TPS2412_17 Datasheet, PDF (1/29 Pages) Texas Instruments – N+1 and ORing Power Rail Controller

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TPS2412, TPS2413
SLVS728C – JANUARY 2007 – REVISED NOVEMBER 2015
TPS241x N+1 and ORing Power Rail Controller
1 Features
•1 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
2 Applications
• N+1 Power Supplies
• Server Blades
• Telecom Systems
• High Availability Systems
3 Description
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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2412,
TPS2413
TSSOP (8)
SOIC (8)
4.40 mm × 3.00 mm
3.91 mm × 4.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Diagram
A
C
TPS2412 /13
NOTE: R_(SET) is Optional
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.