TPS2411 N+1 and OR-ing Power Rail Controller | TI.com

TPS2411
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N+1 and OR-ing Power Rail Controller

 

Description

The TPS241x controller, in conjunction with an external N-channel MOSFET, emulates the function of a low forward-voltage diode. The device 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 TPS2410 provides a linear turn-on control while the TPS2411 has an on/off control method.

Applications for the TPS2410x 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. These redundant power sources must have the equivalent of a diode OR to prevent reverse current during faults and hotplug. A TPS241x and N-channel MOSFET provide this function with less power loss than a schottky diode.

Accurate voltage sensing, programmable fast turn-off threshold, and input filtering allow operations to be tailored for a wide range of implementations and bus characteristics.

A number of monitoring features are provided to indicate voltage bus UV/OV, ON/OFF state, and a shorted MOSFET gate.

Features

  • 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 turn on reduces bus transients
  • Input voltage monitoring
  • Shorted gate monitor
  • MOSFET control-state indicator
  • Industrial temperature range: –40°C to 85°C
  • Industry-standard 14-Pin TSSOP package

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Parametrics

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Part number Order Vin (Min) (V) Vabsmin (Min) (V) Vin (Max) (V) Vabsmax (Max) (V) Iq (Typ) (mA) Iq (Max) (mA) FET IGate source (Typ) (uA) IGate source (Max) (uA) IGate sink (Typ) (mA) IGate pulsed (Typ) (A) Features Operating temperature range (C) Package Group Approx. price (US$) IReverse (Typ) (uA) VSense reverse (Typ) (mV) Design support Rating Package size: mm2:W x L (PKG) Channel(s) controlled (#) VGS (Max) (V)
TPS2411 Order now 0.8     -0.3     16.5     18     1.2     7     External     293     350     5     2.35     Input Filter
MUX Control
ON/OFF Control    
-40 to 85     TSSOP | 14
UQFN | 14    
1.50 | 1ku         Adjustable     EVM
Reference Design    
Catalog     14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)
14UQFN: 6 mm2: 2.5 x 2.5 (UQFN | 14)    
1     11.5    
TPS2410 Order now 0.8     -0.3     16.5     18     1.2     7     External     290     350     5     2.35     MUX Control
Linear Control    
-40 to 85     TSSOP | 14
UQFN | 14    
1.50 | 1ku         Adjustable     EVM
Reference Design    
Catalog     14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14)
14UQFN: 6 mm2: 2.5 x 2.5 (UQFN | 14)    
1     11.5    
TPS2412 Order now 0.8     -0.3     16.5     18     1.2     7     External     292     350     5     2.35     Linear Control     -40 to 85     SOIC | 8
TSSOP | 8    
1.20 | 1ku         Adjustable     EVM
Reference Design    
Catalog     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
1     11.5    
TPS2413 Order now 0.8     -0.3     16.5     18     1.2     7     External     291     350     5     2.35     ON/OFF Control     -40 to 85     SOIC | 8
TSSOP | 8    
1.20 | 1ku