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Vishay - smart switch

Mixed Media - AAC201903 vishay

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The Vishay Siliconix logic high enable SiP32431 and logic low enable SiP32432 reverse blocking controlled load switches offer ultra low 10 pA quiescent current and operate over an input range of 1.5 V to 5.5 V, without the need for a bias power rail. (Photo courtesy of Vishay Intertechnology).


Target applications

  • Wireless sensor network
  • Smart meters
  • Wearable
  • Internet of things
  • Healthcare Devices
  • Portable medical devices
  • Security systems
  • PMP, GPS, DSC

Features

  • Compact SC70-6 and TDFN4 packages
  • Ultra low quiescent current:
  • 10 pA typical at 3.3 V
  • Guaranteed maximum of 100 nA over the full operating temperature range
  • Low leakage current
  • Available in logic high and logic low enable options
  • Operate from a single power rail over an input range of 1.5 V to 5.5 V, without the need for a bias power rail
  • On-resistance down to 135 mΩ at 3 V
  • Built-in soft turn-on minimizes in-rush current
  • RoHS-compliant and halogen-free
  • ESD tolerance of 4 kV (human body model)
  • Operate over a temperature range of -40°C to +85°C


Part numbers

  • SiP32431DR3-T1GE3
  • SiP32432DR3-T1GE3
  • SiP32431DNP3-T1GE4
  • SiP32432DNP3-T1GE4


Product benefits

  • Low quiescent current extends battery life
  • One of the most critical requirements for sensor designs in battery-operated applications
  • Most competing load switches are only available with logic high enable, and thus require logic-level translation stages for low power RTC designs with logic low enable control
  • Adds to design complexity and introduces higher levels of quiescent and shutdown current
  • The logic low SiP32432 saves space and reduces energy consumption by eliminating this step
  • In designs where space is at a premium, the 1.2 mm by 1.6 mm TDFN4 package offers a 50 % smaller footprint than the SC70 6
  • 85 % lower on-resistance than directly competing devices
  • Allows for higher power capability while minimizing voltage drooping and output ripple under load dynamics


Block diagram

Vishay Smart Switch

 

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