Logic-Controlled High-Side Power Switch

NX5P2090UK
  • Archived
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

The NX5P2090 is an advanced power switch for USB OTG applications. It includes under-voltage and over-voltage lockout, over-current, over-temperature, reverse bias and in-rush current protection circuits. These are designed to automatically isolate a VBUS OTG voltage source from a VBUS interface pin when a fault occurs. The device features two power switch terminals, one input (VINT) and one output (VBUS); a current limit input (ILIM) for defining the over-current and in-rush current limit; a voltage detect output (VDET) to monitor the voltage level on VBUS; an open-drain fault output (FAULT) to indicate when a fault condition has occurred and an enable input (EN) to control the state of the switch. When EN is set LOW the device enters a low-power mode, disabling all protection circuits except the under-voltage lockout. The low-power mode can be entered at anytime unless the over temperature protection circuit has been triggered.

Designed for operation from 3 V to 5.5 V, it is used in power domain isolation applications to protect from out of range operation. The enable input includes integrated logic level translation making the device compatible with lower voltage processors and controllers.

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Product Details

Block Diagram

NX5P2090 Block Diagram

NX5P2090 Block Diagram
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Features

  • Wide supply voltage range from 3 V to 5.5 V
  • 30 V tolerant on VBUS
  • ISW maximum 2 A continuous current
  • Very low ON resistance: 100 mΩ (maximum) at a supply voltage of 4.0 V
  • Low-power mode (ground current 20 μA typical)
  • 1.8 V control logic
  • Soft start turn-on slew rate
  • Protection circuitry:
    • Over-temperature protection
    • Over-current protection with low current output mode
    • Reverse bias current/Back drive protection
    • Over-voltage lockout
    • Under-voltage lockout
    • Analog voltage limited VBUS monitor path
  • ESD protection:
    • HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2 kV
    • IEC61000-4-2 contact discharge exceeds 8 kV for pins VBUS
  • Specified from -40 °C to +85 °C

Target Applications

  • USB OTG applications

Documentation

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