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TPS2456

Texas Instruments
Part Number TPS2456
Manufacturer Texas Instruments
Description Dual 12V Protection / Blocking Controller
Published Jun 6, 2022
Detailed Description TPS2456 www.ti.com SLVSA78C – MARCH 2010 – REVISED JULY 2012 Dual 12 V Protection and Blocking Controller Check for S...
Datasheet PDF File TPS2456 PDF File

TPS2456
TPS2456

Overview
TPS2456 www.
ti.
com SLVSA78C – MARCH 2010 – REVISED JULY 2012 Dual 12 V Protection and Blocking Controller Check for Samples: TPS2456 FEATURES 1 • Dual 12 V Protection and Blocking Control • Independent Current Limit and Fast Trip • Blocking Permits ORing of Multiple Inputs • Power Good and Fault Outputs • Analog Current Monitor Outputs • -40°C to 125°C Operating Junction Temperature • QFN36 Package APPLICATIONS • ATCA Carrier Boards • AdvancedMC™ Slots • Blade Servers • Base Stations • Configurable for – 1 Source, 2 Loads – 2 Sources, 1 Load – 2 Sources, 2 Loads DESCRIPTION The TPS2456 is a dual, 12 V, channel protection (hotswap) and blocking (ORing) controller that provides inrush control, current limiting, overload protection, and reverse current blocking.
The current sense topology provides both accurate current limits and independent setting of current limit and fast trip thresholds.
The ORing control uses an external MOSFET to block reverse current when an input is shorted.
Systems with closely matched supply voltages and feed networks can supply current from both supplies simultaneously.
The MONx output provides an accurate analog indication of load current.
The protection circuits may be used without blocking, and the blocking may be used without protection.
Internal connections prevent implementation of these as four fully-independent functions.
INA CINA 0.
1mF RSENSEA RSETA M1A RG1A M2A RG2A INA SENPA SETA SENMA GAT1A GAT2A OUTA ENA ORENA CTA 33nF CTA VINT CINT 0.
1mF GND GND GND TPS2456 36 PIN QFN COMMON CIRCUITRY ENB ORENB CTB 33nF CTB PGA FLTA MONA GND GND GND GND GND MONB PGB FLTB RMON INB SENPB SETB SENMB GAT1B GAT2B OUTB CINB 0.
1mF INB RSETB RG1B M1B RSENSEB RG2B M2B Figure 1.
Two Sources, One Load Application Diagram 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 o...


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