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FEATURES

DESCRIPTION

APPLICATIONS

TPS2412 /13

NOTE:R

isOptional

(SET)

A

C

TPS2412

TPS2413

SLVS728A – JANUARY 2007 – REVISED FEBRUARY 2007

N+1 and ORing Power Rail Controller

• Control External FET for N+1 and ORing

The TPS2412/13 controller, in conjunction with an

• Wide Supply Voltage Range of 3 V to 16.5 V

external N-channel MOSFET, emulates the function

• Controls Buses From 0.8 V to 16.5 V

of a low forward voltage diode. The TPS2412/13 can

• Linear or On/Off Control Method

be used to combine multiple power supplies to a

common bus in an N+1 configuration, or to combine

• Internal Charge Pump for N-Channel MOSFET

redundant

input

power

buses.

The

TPS2412

• Rapid Device Turnoff Protects Bus Integrity

provides a linear turn-on control while the TPS2413

• Positive Gate Control on Hot Insertion

has an on/off control method.

• Soft Turn on Reduces Bus Transients

Applications for the TPS2412/13 include a wide

• Industrial Temperature Range: –40°C to 85°C

range of systems including servers and telecom.

These applications often have either N+1 redundant

• Industry-Standard 8-pin TSSOP Package

power supplies, redundant power buses, or both.

Redundant power sources must have the equivalent

of a diode OR to prevent reverse current during

• N+1 Power Supplies

faults and hotplug. A TPS2412/13 and N-channel

• Server Blades

MOSFET provide this function with less power loss

than a schottky diode.

• Telecom Systems

• High Availability Systems

Accurate voltage sensing and a programmable

turn-off threshold allows operation to be tailored for a

wide

range

of

implementations

and

bus

characteristics. The TPS2412/13 are lower pin count,

feature reduced versions of the TPS2410/11.

Table 1. Family Features

Linear gate control

√

√

ON/OFF gate control

√

√

Adjustable turn-off threshold

√

√

√

√

Fast comparator filtering

√

√

Voltage monitoring

√

√

Enable control

√

√

Mosfet fault monitoring

√

√

Status pin

√

√

Figure 1. Typical Application

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.