Logic-Controlled High-Side Power Switch

NX5P1000UK No Longer Manufactured
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

The NX5P1000 is an advanced power switch and ESD- protection device for USB OTG applications. The device includes under voltage and over voltage lockout, over-current, over-temperature, reverse bias and in-rush current protection circuits. These circuits are designed to isolate a VBUS OTG voltage source automatically from a VBUS interface pin when a fault condition occurs. The device features two power switch terminals, one input (VINT) and one output (VBUS). It has a current limit input (ILIM) for defining the over-current and in-rush current limit. A voltage detect output (VDET) is used to determine when VINT is in the correct voltage range. An open-drain fault output (FAULT) indicates when a fault condition has occurred and an enable input (EN) controls the state of the switch. When EN is set LOW the device enters a low-power mode, disabling all protection circuits except the undervoltage 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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Block Diagram

NX5P1000

NX5P1000 Block Diagram
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Features

Key Features

  • Wide supply voltage range from 3 V to 5.5 V
  • 30 V tolerant on VBUS
  • ISW maximum 1 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
  • Specified from −40 °C to +85 °C

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, D−, D+ and ID

Documentation

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Design Files