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US1528 - CMOS IC

General Description

The UTC US1528 is an integrated high-side power switch.

It is designed particularly for self-powered and bus-powered USB (Universal serial bus) applications.

The UTC US1528 meets the requirements of the USB.

Key Features

  • S.
  • Open-Drain Fault Flag.
  • Low on-Resistance MOSFET: Typical 110mΩ(at 5.0V).
  • Operating Voltage Varying From 3.0V to 5.5V.
  • Output can be Forced Higher than Input when Operating in Off State.
  • Slow Turn-On (Soft-Start) and Fast Turn-Off.
  • On-State Supply Current: 100 µA (TYP).
  • Standby Supply Current: 1µA (TYP).
  • Current Limit: 1.4A (TYP).
  • Thermal Shutdown Protection Circuit.
  • UVLO (Under-Voltage Lockout): 2.4V (TYP).
  • Logic Level Enable Pin, Availa.

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Other Datasheets by Unisonic Technologies

Part Number Description
US12231 POWER INTERFACE SWITCH
US1651 PRIMARY-SIDE REGULATION PWM POWER SWITCH
US1652 PRIMARY-SIDE REGULATION PWM POWER SWITCH
US16855 DUAL HIGH-SIDE SWITCH
US1702 HIGH PERFORMANCE CURRENT MODE POWER SWITCH

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UNISONIC TECHNOLOGIES CO., LTD US1528 Preliminary USB HIGH-SIDE POWER SWITCH ADVANCE INFORMATION „ DESCRIPTION The UTC US1528 is an integrated high-side power switch. It is designed particularly for self-powered and bus-powered USB (Universal serial bus) applications. The UTC US1528 meets the requirements of the USB. The low on-resistance of the switch meets USB voltage drop requirements. When the output load becomes higher than the current-limit threshold, the UTC US1528 switches into constant- current mode and limits the output current at 1.4A (TYP). An open-drain flag, playing a role as the MOSFET output, is included to indicate error conditions to the local USB controller.