BSC7xx
BSC7xx: HV to LV DC/DC converter for 400V & 800V HV-Batteries
Technical specifications
preliminary
| HV voltage range | 190…480 V or 350…890 V |
| LV nominal voltage | 14.0 V or 28.0 V |
| LV voltage range | 10…15.5 V or 20…31 V |
| Nominal power (buck) | 3…4 kW |
| LV peak current (buck) | 171 A (4.8 kW @28 V) or 300 A (4.2 kW @14 V) |
| LV max./cont. current (boost) | 50 A (28 V) or 100 A (14 V) |
| Efficiency weighted | >92 % |
| IP protection | IP6K9K, IP6K7 |
| Device control | CAN 2.0 |
| Cooling system | Water cooling |
| Weight | From 3 to 4 kg |
With BSC7, BRUSA continues addressing the needs from its customers in the best possible way by offering on the market one of the most polyvalent HV to LV DC/DC conversion solution ever developed.
The galvanically isolated device focuses on increased environmental capabilities and operation lifetime to address a wide spectrum of applications: cars, light-, medium- or heavy-duty trucks, the BSC7 reaches a unique versatility. The regular buck operations with outstanding performance are provided along with great additional features like active discharge or bidirectionality, which enables support of additional applications like DC Link pre-charge or HV-Battery emergency charging via jump start cable.
features
- Extremely compact and lightweight construction
- Peak current for short increased LV load
- Bidirectionality for boost capabilities (e.g. DC Link pre-charge)
- Galvanic isolation between HV and LV sides
- Active discharge using buck conversion & MOSFETs switching losses
- Functional Safety functions acc. ISO-26262
- Cybersecurity acc. ISO-21434
