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US2175 - DUAL USB HIGH-SIDE POWER SWITCH

General Description

The US2175 is a high-side power switch with two channels.

It particularly designed for the Universal Serial Bus (USB) including self-powered and bus-powered types.

The RDS(ON) of the MOSFET switch is as low as 110mΩ.

Key Features

  • Open-Drain Fault Flag.
  • High-Side MOSFET Switch with 5V Input Voltage.
  • 110mΩ RDS(ON) Meets USB Voltage Drop Requirements for Maximum Transmission Wire Length.
  • Load Current: 500mA.
  • Output Can be Forced Higher Than Input (Off-State).
  • On-State Supply Current: 65μA (TYP. ).
  • Off-State Supply Current:.1μA (TYP. ).
  • Current-Limit / Short Circuit Protection and Thermal Shutdown Protection Under Overcurrent Condition.
  • UVLO Makes the Switch OFF at Start UP.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD US2175 DUAL USB HIGH-SIDE POWER SWITCH „ DESCRIPTION CMOS IC The US2175 is a high-side power switch with two channels. It particularly designed for the Universal Serial Bus (USB) including self-powered and bus-powered types. The RDS(ON) of the MOSFET switch is as low as 110mΩ. The US2175 incorporates protective functions, such as overcurrent protection, thermal shutdown and UVLO (UnderVoltage Lockout) protection circuits. The thermal shutdown function provides individual control for each switch. An open-drain fault flag playing a role as the output of an N-channel is also included. Once any error occurs the fault flag will be in active. The US2175 can be applied in hot plug in power supplies and battery charger circuits as well.