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TPS24771

ACTIVE

2.5-V to 18-V hot swap controller with high performance with analog current monitor

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Data sheet

TPS24771

ACTIVE
Data sheet Order now

Product details

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 Circuit breaker Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
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 Circuit breaker Fault response Auto-retry Soft start Adjustable Overvoltage response Cut-off Features Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
VQFN (RGE) 24 16 mm² 4 x 4
  • 2.5V to 18V Bus Operation (30V abs max)
  • Programmable Protection Settings:
    • Current Limit: ±5% at 10mV
    • Fast Trip: ±10% at 20mV
  • Programmable FET SOA Protection
  • Programable Response Time for Fast Trip
  • Dual Timer (Inrush/Fault)
  • Analog Current Monitor (1% at 25mV)
  • Programmable UV and OV
  • Status Flags for Faults and Power Good
  • 4mm × 4mm 24-pin QFN
  • 70 = Latch, 71 = Retry, 72 = 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
  • Programmable FET SOA Protection
  • Programable Response Time for Fast Trip
  • Dual Timer (Inrush/Fault)
  • Analog Current Monitor (1% at 25mV)
  • Programmable UV and OV
  • Status Flags for Faults and Power Good
  • 4mm × 4mm 24-pin QFN
  • 70 = Latch, 71 = Retry, 72 = Fast Latch Off

The TPS2477x is a high performance analog Hot Swap Controller for 2.5 V to 18 V systems. The precise and highly programmable protection settings of the TPS2477x aid 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 can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Programmable Safe Operating Area (SOA) protection and the inrush timer keep the MOSFET safe under all conditions. After asserting power good, TPS2477x acts as a circuit breaker and 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.

Finally, the flexibility of the TPS2477x aid Hot Swap design for the 240 VA requirement and a design example is shown in the datasheet.

The TPS2477x is a high performance analog Hot Swap Controller for 2.5 V to 18 V systems. The precise and highly programmable protection settings of the TPS2477x aid 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 can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Programmable Safe Operating Area (SOA) protection and the inrush timer keep the MOSFET safe under all conditions. After asserting power good, TPS2477x acts as a circuit breaker and 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.

Finally, the flexibility of the TPS2477x aid Hot Swap design for the 240 VA requirement and a design example is shown in the datasheet.
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Technical documentation

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Type Title Date
* Data sheet TPS2477x 2.5 to 18-V High Performance Hot Swap datasheet PDF | HTML 03 Mar 2015
Selection guide Hot Swap Selection Tool 28 Jul 2015
EVM User's guide TPS24772EVM-685 Evaluation Module User's Guide 18 Mar 2015
EVM User's guide TPS24740EVM-596 Evaluation Module (Rev. A) 12 Mar 2015

Design & development

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

Evaluation board

TPS24772EVM-685 — TPS24772 EVM for high performance hotswap applications

The TPS24772EVM-685 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS24772 2.5V to 18V High Performance Hot-Swap controller. The EVM contains header connectors for easy connection to external test and application circuitry.

 

 

User guide: PDF
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Simulation model

TPS24771 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAQ4A.ZIP (107 KB) - PSpice Model
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Calculation tool

SLVRBE0 — TPS2477x Design Calculator

Supported products & hardware

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Products
eFuses & hot swap controllers
TPS24770 — 2.5-V to 18-V hot swap controller with high performance and current monitoring TPS24771 — 2.5-V to 18-V hot swap controller with high performance with analog current monitor TPS24772 — 2.5-V to 18-V hot swap controller with high performance
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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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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 (...)
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