LM5050-1 Texas instruments

LM5050-1

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LM5050-1

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Описание

The LM5050-1/-Q1 High 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 ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.The LM5050-1/-Q1 controller provides charge pump 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 LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.

Available in Standard and AEC-Q100 Qualified Versions LM5050Q0MK-1 (up to 150°C T_J) and LM5050Q1MK-1 (up to 125°C T_J)
Functional safety capable
- Documentation available to aid functional safety system design
Wide Operating Input Voltage Range, V_IN: 1 V to 75 V (V_BIAS required for V_IN < 5 V)
100-V Transient Capability
Charge Pump Gate Driver for External N-Channel MOSFET
Fast 50-ns Response to Current Reversal
2-A Peak Gate Turnoff Current
Minimum V_DS Clamp for Faster Turnoff
Package: SOT-6 (Thin SOT-23-6)

Vin (min) (V)	5
Vin (max) (V)	75
Number of channels	1
Features	AUX input, Linear control, Reverse current blocking, Reverse polarity protection
Iq (typ) (mA)	0.4
Iq (max) (mA)	0.72
FET	External single FET
IGate source (typ) (µA)	31
IGate source (max) (µA)	41
IGate sink (typ) (mA)	2.8
IGate pulsed (typ) (A)	2.8
Operating temperature range (°C)	-40 to 125
VSense reverse (typ) (mV)	-41, -28
Design support	EVM, Simulation Model
Rating	Catalog
Imax (A)	250
VGS (max) (V)	14
Shutdown current (ISD) (mA) (A)	0.1
Device type	ORing controller
Product type	ORing controller