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Fusibles electrónicos y controladores de intercambio en caliente

TPS25940

ACTIVO

eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa y soporte DevSleep

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TPS25940

ACTIVO
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Detalles del producto

FET Internal Ron (typ) (mΩ) 42 Vin (min) (V) 2.7 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.6 Current limit (max) (A) 5.2 Overcurrent response current limiting Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal, Reverse current blocking always UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
FET Internal Ron (typ) (mΩ) 42 Vin (min) (V) 2.7 Vin (max) (V) 18 Vabsmax_cont (V) 20 Current limit (min) (A) 0.6 Current limit (max) (A) 5.2 Overcurrent response current limiting Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal, Reverse current blocking always UL recognition UL2367, UL60950 Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown
WQFN (RVC) 20 12 mm² 4 x 3
  • 2.7 V – 18 V Operating Voltage, 20 V (Max)
  • 42 mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200 µA Operating IQ (Typical)
  • 95 µA DevSleep Mode IQ (Typical)
  • 15 µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Threshold
  • Reverse Current Blocking
  • 1 µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • –40°C to 125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A max)
  • UL60950 - Safe during Single Point Failure Test
    • Open/Short ILIM detection
  • 2.7 V – 18 V Operating Voltage, 20 V (Max)
  • 42 mΩ RON (Typical)
  • 0.6 A to 5.3 A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • 200 µA Operating IQ (Typical)
  • 95 µA DevSleep Mode IQ (Typical)
  • 15 µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Threshold
  • Reverse Current Blocking
  • 1 µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • –40°C to 125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A max)
  • UL60950 - Safe during Single Point Failure Test
    • Open/Short ILIM detection

The TPS25940 eFuse Power Switch is a compact, feature rich power management device with a full suite of protection functions, including a low power DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating range allows control of many popular DC bus voltages. Integrated back to back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and the low IQ DevSleep mode simplify SSD power management design.

The TPS25940 monitors V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) - 10 mV). This function supports swift changeover to a boosted voltage energy storage element in systems where backup voltage is greater than bus voltage.

The TPS25940 eFuse Power Switch is a compact, feature rich power management device with a full suite of protection functions, including a low power DevSleep™ mode that supports compliance with the SATA™ Device Sleep standard. The wide operating range allows control of many popular DC bus voltages. Integrated back to back FETs provide bidirectional current control making the device well suited for systems with load side holdup energy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features including overcurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output. Precise programmable undervoltage, overvoltage thresholds and the low IQ DevSleep mode simplify SSD power management design.

The TPS25940 monitors V(IN) and V(OUT) to provide true reverse current blocking when V(IN) < (V(OUT) - 10 mV). This function supports swift changeover to a boosted voltage energy storage element in systems where backup voltage is greater than bus voltage.
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Documentación técnica

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* Data sheet TPS25940x 2.7 – 18V eFuse with True Reverse Blocking and DevSleep Support for SSDs datasheet (Rev. A) PDF | HTML 26 mar 2015
Certificate TPS25940 CB Test Certificate IEC 62368-1 08 jul 2021
Certificate TPS2594x UL Certificate of Compliance UL 2367 10 abr 2020
Functional safety information eFuse: Safety Certification and why it Matters 18 mar 2020
Certificate TPS25940 UL Certificate of Compliance IEC 62368-1 17 ene 2020
E-book 11 Ways to Protect Your Power Path 03 jul 2019
Application note Minimizing System Down-time with Smart eFuses 12 jun 2019
EVM User's guide TPS25940 Evaluation Module User's Guide (Rev. B) 09 jul 2018
Application note Basics of eFuses (Rev. A) 05 abr 2018
Application note Charging Super Capacitor With eFuse 08 ago 2017
Technical article How adding an eFuse will protect your brand’s reputation PDF | HTML 21 jun 2017
Application note Power Multiplexing Using Load Switches and eFuses (Rev. A) 20 jun 2017
Application note Achieve 20-A Circuit Protection and Space Efficiency Using Paralleled eFuses 03 nov 2016
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 2/3 PDF | HTML 26 may 2016
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 1/3 PDF | HTML 10 may 2016

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

TPS25940EVM-635 — Módulo de evaluación TPS25940x

The TPS25940XEVM-635 is an eFuse (Current Limiter with DEVSLP) that operates from 2.7V to 18V, and have integrated back-to-back FETs with programmable under-voltage, over-voltage, reverse-voltage, over-current and in-rush current protection. It also includes analog current monitoring in a small (...)

Guía del usuario: PDF
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Modelo de simulación

TPS25940A Unencrypted PSpice Transient Model Package (Rev. C)

SLVMAB0C.ZIP (72 KB) - PSpice Model
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Modelo de simulación

TPS25940L Unencrypted PSpice Transient Model Package (Rev. C)

SLVMAB1C.ZIP (72 KB) - PSpice Model
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Herramienta de cálculo

SLVC571 — TPS2594x Design Calculation Tool

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Fusibles electrónicos y controladores de intercambio en caliente
TPS25940 — eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa y soporte DevSleep TPS25940-Q1 — eFuse automotriz de 0.6-5.3 A, 2.7 V a 18 V, 42 mΩ, 0.6-5.3 A con monitor de corriente y protección TPS25942A — eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa, IMON y PG TPS25942L — eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa con respuesta de falla de TPS25944A — eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa y función de disyuntor de TPS25944L — eFuse de 0.6-5.2 A, 2.7 V a 18 V, 42 mΩ, con bloqueo de corriente inversa
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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.
Productos y hardware compatibles

Productos y hardware compatibles

Este recurso de diseño es compatible con la mayoría de los productos de estas categorías.

Revise la página de detalles del producto para verificar la compatibilidad.
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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de 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 (...)
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Diseños de referencia

TIDA-00429 — Interruptor de alimentación e-Fuse con interfaz SATA DevSleep

TPS25940A provides a dedicated DevSleep interface terminal (DEVSLP) to force the device in low power mode. The DEVSLP pin is compatible with standard hardware signals asserted from the host controller. When pulled high, it puts the device in low power DevSleep mode. In this mode, the quiescent (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

TIDA-00304 — Solución de almacenamiento de energía de retención de último gas

This solution stores and delivers "last gasp" energy for systems, such as SSDs, that require functionality for a short time after power loss in order to shut down in a controlled fashion. By storing holdup energy at higher than bus voltage the amount of capacitance can be reduced by up to 80%, (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RVC) 20 Ultra Librarian
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Pedidos y calidad

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  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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