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Texas Instruments TPS2294x Load Switches

Texas Instruments TPS2294x Load Switches protect systems and loads in high-current conditions. The TI TPS22946 ultra-low power load switch contains a 300mΩ current-limited P-channel MOSFET that operates over an input voltage range of 1.62V to 5.5V and also features an ultra-low quiescent current of 1µA (typical). The TI TPS22941and TPS22944 load switches contain a 400mΩ current-limited P-channel MOSFET. Texas Instruments TPS2294x load switches are designed for use in a variety of applications, including low-current sensor protection, portable consumer electronics, mobile phones, GPS devices, and more.

Features

  • 1.62V to 5.5V Input Voltage Range
  • Ultra-low Quiescent Current 1µA (Typical) at VIN = 1.8V (TPS22946)
  • Low ON resistance protection to systems and loads in high-current conditions.
    • rON = 0.4Ω at VIN = 5.5V (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
    • rON = 0.5Ω at VIN = 3.3V (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
    • rON = 0.6Ω at VIN = 2.5V (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
    • rON = 0.8Ω at VIN = 1.8V (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
    • rON = 0.3Ω at VIN = 5.5V (TPS22946)
    • rON = 0.4Ω at VIN = 3.3V (TPS22946)
    • rON = 0.5Ω at VIN = 2.5V (TPS22946)
    • rON = 0.6Ω at VIN = 1.8V (TPS22946)
  • Minimum Current Limit: 40mA or 100mA (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
  • 155mA, 70mA, or 30mA (TPS22946) Selectable Minimum Current Limit
  • Integrated Inrush Current Time-out (8ms) (TPS22946)
  • Undervoltage Lockout (UVLO)
  • Thermal Shutdown (TPS22941, TPS22942, TPS22943, TPS22944, TPS22945)
  • Shutdown Current <1μA
  • Fast Current Limit Response Time
  • Overcurrent Condition Time-out (Automatic  Disable for Permanent Overcurrent) (TPS22946)
  • Fault Blanking
  • Auto Restart
  • 1.8V Compatible Control Input Thresholds
  • ESD Performance Tested Per JESD 22
    • 4000V Human-Body Model (A114-B, Class II)
    • 1000V Charged-Device Model
  • Tiny SC-70 (DCK) Package
  • UL Recognized Component (UL File 169910)
  • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC, Device Information(1) Test Program 2 with CB Report

Applications

  • Low-Current Sensor Protection
  • HDMI Connector Protection
  • Notebooks
  • PDAs
  • GPS Devices
  • MP3 Players
  • Peripheral Ports

Datasheets

Published: 2010-02-03 | Updated: 2022-03-11