Datasheet TPS2410, TPS2411 (Texas Instruments)

TPS2410 TPS2411 www.ti.com
.. SLVS727C – NOVEMBER 2006 – REVISED JUNE 2009
Full Featured N+1 and ORing Power Rail Controller FEATURES 1 DESCRIPTION
•
Control External FET for N+1 and ORing
The TPS2410/11 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 TPS2410/11 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 TPS2410 provides •
Rapid Device Turnoff Protects Bus Integrity
a linear turn-on control while the TPS2411 has an •
Positive Gate Control on Hot Insertion
on/off control method. •
Soft Turn on Reduces Bus Transients
Applications for the TPS2410/11 include a wide range •
Input Voltage Monitoring
of systems including servers and telecom. These applications often have either N+1 redundant power •
Shorted Gate Monitor
supplies, redundant power buses, or both. These •
MOSFET Control-State Indicator
redundant power sources must have the equivalent of •
Industrial Temperature Range: –40°C to 85°C
a diode OR to prevent reverse current during faults •
Industry-Standard 14-Pin TSSOP Package
and hotplug. A TPS2410/11 and N-channel MOSFET provide this function with less power loss than a
APPLICATIONS
schottky diode. •
N+1 Power Supplies
Accurate voltage sensing, programmable fast turn-off threshold, and input filtering allow operations to be •
Server Blades
tailored for a wide range of implementations and bus •
Telecom Systems
characteristics. •
High Availability Systems
A number of monitoring features are provided to indicate voltage bus UV/OV, ON/OFF state, and a A C shorted MOSFET gate.
Table 1. Family Features
C C (BYP) (FL T R C )
TPS2410 TPS2411 TPS2412 TPS2413
B F G V o A C Y L m V A D Linear gate control √ √ T D o P m T R lt E o ON/OFF gate control √ √ a n g e UV V Adjustable turn-off threshold √ √ √ √ PG S o o l R R FLTB t Fast comparator filtering √ √ u S G a r S g c V e OV E N STAT e Voltage monitoring √ √ T D D R a il Enable control √ √ R Mosfet fault monitoring √ √ (SET Status pin √ √ ) Note: Components on RSET, FLTR, UV and OV are OPTIONAL.
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 © 2006–2009, 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. Document Outline FEATURES APPLICATIONS DESCRIPTION ABSOLUTE MAXIMUM RATINGS DISSIPATION RATINGS RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS: TPS2410/11 DETAILED DESCRIPTION TYPICAL CHARACTERISTICS APPLICATION INFORMATION OVERVIEW TPS2410 vs TPS2411 – MOSFET CONTROL METHODS N+1 POWER SUPPLY – TYPICAL CONNECTION INPUT ORing – TYPICAL CONNECTION SYSTEM DESIGN AND BEHAVIOR WITH TRANSIENTS RECOMMENDED OPERATING RANGE TPS2410 REGULATION-LOOP STABILITY MOSFET SELECTION AND R(RSET) GATE DRIVE, CHARGE PUMP AND C(BYP) FAST COMPARATOR INPUT FILTERING – C(FLTR) UV, OV, AND PG VDD, BYP, and POWERING OPTIONS INPUT ORing AND STAT BIDIRECTIONAL BLOCKING AND PROTECTION OF C ORing EXAMPLES SUMMARIZED DESIGN PROCEDURE Layout Considerations