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TPS2350

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-12-V to -80-V hot swap controller with Oring

Product details

FET External Vin (min) (V) -80 Vin (max) (V) -12 Vabsmax_cont (V) -100 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response current limiting Soft start Adjustable Overvoltage response Cut-off Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection
FET External Vin (min) (V) -80 Vin (max) (V) -12 Vabsmax_cont (V) -100 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response current limiting Soft start Adjustable Overvoltage response Cut-off Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • Replaces OR-ing Diodes
  • Operating Supply Range of –12 V to –80 V
  • Withstands Transients to –100 V
  • Programmable Current Limit
  • Programmable Linear Inrush Slew Rate
  • Programmable UV/OV Thresholds
  • Programmable UV and OV Hysteresis
  • Fault Timer to Eliminate Nuisance Trips
  • Power Good and Fault Outputs
  • 14-Pin SOIC and TSSOP Package
  • Replaces OR-ing Diodes
  • Operating Supply Range of –12 V to –80 V
  • Withstands Transients to –100 V
  • Programmable Current Limit
  • Programmable Linear Inrush Slew Rate
  • Programmable UV/OV Thresholds
  • Programmable UV and OV Hysteresis
  • Fault Timer to Eliminate Nuisance Trips
  • Power Good and Fault Outputs
  • 14-Pin SOIC and TSSOP Package

The TPS2350 is a hot swap power manager optimized for replacing OR-ing diodes in redundant power –48-V systems. The TPS2350 operates with supply voltages from –12 V to –80 V, and withstands spikes to –100 V.

The TPS2350 uses two power FETs as low voltage drop diodes to efficiently select between two redundant power supplies. This minimizes system power dissipation and also minimizes voltage drop through the power management chain.

The TPS2350 also uses a third power FET to provide load current slew rate control and peak current limiting that is programmed by one resistor and one capacitor. The device also provides a power good output to enable down-stream power converters and a fault output to indicate load problems.

The TPS2350 is a hot swap power manager optimized for replacing OR-ing diodes in redundant power –48-V systems. The TPS2350 operates with supply voltages from –12 V to –80 V, and withstands spikes to –100 V.

The TPS2350 uses two power FETs as low voltage drop diodes to efficiently select between two redundant power supplies. This minimizes system power dissipation and also minimizes voltage drop through the power management chain.

The TPS2350 also uses a third power FET to provide load current slew rate control and peak current limiting that is programmed by one resistor and one capacitor. The device also provides a power good output to enable down-stream power converters and a fault output to indicate load problems.

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Technical documentation

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Type Title Date
* Data sheet TPS2350 Hot Swap datasheet (Rev. D) 07 Oct 2013
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Hot Swap Selection Tool 28 Jul 2015
User guide -48-V ATCA Hot Swap Reference Design Using the TPS2350 (Rev. A) 15 Jun 2005
User guide TPS2350 (Rev. A) 23 Sep 2003

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS2350EVM — Telecom -48V OR-ing Diode replacement product TPS2350 Eval Module

The TPS2350 -48 V hot swap/supply selector EVM kit is a PCB-based platform that enables designers to rapidly learn about the TPS2350 operation, and evaluate its performance during hot swap events.

The assembly (TI part number HPA021-001) features a TPS2350 device as it may be connected in the power (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS2350 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM359A.ZIP (257 KB) - PSpice Model
Calculation tool

TPS2350CALC TPS2350 Design Calculator

Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
TPS2350 -12-V to -80-V hot swap controller with Oring
Calculation tool

TVS-RECOMMENDATION-CALC TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
Supported products & hardware

Supported products & hardware

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Check the product details page to verify support.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
SOIC (D) 14 View options
TSSOP (PW) 14 View options

Ordering & quality

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  • Assembly location

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