Texas Instruments

TPD3S014/44 Current Limit Switch

Current limit switch and D+/D– ESD protection for USB host ports, from Texas Instruments

Image of Texas Instruments TPD3S014 Current Limit SwitchTexas Instruments' TPD3S014/44 are integrated devices that feature a current limited load switch and a two-channel Transient Voltage Suppressor (TVS) based Electrostatic Discharge (ESD) protection diode array for USB interfaces.

The TPD3S014/44 devices are intended for applications such as USB where heavy capacitive loads and short-circuits are likely to be encountered. TPD3S014/44’s provide short-circuit protection and over-current protection. They limit the output current to a safe level by operating in constant-current mode when the output load exceeds the current limit threshold. The fast overload response eases the burden on the main 5 V power supply by quickly regulating the power when the output is shorted. The rise and fall times for the current limit switch are controlled to minimize current surges when turning the device on and off.

Features  
  • Continuous current ratings of 0.5 A and 1.5 A
  • Fixed, constant-current limits of 0.85 A and 2.15 A (typ.)
  • Fast over-current response – 2 μs
  • Integrated output discharge
  • Product regulatory compliance
    • UL recognized component (UL 2367, standard for solid state over-current protectors)
    • CB file no. E169910 to IEC 60950-1, information technology equipment
  • Reverse current blocking
  • Short-circuit protection
  • Over-temperature protection with auto-restart
  • Built-in soft start
  • Ambient temperature range: –40°C to 85°C
  • IEC 61000-4-2 level 4 ESD protection (external pins)
    • ±12 kV contact discharge (IEC 61000-4-2)
    • ±15 kV air gap discharge (IEC 61000-4-2)

TPD3S014 Current Limit Switch

ImageManufacturer Part NumberDescriptionVoltage - InputOperating TemperatureMounting TypeAvailable QuantityPrice
IC CURRENT SWITCH SOT23-6TPD3S014DBVRIC CURRENT SWITCH SOT23-64.5V ~ 5.5V-40°C ~ 85°CSurface Mount11310 - Immediate$9.46View Details
IC CURRENT SWITCH SOT23-6TPD3S044DBVRIC CURRENT SWITCH SOT23-64.5V ~ 5.5V-40°C ~ 85°CSurface Mount3839 - Immediate$8.40View Details

Eval Boards

ImageManufacturer Part NumberDescriptionFunctionUtilized IC / PartContentsAvailable QuantityPrice
EVAL BOARD FOR TPD3S014TPD3S014EVMEVAL BOARD FOR TPD3S014USB Port ProtectionTPD3S014Board(s)1 - Immediate$479.72View Details
EVAL BOARD FOR TPD3S044TPD3S044EVMEVAL BOARD FOR TPD3S044USB Port ProtectionTPD3S044Board(s)4 - Immediate$479.72View Details
Published: 2015-04-15

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