Inicio Gestión de la energía Interruptores de potencia Fusibles electrónicos y controladores de intercambio en caliente

TPS25942A

ACTIVO

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

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 Fault response Auto-retry 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 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
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 Fault response Auto-retry 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 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Reverse current blocking, Short circuit protection, Thermal shutdown Quiescent current (Iq) (typ) (A) 0.0058 Quiescent current (Iq) (max) (A) 0.008
WQFN (RVC) 20 12 mm² 4 x 3
  • 2.7 V to 18 V Operating Voltage, 20 V (Maximum)
  • 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)
  • 15-µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Thresholds
  • Reverse Current Blocking
  • 1-µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • Two Overcurrent Fault Response Options
    • TPS25942: I(LIMIT) with Thermal Shutdown
    • TPS25944: 4 ms Fault Timer then Shutoff
  • –40°C to +125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A Maximum)
  • UL60950 Safe during Single Point Failure
    • Open-Short ILIM detection
  • 2.7 V to 18 V Operating Voltage, 20 V (Maximum)
  • 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)
  • 15-µA Disabled IQ (Typical)
  • ±2% Overvoltage, Undervoltage Thresholds
  • Reverse Current Blocking
  • 1-µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • Two Overcurrent Fault Response Options
    • TPS25942: I(LIMIT) with Thermal Shutdown
    • TPS25944: 4 ms Fault Timer then Shutoff
  • –40°C to +125°C Junction Temperature Range
  • UL 2367 Recognized
    • File No. 169910
    • RILIM ≥ 20 kΩ (4.81 A Maximum)
  • UL60950 Safe during Single Point Failure
    • Open-Short ILIM detection

The TPS25942, TPS25944 eFuse Power MUX is a compact, feature rich power management device with a full suite of protection functions. 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 power muxing and systems with multiple power sources.

Load, source and device protection are provided with many programmable features. Thresholds for undervoltage, overvoltage, overcurrent, dVo/dt ramp rate, power good, and in-rush current protection are all programmable to suit specific system requirements. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output.

The TPS25942, TPS25944 monitor V(IN) and V(OUT) to provide true reverse blocking from output when V(IN) < (V(OUT) – 10 mV). The device can be configured to assign Main/Auxiliary supply priority using the FLT and DMODE pins.

The TPS25942, TPS25944 eFuse Power MUX is a compact, feature rich power management device with a full suite of protection functions. 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 power muxing and systems with multiple power sources.

Load, source and device protection are provided with many programmable features. Thresholds for undervoltage, overvoltage, overcurrent, dVo/dt ramp rate, power good, and in-rush current protection are all programmable to suit specific system requirements. For system status monitoring and downstream load control, the device provides PGOOD, FLT and precise current monitor output.

The TPS25942, TPS25944 monitor V(IN) and V(OUT) to provide true reverse blocking from output when V(IN) < (V(OUT) – 10 mV). The device can be configured to assign Main/Auxiliary supply priority using the FLT and DMODE pins.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS25942x/44x 2.7 V-18 V, 5-A eFuse Power MUX With Multiple Protection Modes datasheet (Rev. D) PDF | HTML 01 nov 2017
Certificate TPS25942/44 CB Test Certificate IEC 62368-1 09 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
E-book 11 Ways to Protect Your Power Path 03 jul 2019
Application note Backplane Power Protection in PLC Systems 11 jun 2019
Application note Accurate Thermal Calculations on the Back of a Napkin 03 jun 2019
Application note Basics of Power Switches (Rev. A) PDF | HTML 26 abr 2019
Application note Basics of eFuses (Rev. A) 05 abr 2018
Technical article eFuses: clamping and cutoff and auto retry, oh my! – part 3/3 PDF | HTML 02 jun 2016
EVM User's guide TPS25942x635EVM: Evaluation Module For TPS25942x User's Guide 27 may 2014

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

TPS25942EVM-635 — Módulo de evaluación TPS25942EVM-635 para TPS25942x

The TPS25942XEVM-635 is an eFuse (Current Limiter with ENBLKb) 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
Modelo de simulación

TPS25942A PSpice Transient Model (Rev. D)

SLVMAA3D.ZIP (144 KB) - PSpice Model
Modelo de simulación

TPS25942A TINA-TI Reference Design (Rev. B)

SLVMB42B.TSC (181 KB) - TINA-TI Reference Design
Modelo de simulación

TPS25942A TINA-TI Transient Spice Model (Rev. A)

SLVMB43A.ZIP (38 KB) - TINA-TI Spice Model
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
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.

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 (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RVC) 20 Ultra Librarian

Pedidos y calidad

Información incluida:
  • 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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Soporte y capacitación

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