LM5067 负电压热插拔控制器可在从带电系统背板或其他“热插拔”电源插入和移除电路板期间,为电源连接提供智能控制,并通过提供浪涌电流控制来限制系统电压下降和瞬变。外部串行导通 N 沟道 MOSFET 中的电流限制和功率耗散可进行编程,从而确保其在安全工作区 (SOA) 内工作。此外,LM5067 可监控过流和过压状况,从而提供电路保护。当输出电压接近输入电压时,会显示电源正常输出。输入欠压和过压锁定电平和迟滞,以及故障监测时间均可进行编程。LM5067-1 在检测到故障之后闭锁,同时 LM5067-2 以固定占空比自动尝试重启。LM5067 采用 10 引脚 VSSOP 封装和 14 引脚 SOIC 封装。
| FET | External |
| Vin (min) (V) | -80 |
| Vin (max) (V) | -9 |
| Vabsmax_cont (V) | -100 |
| Current limit (min) (A) | 0.01 |
| Current limit (max) (A) | 500 |
| Overcurrent response | Circuit breaker, current limiting |
| Fault response | Auto-retry, Latch-off |
| Soft start | Adjustable |
| Overvoltage response | Cut-off |
| Features | Fault output, Power good signal |
| Rating | Catalog |
| Device type | eFuses and hot swap controllers |
| Operating temperature range (°C) | -40 to 125 |
| Function | Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection |
| SOIC (NPA) | 14 | 92.8372375 mm² 8.9915 x 10.325 |
| VSSOP (DGS) | 10 | 14.7 mm² 3 x 4.9 |