High-voltage power electronics
High-voltage DC/DC converter
The DC/DC converter is a product offering within the Eaton Power Electronics category. A DC/DC converter changes the higher voltage of the battery to lower voltage to power infotainment and safety systems. Eaton has a proven reputation of building highly reliable DC/DC converters and can design custom solutions while leveraging standard production processes.
Clean output power
Enables powering of sensitive load including radios and controllers
Custom design
Tailored configurations leveraging common designs
System flexibility
Accepts wide input voltage range and multiple output voltages
Core features
- Input voltage range 225VDC to 450VDC or 450VDC to 900VDC
- Output voltages of 12VDC, 24VDC or 48VDC
- Liquid-cooled
- IP67 sealed enclosure
- ISO7637-3, ISO 11452-4, ISO 11452-8, IEC 1000-4-2 and CISPR25
- Clean output power able to power sensitive load including radios
and controllers - Module design enables custom configurations to leverage
common designs
Specifications
Need design support?
Work with an Eaton expert to design a unique solution that meets your requirements.
| Parameter | Min. | Typ. | Max. | Unit | Notes & Conditions |
| Input Characteristics | |||||
| Operating input voltage range | 225 | [232-443] | 455 | Vdc | |
| UVP switch off | <225 | 232 | >239 | Vdc | |
| OVP switch off | >430 | 443 | <455 | Vdc | |
| Input reverse polarity protection | Yes | By poka yoke on connector | |||
| Active & passive discharge | 5 120 |
s s |
Active discharge HV < 60V Passive discharge HV < 60V |
||
| Inrush current limitation | No | No inrush current limitation on hv bus | |||
| Output Characteristics | |||||
| Operating voltage | 6 | 14 | 16 | Vdc | Current limited above 14V (power limitation to 3.1kW) |
| Nominal output voltage | 12 | 14 | 16 | Vdc | At ambient temperature +25°C and +65°C Liquid cooling temperature |
| Nominal power | 3.1 | kW | At ambient temperature +25°C and +65°C liquid cooling temperature | ||
| Max operating current | 211 | 222 | 233 | A | Up to 14V output voltage |
| Short circuit current protection | Yes | ||||
| Adjustment of output voltage | CAN | 12 V to 16 V | |||
| Adjustment output current | CAN | ||||
| Output current protection | No | LV battery fuse on vehicle side is needed | |||
| Reverse polarity | Yes | On LV battery connection through reverse polarity parallel diode | |||
| Overvoltage protection (SW1) | >16.6 | Vdc | Switch off the converter, detection within 1s (software protection - response time reduces at higher voltages) restarts if voltage drops below 15 V | ||
| Start-up time | 1.2 | s | This time is the time necessary to the product to deliver the full functionality | ||
| Other Characteristics | |||||
| Efficiency | 92 | 92.7 | ≥94 | % | At 345 Vdc, +25°C ambient temperature and +40°C liquid cooled |
| Over temperature (base plate) | 90 | °C | Switch off and re-start automatically | ||
| Crash signal | Active discharge activated by crash signal received on can bus | ||||
| CAN communication | CAN 2.0B, speed 500kbits/s Diagnostic according UDS and J1939 | ||||
| Insulation Characteristics | |||||
| Insulation voltage (dielectric strength) | 2500 | Vac | HV input / (LV output + can + ground) | ||
| Reliability Characteristics | |||||
| Calculated MTBF (UTEC 80810) | 200 | 10 Hrs | 12h/day, 260d/y ambient components +65°C and +45°C liquid cooled temperature | ||
| Cooling Characteristics | |||||
| Coolant flow rate | 7 | 7 | 10 | l.min-1 | |
| Coolant continuous pressure | 2.5 | bars | |||
| Coolant peak pressure | 3 | bars | |||
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