| Vin (Min) (V) | -6 |
| Vin (Max) (V) | 100 |
| Number of channels (#) | 1 |
| Features | FET test, Linear control, Power good signal, Reverse current blocking |
| Iq (Typ) (mA) | 0.69 |
| Iq (Max) (mA) | 0.78 |
| FET | External single FET |
| IGate source (Typ) (uA) | 660 |
| IGate source (Max) (uA) | 950 |
| IGate sink (Typ) (mA) | 3.5 |
| IGate pulsed (Typ) (A) | 3.5 |
| Operating temperature range (C) | -40 to 125 |
| VSense reverse (Typ) (mV) | -45 |
| Design support | EVM, Simulation Model |
| Rating | Catalog |
- Wide operating input voltage range: -6V to -100V
- -100V Transient Capability
- Gate drive for external N-Channel MOSFET
- MOSFET diagnostic test mode
- Fast 50ns response to current reversal
- 2A peak gate turn-off current
- Package: 8-Lead SOIC
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The LM5051 Low Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This OR-ing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.
The LM5051 controller provides gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5051 can connect power supplies ranging from -6V to -100V and can withstand transients up to -100V.
The LM5051 also provides a FET test diagnostic mode which allows the system controller to test for shorted MOSFETs.
