The TPD3S014-Q1 is an integrated device
that features 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-Q1 device is intended for applications such as USB where heavy capacitive
loads and short-circuits are likely to be encountered; the TPD3S014-Q1 provides short-circuit
protection and overcurrent protection. The TPD3S014-Q1 limits 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.
The TPD3S014-Q1 allows 0.5 A of continuous current. The TVS diode array is rated to
dissipate ESD strikes above the maximum level specified in the IEC 61000-4-2 international
The high level of integration, combined with its easy-to-route DBV package, allows this
device to provide great circuit protection for USB interfaces in applications like head units, USB
hubs, and media interfaces.
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