
1
FEATURES
DESCRIPTION
APPLICATIONS
TYPICAL APPLICATION
16
28
26
11
IN12
EN12
EN3
OREN
TPS2458
17
23
7
19
IN3
VDD3
CT12
CT3
18
4
6
21
OUT3
PG12
FLT12
PG3
20
5
22
FLT3
SUM12
SUM3
15
SENP
14
SET
13
SENM
12
PASS
8
BLK
9
OUT12
1
VINT
2
3
10
25
27
29
31
UDG-09030
24 AGND
GND GND
GND GND GND GND GND
3320 W
6810 W
AdvancedMCTM
12 V
3.3 V
422 W
0.005 W
12 V
V
IN
3.3 V
V
IN
Optional ORing components for redundant systems
HAT2165 BSC057N03
www.ti.com ............................................................................................................................................................................................ SLUS916 – FEBRUARY 2009
12-V/3.3-V Hot Swap and ORing Controller with Load Current Monitor for AdvancedMC
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ATCA AdvancedMC Compliant
The TPS2458 AdvancedMC slot controller is fully
compliant with the AdvancedMC Standard and
Full Power Control for an AdvancedMC
provides the required accuracy to meet the demands
Module
of an AdvancedMC (Advanced Mezzanine Card)
Programmable 12-V Current Limit and Fast
module.
Trip
The TPS2458 is an extremely flexible solution that
Optional 12-V ORing Control for MicroTCA
protects both the power supply and the load by
Internal 3.3-V Current Limit
limiting the maximum current into the load, shutting
Programmable Shunt Gain
off in case of a fault. If a severe fault occurs the
current shuts off immediately.
Interlock Requires 3.3-V Output Prior to 12 V
Optional ORing support is inherent in the architecture
12-V and 3-V Power Good and Fault Outputs
and can be used in MicroTCA, or other applications
Load Current Monitor
requiring ORing support.
32-Pin PQFN Package
The 3.3-V management channel is internal and
requires only one external resistor for load monitoring
and one external capacitor to set fault time. To
ATCA Carrier Boards
comply with the AdvancedMC requirements, the
MicroTCAPower Modules
12-V output is disabled unless the 3.3-V Power Good
AdvancedMC Slots
signal is asserted. Load current monitors are provided
for both the 12 V and 3.3 V channels. Status outputs
Systems Using 12 V and 3.3 V
include Power Good and Fault indicators for each
Base Stations
channel. The TPS2458 is in a 32-pin PQFN package.
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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.
2
AdvancedMC, MicroTCA are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 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.