TPS2456 Series

8.5-V to 15-V dual channelHot Swap with Oring and Impro-Ved Slew Rate Immunity

Link to Manufacturer Page: https://www.ti.com/

Catalog

8.5-V to 15-V dual channelHot Swap with Oring and Impro-Ved Slew Rate Immunity

Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Supplier Device Package	Number of Channels	Mounting Type	Type	Features	Current - Supply	Operating Temperature [Min]	Operating Temperature [Max]	Applications	Programmable Features
Texas Instruments TPS2456ARHHT	15 V	8.5 V	36-VFQFN Exposed Pad	36-VQFN (6x6)	2	Surface Mount	Hot Swap Controller, OR Controller	Latched Fault, Thermal Limit, UVLO	3.1 mA	-40 °C	85 °C	General Purpose	Circuit Breaker, Current Limit, Fault Timeout, Slew Rate
Texas Instruments TPS2456RHHT	15 V	8.5 V	36-VFQFN Exposed Pad	36-VQFN (6x6)	2	Surface Mount	Hot Swap Controller, OR Controller	Latched Fault, Thermal Limit, UVLO	3.1 mA	-40 °C	85 °C	General Purpose	Circuit Breaker, Current Limit, Fault Timeout, Slew Rate
Texas Instruments TPS2456ARHHR	15 V	8.5 V	36-VFQFN Exposed Pad	36-VQFN (6x6)	2	Surface Mount	Hot Swap Controller, OR Controller	Latched Fault, Thermal Limit, UVLO	3.1 mA	-40 °C	85 °C	General Purpose	Circuit Breaker, Current Limit, Fault Timeout, Slew Rate

Key Features

• TPS2456A Improves Supply Slew-rate ImmunityDual 12 V Protection and Blocking ControlIndependent Current Limit and Fast TripBlocking Permits ORing of Multiple InputsPower Good and Fault OutputsAnalog Current Monitor Outputs-40°C to 125°C Operating TJQFN36 PackageTPS2456A Improves Supply Slew-rate ImmunityDual 12 V Protection and Blocking ControlIndependent Current Limit and Fast TripBlocking Permits ORing of Multiple InputsPower Good and Fault OutputsAnalog Current Monitor Outputs-40°C to 125°C Operating TJQFN36 Package

Description

The TPS2456A 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. The TPS2456 and TPS2456A have identical Electrical Characteristics tables. The TPS2456A has reduced sensitivity to input supply slew rate variations. It is recommended for all new applications. The TPS2456A 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. The TPS2456 and TPS2456A have identical Electrical Characteristics tables. The TPS2456A has reduced sensitivity to input supply slew rate variations. It is recommended for all new applications.