6KW High-Power Onboard DC/DC Converter | 48V Output for Heavy-Duty EVs & Industrial | HLF4500-D48
Product Promotion Datasheet: HLF4500-D48 4.5KW High-Power Onboard DC/DC Converter
Overview
The HLF4500-D48 is a robust, industrial-grade 4.5KW DC/DC converter engineered for demanding applications in heavy-duty new energy vehicles (NEVs) and medium-to-large scale telecommunications infrastructure. It efficiently converts a wide high-voltage input (280–820VDC) into a stable, adjustable 48VDC output, delivering reliable power for auxiliary and control systems. Designed with automotive-grade robustness, advanced thermal management, and comprehensive protection, it ensures dependable operation under challenging conditions.
Key Features
Optimized Power & High Efficiency: 4.5KW continuous output with ≥96.5% efficiency, balancing high performance with excellent thermal management for energy-intensive applications.
Wide Input Voltage Range: 280–820VDC compatibility ensures flexible integration with various high-voltage battery and power systems.
Adjustable 48VDC Output: Provides stable, configurable low-voltage power for vehicle electronics, industrial controls, and communication equipment.
Complete Protection Suite: Includes input/output under/over voltage protection, overcurrent protection, temperature protection (with intelligent derating), and fuse safety.
CAN Communication: Enables real-time system monitoring, diagnostics, and intelligent power management for connected systems.
Automotive-Grade Durability: Components are selected and tested to withstand extreme vibration, temperature fluctuations, and harsh operational environments.
Advanced Thermal Design: Incorporates optimized heat dissipation (dimensions: 260*200*52mm) for efficient cooling under sustained load.
Applications
Medium/Heavy-Duty New Energy Vehicles: Electric delivery vans, mid-size buses, and utility trucks requiring reliable high-power auxiliary systems.
Telecom Base Stations & Edge Data Hubs: Provides efficient DC power conversion for 5G RRUs, micro-data centers, and backup power systems.
Industrial & Renewable Energy Systems: Solar power combiners, mobile charging units, and other distributed DC power distribution applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HLF4500-D48 |
| Input Voltage | 280–820 VDC |
| Output Voltage | 48 VDC (adjustable) |
| Output Power | 4500W (4.5KW) |
| Efficiency | ≥96.5% |
| Communication | CAN 2.0 |
| Protections | Input UVP/OVP, Output UVP/OVP/OCP, Temperature Protection, Fuse |
| Cooling Method | Heat sink with enhanced fin design (forced air optional) |
| Vibration Resistance | Rubber damping pads, reinforced mounting |
| Dimensions (L×W×H) | 260 × 200 × 52 mm |
| Operating Temperature | -40°C to +85°C (extended automotive range) |
| Primary Application | Medium/Heavy-Duty EVs, Telecom Infrastructure, Industrial Systems |
Why Choose HLF4500-D48?
✅ Optimized Power Density – Delivers 4.5KW in a thermally efficient, compact design.
✅ Energy Efficient Operation – High efficiency reduces operational costs and simplifies thermal management.
✅ Smart & Connected – CAN communication supports advanced monitoring, control, and predictive maintenance.
✅ Fully Protected & Robust – Multi-layer electrical, thermal, and mechanical safeguards ensure system safety and longevity.
✅ Built for Demanding Environments – Automotive-grade construction guarantees reliable performance under stress.
Ordering & Support
For technical datasheets, customization requests, or volume pricing, please contact our sales team with model number: HLF4500-D48.