TPS2419 Series

0.8-V to 16.5-V 1.2A IQ 291-uA Igate source N+1 and OR-ing power rail controller with enable

Catalog

0.8-V to 16.5-V 1.2A IQ 291-uA Igate source N+1 and OR-ing power rail controller with enable

Part	Applications	Internal Switch(s)	Mounting Type	FET Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Delay Time - OFF	Ratio - Input:Output [custom]	Package / Case	Package / Case [custom]	Package / Case [custom]	Supplier Device Package	Type	Current - Supply	Package / Case [y]	Package / Case [x]
Texas Instruments TPS2419PW	High Availability N+1 Power Supplies		Surface Mount	N-Channel	85 °C	-40 °C	16.5 V	3 V	130 ns	N:1	8-TSSOP	0.173 "	4.4 mm	8-TSSOP	N+1 ORing Controller	4.25 mA
Texas Instruments TPS2419D	High Availability N+1 Power Supplies		Surface Mount	N-Channel	85 °C	-40 °C	16.5 V	3 V	130 ns	N:1	8-SOIC			8-SOIC	N+1 ORing Controller	4.25 mA	3.9 mm	0.154 in

Catalog

0.8-V to 16.5-V 1.2A IQ 291-uA Igate source N+1 and OR-ing power rail controller with enable

Key Features

• Control External FET for N+1 and ORingControls Buses From 3 V to 16.5 VExternal EnableN-Channel MOSFETControlRapid Device Turnoff Protects Bus IntegrityProgrammable Turn-Off ThresholdSoft Turn on Reduces Bus TransientsIndustrial Temperature Range: –40°C to 85°C8-Pin TSSOP and SOIC PackagesAPPLICATIONSN+1 Power SuppliesServer BladesTelecom SystemsHigh Availability Power ModulesControl External FET for N+1 and ORingControls Buses From 3 V to 16.5 VExternal EnableN-Channel MOSFETControlRapid Device Turnoff Protects Bus IntegrityProgrammable Turn-Off ThresholdSoft Turn on Reduces Bus TransientsIndustrial Temperature Range: –40°C to 85°C8-Pin TSSOP and SOIC PackagesAPPLICATIONSN+1 Power SuppliesServer BladesTelecom SystemsHigh Availability Power Modules

Description

The TPS2419 controller, in conjunction with an external N-channel MOSFET, provides the reverse current protection of an ORing diode with the efficiency of a MOSFET. The TPS2419 can be used to combine multiple power supplies to a common bus in an N+1 configuration, or to combine redundant input power buses. Applications for the TPS2419 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. Accurate voltage sensing and a programmable turn-off threshold allows operation to be tailored for a wide range of implementations and bus characteristics. The TPS2419 brings out an enable pin which allows the system to force the MOSFET off under light-load, high noise conditions. The TPS2419 controller, in conjunction with an external N-channel MOSFET, provides the reverse current protection of an ORing diode with the efficiency of a MOSFET. The TPS2419 can be used to combine multiple power supplies to a common bus in an N+1 configuration, or to combine redundant input power buses. Applications for the TPS2419 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. Accurate voltage sensing and a programmable turn-off threshold allows operation to be tailored for a wide range of implementations and bus characteristics. The TPS2419 brings out an enable pin which allows the system to force the MOSFET off under light-load, high noise conditions.