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Administración de potencia
Interruptores de carga

TPS22943

ACTIVO

Interruptor de carga de 5.5 V, 0.04 A, 500 mΩ con límite de corriente y activación de activa alta

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TPS22943

ACTIVO
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Detalles del producto

Product type Load switches Current limit type Fixed Vin (max) (V) 5.5 Vin (min) (V) 1.62 Imax (A) 0.08, 0.2 Rating Catalog Features Inrush current control, Thermal shutdown, Under voltage lock out Number of channels 1 Quiescent current (Iq) (typ) (µA) 40 Shutdown current (ISD) (typ) (µA) 1 Soft start Fixed Rise Time Ron (typ) (mΩ) 500 Operating temperature range (°C) -40 to 85
Product type Load switches Current limit type Fixed Vin (max) (V) 5.5 Vin (min) (V) 1.62 Imax (A) 0.08, 0.2 Rating Catalog Features Inrush current control, Thermal shutdown, Under voltage lock out Number of channels 1 Quiescent current (Iq) (typ) (µA) 40 Shutdown current (ISD) (typ) (µA) 1 Soft start Fixed Rise Time Ron (typ) (mΩ) 500 Operating temperature range (°C) -40 to 85
SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm)
  • Input Voltage Range: 1.62 V to 5.5 V
  • Low ON resistance
    • rON = 0.4 Ω at VIN = 5.5 V
    • rON = 0.5 Ω at VIN = 3.3 V
    • rON = 0.6 Ω at VIN = 2.5 V
    • rON = 0.8 Ω at VIN = 1.8 V
  • Minimum Current Limit: 40 mA or 100 mA
  • Undervoltage Lockout (UVLO)
  • Thermal Shutdown
  • Shutdown Current < 1 µA
  • Fast Current Limit Response Time
  • Fault Blanking
  • Auto Restart
  • 1.8-V Compatible Control Input Thresholds
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Tiny SC-70 (DCK) Package
  • UL Recognized Component (UL File 169910)
  • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,
    Test Program 2 with CB Report
  • Input Voltage Range: 1.62 V to 5.5 V
  • Low ON resistance
    • rON = 0.4 Ω at VIN = 5.5 V
    • rON = 0.5 Ω at VIN = 3.3 V
    • rON = 0.6 Ω at VIN = 2.5 V
    • rON = 0.8 Ω at VIN = 1.8 V
  • Minimum Current Limit: 40 mA or 100 mA
  • Undervoltage Lockout (UVLO)
  • Thermal Shutdown
  • Shutdown Current < 1 µA
  • Fast Current Limit Response Time
  • Fault Blanking
  • Auto Restart
  • 1.8-V Compatible Control Input Thresholds
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Tiny SC-70 (DCK) Package
  • UL Recognized Component (UL File 169910)
  • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,
    Test Program 2 with CB Report

The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.

These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.

This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°C.

The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.

These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.

This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°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 TPS2294x Low-input-voltage Current-limited Load Switches With Shut Off And Auto-Restart Feature datasheet (Rev. D) PDF | HTML 10/07/2014
Nota sobre la aplicación Load Switch Thermal Considerations (Rev. A) 11/10/2018
Nota sobre la aplicación Basics of Load Switches (Rev. A) 5/09/2018
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Selecting a Load Switch to Replace a Discrete Solution 30/04/2017
Nota sobre la aplicación Timing of Load Switches 27/04/2017
Nota sobre la aplicación Managing Inrush Current (Rev. A) 28/05/2015

Diseño y desarrollo

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Placa de evaluación

TPS22945EVM-082 — Módulo de evaluación TPS22945

The TPS22945EVM-082 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22945 load switch. The VIN and VOUT connections to the device and the PCB layout routing provide a low resistance pathway into and out of the device under test. Test point connections allow the (...)

Guía del usuario: PDF
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Modelo de simulación

TPS22943 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAG6A.ZIP (56 KB) - Modelo PSpice
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