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Administración de potencia
Interruptores y controladores de protección de potencia
Fusibles electrónicos (intercambios en caliente integrados)

TPS1685

ACTIVO

Fusible electrónico (eFuse) apilable de intercambio en caliente integrado de 9 V a 80 V, 3.5 mΩ, 20 

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TPS1685

ACTIVO
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Detalles del producto

Vabsmax_cont (V) 92 Vin (max) (V) 80 Vin (min) (V) 9 Current limit (max) (A) 20 Current limit (min) (A) 2 Features Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Soft-start, Thermal shutdown Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 3.5 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0022 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
Vabsmax_cont (V) 92 Vin (max) (V) 80 Vin (min) (V) 9 Current limit (max) (A) 20 Current limit (min) (A) 2 Features Current monitoring, Fault output, Overcurrent protection, Overvoltage protection, Power good signal, Short-circuit protection, Soft-start, Thermal shutdown Overcurrent response Circuit breaker Fault response Auto-retry, Latch-off Ron (typ) (mΩ) 3.5 Overvoltage response Cut-off Rating Catalog Soft start Adjustable Quiescent current (Iq) (typ) (A) 0.0022 Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125
LQFN-CLIP (VMA) 23 30 mm² (5 mm × 6 mm)
  • Input operating voltage range: 9V to 80V
    • 92V absolute maximum
    • Withstands negative voltages up to –5V at output
  • Integrated FET with low on-resistance: RON = 3.5mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Adjustable overvoltage protection
  • Supports parallel connection of multiple eFuses with device state synchronization and current sharing
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Precise load current monitoring
    • <3% error for over 50-100% of maximum current
    • 1MHz bandwidth
  • Robust overcurrent protection
    • Circuit-breaker response
    • Adjustable threshold: 2A to 20A
    • Overcurrent protection accuracy: ±3%
    • Adjustable transient overcurrent timer (ITIMER) to support peak currents
  • Fast-trip response to short-circuit events
  • Overtemperature protection (OTP) with analog die temperature monitor output (TEMP)
    • FET SOA: 0.7W√s
  • FET health monitoring and reporting
  • Fault indication pin (FLT )
  • Power Good indication pin (PGOOD)
  • Small footprint: QFN 6mm × 5mm
    • IPC9592B clearance for 60V
  • Input operating voltage range: 9V to 80V
    • 92V absolute maximum
    • Withstands negative voltages up to –5V at output
  • Integrated FET with low on-resistance: RON = 3.5mΩ (typical)
  • Active high enable input with adjustable undervoltage lockout (UVLO)
  • Adjustable overvoltage protection
  • Supports parallel connection of multiple eFuses with device state synchronization and current sharing
  • Adjustable output slew rate control (dVdt) for inrush current protection
  • Precise load current monitoring
    • <3% error for over 50-100% of maximum current
    • 1MHz bandwidth
  • Robust overcurrent protection
    • Circuit-breaker response
    • Adjustable threshold: 2A to 20A
    • Overcurrent protection accuracy: ±3%
    • Adjustable transient overcurrent timer (ITIMER) to support peak currents
  • Fast-trip response to short-circuit events
  • Overtemperature protection (OTP) with analog die temperature monitor output (TEMP)
    • FET SOA: 0.7W√s
  • FET health monitoring and reporting
  • Fault indication pin (FLT )
  • Power Good indication pin (PGOOD)
  • Small footprint: QFN 6mm × 5mm
    • IPC9592B clearance for 60V

The TPS1685x is an integrated high current circuit protection and power management device. The device provides multiple protection modes using very few external components and is a robust defense against overloads, short-circuits and excessive inrush current. Applications with particular inrush current requirements can set the output slew rate with an external capacitor. The user sets the output current limit level per system needs. A user adjustable overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse. An integrated fast and accurate sense analog load current monitor facilitates predictive maintenance and advanced dynamic platform power management such as Intel PSYS and PROCHOT# to optimize server and data-center performance.

Connect multiple TPS1685x devices in parallel to increase the total current capacity for high power systems. All devices actively synchronize the operating state and share current during start-up as well as steady state to avoid over-stressing some of the devices which can result in premature or partial shutdown of the parallel chain.

The devices are characterized for operation over a junction temperature range from –40°C to +125°C.

The TPS1685x is an integrated high current circuit protection and power management device. The device provides multiple protection modes using very few external components and is a robust defense against overloads, short-circuits and excessive inrush current. Applications with particular inrush current requirements can set the output slew rate with an external capacitor. The user sets the output current limit level per system needs. A user adjustable overcurrent blanking timer allows systems to support transient peaks in the load current without tripping the eFuse. An integrated fast and accurate sense analog load current monitor facilitates predictive maintenance and advanced dynamic platform power management such as Intel PSYS and PROCHOT# to optimize server and data-center performance.

Connect multiple TPS1685x devices in parallel to increase the total current capacity for high power systems. All devices actively synchronize the operating state and share current during start-up as well as steady state to avoid over-stressing some of the devices which can result in premature or partial shutdown of the parallel chain.

The devices are characterized for operation over a junction temperature range from –40°C to +125°C.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS1685x 9V to 80V, 3.5mΩ, 20A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor datasheet (Rev. D) PDF | HTML 14/07/2026
Nota sobre la aplicación Active Current Sharing: Advanced Current Distribution Feature From TI's Smart eFuses PDF | HTML 9/05/2025
Artículo técnico Powering modern AI data centers with industry’s first integrated 48V integrated hot swap (eFuse) PDF | HTML 25/02/2025
Nota sobre la aplicación Enhancing Server Power Design Using Advanced Features of TI’s Smart eFuses PDF | HTML 29/01/2025

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS1685EVM — Módulo de evaluación TPS1685

El TPS1685EVM se utiliza para evaluar el rendimiento del dispositivo con fusibles electrónicos TPS1685. El TPS1685EVM viene con dos fusibles electrónicos TPS16850 conectados en paralelo para evaluar un diseño de 54 V (típico) y 40 A (estado estable). Este módulo de evaluación incorpora dos (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

TPS1685 PSpice Transient Model

SLVMED5.ZIP (68 KB) - Modelo PSpice
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Modelo de simulación

TPS16851 PSpice Transient Model

SLVMED3.ZIP (66 KB) - Modelo PSpice
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Herramienta de cálculo

TPS1685-CALC — TPS1685 Design Calculator

The design calculator allows customer to size the external peripheral components while designing with TPS1685 eFuse.
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Herramienta de cálculo

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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Diseño de referencia

TIDA-050090 — Dis. de ref. de prot. de ruta de pot. 54 V, 5 kW p/cent. de dat. IA que usan eFuse TPS1689 y TPS1685

Este diseño de referencia ilustra un circuito de protección de ruta de potencia de entrada de 54 V, 5 kW para centros de datos impulsados por IA, que utilizan un TPS1689 y cinco dispositivos de eFuse TPS1685 en paralelo. Estos dispositivos de protección de circuitos de alta corriente integrados (...)

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Pedidos y calidad

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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