0
ACTIVE
Vin (max) (V) |
16.5 |
Vin (min) (V) |
0.8 |
FET |
External single FET |
Device type |
ORing controller |
Number of channels |
1 |
Rating |
Catalog |
Features |
Gate ON/OFF control, Reverse current blocking |
Imax (A) |
250 |
Iq (typ) (mA) |
1.2 |
Iq (max) (mA) |
7 |
IGate source (typ) (µA) |
290 |
IGate source (max) (µA) |
350 |
IGate sink (typ) (mA) |
5 |
IGate pulsed (typ) (A) |
2.35 |
Operating temperature range (°C) |
-40 to 85 |
VGS (max) (V) |
11.5 |
Product type |
ORing controller |
SOIC (D)-8-29.4 mm² 4.9 x 6
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.