1

FEATURES

DESCRIPTION

APPLICATIONS

TPS2412 /13

NOTE:R

isOptional

(SET)

A

C

TPS2412

TPS2413

N+1 and ORing Power Rail Controller

• Control External FET for N+1 and ORing

• Wide Supply Voltage Range of 3 V to 16.5 V

The TPS2412/13 controller, in conjunction with an

• Controls Buses From 0.8 V to 16.5 V

external N-channel MOSFET, emulates the function

• Linear or On/Off Control Method

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

be used to combine multiple power supplies to a

• Internal Charge Pump for N-Channel MOSFET

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

• Rapid Device Turnoff Protects Bus Integrity

redundant input power buses. The TPS2412 provides

• Positive Gate Control on Hot Insertion

a linear turn-on control while the TPS2413 has an

on/off control method.

• Soft Turn on Reduces Bus Transients

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

Applications for the TPS2412/13 include a wide range

of systems including servers and telecom. These

• 8-Pin TSSOP and SOIC Packages

applications often have either N+1 redundant power

supplies, redundant power buses, or both. Redundant

power sources must have the equivalent of a diode

• N+1 Power Supplies

OR to prevent reverse current during faults and

• Server Blades

hotplug. A TPS2412/13 and N-channel MOSFET

• Telecom Systems

provide this function with less power loss than a

schottky diode.

• 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,

reduced feature versions of the TPS2410/11.

Table 1. Family Features

TPS2410 TPS2411 TPS2412 TPS2413

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

1

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 © 2007–2008, 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.