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TPS22941 데이터시트 - Texas Instruments

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TPS22941 LOW-INPUT-VOLTAGE CURRENT-LIMITED LOAD SWITCHES WITH SHUT OFF AND AUTO-RESTART FEATURE TI
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DESCRIPTION
The TPS2294x load switches provide protection to systems and loads in high-current conditions. The devices contain a 400-mΩ 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 TPS2294x includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.

FEATURES
• 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
• 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

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

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