-up capacitor selection.
Contact us for hold-up time calculations and capacitor selection guidance.
How does PRM work with VTM in FPA?
PRM and VTM interaction in FPA: PRM provides: Input filtering and surge protection; Output voltage regulation (the dynamic bus voltage); System monitoring and control via PMBus. VTM provides: Fixed-ratio transformation from PRM output; High-current multiplication; Isolation if required. System operation: PRM regulates 48V bus; VTMs draw from 48V bus and transform to load voltage; VTM output follows PRM voltage ratio; System efficiency = PRM_eff x VTM_eff. Benefits: Each module optimized for its function; Flexible scaling with parallel modules; Dynamic voltage positioning for power optimization.
Contact us for FPA design guidance and system architecture recommendations.