LM5051 Texas instruments

LM5051

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LM5051

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Описание

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.

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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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) (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
Rating	Catalog
Imax (A)	250
Shutdown current (ISD) (mA) (A)	0.1
Device type	ORing controller
Product type	ORing controller