TPS2358 Datasheet, PDF (1/34 Pages) Texas Instruments – TPS2358 Dual-Slot ATCA AdvancedMC™ Controller

TPS2358
www.ti.com..................................................................................................................................................... SLUS820C – FEBRUARY 2008 – REVISED MAY 2008
TPS2358 Dual-Slot ATCA AdvancedMC™ Controller
FEATURES
1
•2 ATCA AdvancedMC™ Compliant
• Full Power Control for Two
AdvancedMC™Modules
• Independent 12-V Current Limit and Fast Trip
• 12-V FET ORing for MicroTCA™
• Internal 3.3-V Current Limit
• Power Good and Fault Outputs
• 48-Pin PQFN Package
APPLICATIONS
• ATCA Carrier Boards
• MicroTCA™ Power Modules
• AdvancedMC™ Slots
• Systems Using 12 V and 3.3 V
• Base Stations
DESCRIPTION
The TPS2358 dual-slot hot-plug controller provides all
required power interface functions for two
AdvancedMC™ (Advanced Mezzanine Card)
modules.
Two fully integrated 3.3-V channels provide inrush
control, current limiting, and overload protection. The
two 12-V channels use an external FET to provide
the same functions, along with ORing control circuits
that allow an external FET to prevent reverse current
flow. The 3.3-V current limits are factory set to
AdvancedMC™ compliant levels and the 12-V current
limits are programmed using external sense resistors.
The accurate current sense comparators of the
TPS2358 satisfy the narrow ATCA AdvancedMC™
current limit requirements.
TYPICAL APPLICATION DIAGRAM
12 V in
3v3 in
COMMON
CIRCUITRY
3v3 in
12 V in
R_SET
IN12B
SENPB
SETB
R_SENSE
SENMB
PASSB
BLKB
OUT12B
OUT3B
3.3 V
12 V
AdvancedMC™
R_SUM12B
R_SUM3B
TPS2358
48 PIN QFN
COMMON
CIRCUITRY
IN12A
SENPA
SETA
R_SET
R_SENSE
SENMA
PASSA
BLKA
OUT12A
OUT3A
R_SUM3A
R_SUM12A
3.3 V
12 V
AdvancedMC™
Optional ORing FETs for
Redundant Systems Only
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.
AdvancedMC, MicroTCA are trademarks of PICMG.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated