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TPS2458

Texas Instruments
Part Number TPS2458
Manufacturer Texas Instruments
Description Hot Swap and ORing Controller
Published Jun 6, 2022
Detailed Description TPS2458 www.ti.com SLUS916B – FEBRUARY 2009 – REVISED MAY 2010 12-V/3.3-V Hot Swap and ORing Controller with Load Cur...
Datasheet PDF File TPS2458 PDF File

TPS2458
TPS2458


Overview
TPS2458 www.
ti.
com SLUS916B – FEBRUARY 2009 – REVISED MAY 2010 12-V/3.
3-V Hot Swap and ORing Controller with Load Current Monitor for AdvancedMC™ Check for Samples: TPS2458 FEATURES 1 •2 ATCA AdvancedMC™ Compliant • Full Power Control for an AdvancedMC™ Module • Programmable 12-V Current Limit and Fast Trip • Optional 12-V ORing Control for MicroTCA™ • Internal 3.
3-V Current Limit • Programmable Shunt Gain • Interlock Requires 3.
3-V Output Prior to 12 V • 12-V and 3-V Power Good and Fault Outputs • Load Current Monitor • 32-Pin PQFN Package APPLICATIONS • ATCA Carrier Boards • MicroTCA™Power Modules • AdvancedMC™ Slots • Systems Using 12 V and 3.
3 V • Base Stations DESCRIPTION The TPS2458 AdvancedMC™ slot controller is fully compliant with the AdvancedMC™ Standard and provides the required accuracy to meet the demands of an AdvancedMC™ (Advanced Mezzanine Card) module.
The TPS2458 is an extremely flexible solution that protects both the power supply and the load by limiting the maximum current into the load and shutting off in case of a fault.
If a severe fault occurs the current shuts off immediately.
Optional ORing support is inherent in the architecture and can be used in MicroTCA™, or other applications requiring ORing support.
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 comply with the AdvancedMC™ requirements, the 12-V output is disabled unless the 3.
3-V Power Good signal is asserted.
Load current monitors are provided for both the 12 V and 3.
3 V channels.
Status outputs include Power Good and Fault indicators for each channel.
The TPS2458 is in a 32-pin PQFN package.
12 V 3.
3 V TYPICAL APPLICATION 0.
005 W CSD16406Q3 x2 422 W 100 W 100 W 15 14 SENP SET 16 IN12 13 12 SENM PASS 8 9 BLK OUT12 OUT3 18 28 EN12 EN3 26 OREN 11 IN3 17 VDD3 23 CT12 7 CT3 19 VINT 1 TPS2458 PG12 4 FLT12 6 PG3 21 FLT3 20 SUM12 5 SUM3 22 24 AGND GND GND 23 GND G...


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