TPS2412 Texas instruments

TPS2412

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TPS2412

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Описание

The TPS2412/13 controller, in conjunction with an external N-channel MOSFET, emulates the function of a low forward voltage diode. The TPS2412/13 can be used to combine multiple power supplies to a common bus in an N+1 configuration, or to combine redundant input power buses. The TPS2412 provides a linear turnon control while the TPS2413 has an on/off control method.Applications for the TPS2412/13 include a wide range of systems including servers and telecom. These applications often have either N+1 redundant power supplies, redundant power buses, or both. Redundant power sources must have the equivalent of a diode OR to prevent reverse current during faults and hotplug. A TPS2412/13 and N-channel MOSFET provide this function with less power loss than a schottky diode.Accurate voltage sensing and a programmable turnoff threshold allows operation to be tailored for a wide range of implementations and bus characteristics. The TPS2412/13 are lower pin count, reduced feature versions of the TPS2410/11.

Control External FET for N+1 and ORing
Wide Supply Voltage Range of 3 V to 16.5 V
Controls Buses From 0.8 V to 16.5 V
Linear or On/Off Control Method
Internal Charge Pump for N-Channel MOSFET
Rapid Device Turnoff Protects Bus Integrity
Positive Gate Control on Hot Insertion
Soft Turnon Reduces Bus Transients
Industrial Temperature Range: –40°C to 85°C
8-Pin TSSOP and SOIC Packages

Vin (min) (V)	0.8
Vin (max) (V)	16.5
Number of channels	1
Features	Linear control, Reverse current blocking
Iq (typ) (mA)	1.2
Iq (max) (mA)	7
FET	External single FET
IGate source (typ) (µA)	292
IGate source (max) (µA)	350
IGate sink (typ) (mA)	5
IGate pulsed (typ) (A)	2.35
Operating temperature range (°C)	-40 to 85
Design support	EVM, Reference Design
Rating	Catalog
Imax (A)	250
VGS (max) (V)	11.5
Device type	ORing controller
Product type	ORing controller