0
ACTIVE
Vin (max) (V) |
100 |
Vin (min) (V) |
-6 |
FET |
External single FET |
Device type |
ORing controller |
Number of channels |
1 |
Rating |
Catalog |
Features |
FET test, Linear control, Power good signal, Reverse current blocking |
Imax (A) |
250 |
Iq (typ) (mA) |
0.69 |
Iq (max) (mA) |
0.78 |
IGate source (typ) (µA) |
660 |
IGate source (max) (µA) |
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 |
Shutdown current (ISD) (mA) (A) |
0.1 |
Product type |
ORing controller |
SOIC (D)-8-29.4 mm² 4.9 x 6
All trademarks are the property of their respective owners.
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.
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