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TPS24740

ACTIVE

2.5-V to 18-V hot swap controller with power limiting and Oring with latch off

Product details

Vabsmax_cont (V) 30 Vin (max) (V) 18 Vin (min) (V) 2.5 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, adjustable UVLO Overcurrent response Circuit breaker, Current limiting Fault response Latch Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0042 Quiescent current (Iq) (max) (A) 0.006 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 30 Vin (max) (V) 18 Vin (min) (V) 2.5 Features Adjustable current limit, Adjustable soft start, Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Reverse current blocking always, adjustable UVLO Overcurrent response Circuit breaker, Current limiting Fault response Latch Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0042 Quiescent current (Iq) (max) (A) 0.006 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 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
  • 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

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.

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

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* Data sheet TPS2474x 2.5-V to 18-V High Performance Hot Swap and ORing Controller datasheet (Rev. A) PDF | HTML Feb 17, 2015
Selection guide Hot Swap Selection Tool Jul 28, 2015
Application note Handling System Transients in Hot Swap Applications May 8, 2015

Design & development

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

Evaluation board

TPS24740EVM-596 — TPS24740 EVM for ORing to Multiple Hotswap Loads

The TPS24740EVM-596 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS24740 2.5-V to 18-V 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 (...)

User guide: PDF
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Evaluation board

TPS24742EVM-667 — TPS24742 Evaluation Module for Hotswap to ORing Applications

The TPS24742EVM-667 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS24742 2.5-V to 18-V positive voltage hot-swap and ORing controller. The EVM is designed for hot swap to ORing applications  and contains header connectors for easy connection to external (...)

User guide: PDF
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Simulation model

TPS24740 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM709A.ZIP (122 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVRBD9 — TPS2474x Design Calculator

Supported products & hardware
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.
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Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian

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