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Product details

Parameters

FET External Vin (Min) (V) 2.5 Vin (Max) (V) 18 Vabsmax_cont (V) 30 Current limit (Min) (A) 0.01 Current limit (Max) (A) 500 Overcurrent response Current Limiting Current limit type Adjustable Fault response Auto Retry UL recognition open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other eFuses & hot swap controllers

Features

  • 2.5V to 18V Bus Operation (30V abs max)
  • Programmable Protection Settings:
    • Current Limit: ±5% at 10mV
    • Fast Trip: ±10% at 20mV
    • Reverse Voltage: ±1mV at –1 mV
  • Programable Response Time for Fast Trip and
    Reverse Voltage
  • Programmable FET SOA Protection
  • Dual Timer (Inrush/Fault)
  • Interchangeable Hot Swap and ORing
  • Analog Current Monitor (1% at 25mV)
  • Status Flags for Faults and Power Good
  • UV and OV Protection
  • Independent EN for Hot Swap and ORing
  • 4mm × 4mm 24-pin QFN
  • 40 = Latch, 41 = Retry, 42 = Fast Latch Off
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Description

The TPS2474x is an integrated ORing and Hot Swap controller for 2.5 V to 18 V systems. It's precise and programmable protection settings aid in the design of high power, high availability systems where isolating faults is critical.

Programmable current limit, fast shut down, and fault timer protect the load and supply during fault conditions such as a hot - short. The fast shutdown threshold and response time can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Programmable SOA (Safe Operating Area) protection and the inrush timer keep the MOSFET safe under all operating conditions. After asserting a power good, TPS2474x runs the fault timer during over-current events, but doesn’t current limit. It shuts down after the fault timer expires. Two independent timers (inrush/fault) allow the user to customize protection based on system requirements. The ORing function of the TPS2474x allows the user to program the reverse voltage threshold and response time to aid in the design of redundant power supply systems.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet TPS2474x 2.5-V to 18-V High Performance Hot Swap and ORing Controller datasheet (Rev. A) Feb. 17, 2015
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
Selection guides Hot Swap Selection Tool Jul. 28, 2015
User guides TPS24742EVM-667 Evaluation Module User's Guide Jul. 02, 2015
Application notes Handling System Transients in Hot Swap Applications May 08, 2015
User guides TPS24740EVM-596 Evaluation Module (Rev. A) Mar. 12, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
99
Description

The TPS24740EVM-596 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS24740 2.5V to 18V Positive Voltage Hot-Swap and ORing controller. The EVM is designed for ORing to multiple hot-swapped loads and contains header connectors for easy connection to external test (...)

Features
  1. Programmable SOA
  2. Programmable Reverse Blocking Threshold
  3. Independent Enable for Hotswap and Oring
  4. Order of Hotswap and Oring Controller are Interchangeable
EVALUATION BOARDS Download
document-generic User guide
99
Description

The TPS24742EVM-667 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS24742 2.5V to 18V Positive Voltage Hot-Swap and ORing controller. The EVM is designed for hotswap to ORing applications  and contains header connectors for easy connection to external test (...)

Features
  • Programmable SOA
  • Programmable Reverse Blocking Threshold
  • Independent Enable for Hotswap and Oring
  • Order of Hotswap and Oring Controller are Interchangeable

Design tools & simulation

SIMULATION MODELS Download
SLVMAP3A.ZIP (135 KB) - PSpice Model
SIMULATION MODELS Download
SLVRBD9B.ZIP (829 KB) - Power Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
VQFN (RGE) 24 View options

Ordering & quality

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