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TPS22946 데이터시트 - Texas Instruments

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TPS22946 ULTRA-LOW POWER, LOW INPUT VOLTAGE, CURRENT-LIMITED LOAD SWITCH WITH SHUT-OFF, AUTO-RESTART, AND OVER-CURRENT CONDITION TIME-OUT TI
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DESCRIPTION
The TPS22946 is an ultra-low power load switch that provides protection to systems and loads in high-current conditions. The device contains a 300-mΩ current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22946 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
• Ultra-Low Quiescent Current 1 mA (typ) at VIN = 1.8 V
• Input Voltage Range: 1.62 V to 5.5 V
• Low ON-Resistance
    – rON = 300 mΩ at VIN = 5.5 V
    – rON = 400 mΩ at VIN = 3.3 V
    – rON = 500 mΩ at VIN = 2.5 V
    – rON = 600 mΩ at VIN = 1.8 V
• Selectable Minimum Current Limit: 155 mA, 70 mA, or 30 mA
• Integrated Inrush Current Timeout (8 ms)
• Shutdown Current: < 1 mA
• Thermal Shutdown
• Fault Blanking
• Auto Restart
• Over-Current Condition Timeout (Automatic Disable for Permanent Over-Current)
• 1.8-V Compatible Control Input
• ESD Performance Tested Per JESD 22
    – 6000-V Human-Body Model (A114-B, Class II)
• Tiny WCSP Package 1.4mm x 0.9 mm (YZP)

APPLICATIONS
• Fingerprint Module Protection
• Portable Consumer Electronics
• Mobile Phones
• Smartphone
• Notebooks
• GPS Devices

 

"TPS22946" 관련 부품명

부품번호상세내용PDF제조사
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