Texas Instruments TPS3899 Precision Voltage Supervisor

Texas Instruments TPS3899 Precision Voltage Supervisor

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Texas Instruments TPS3899 Precision Voltage Supervisor is a nano power, precision voltage supervisor with ±0.5% threshold accuracy, programmable sense, and reset time delay in a 6-pin space-saving 1.5mm x 1.5mm WSON package. The TPS3899 is a feature-rich voltage supervisor that offers the smallest total solution size in its class. Built-in hysteresis, along with programmable delay, prevents false reset signals when monitoring a voltage rail or push-button signals.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors is supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a “manual reset” that can be used to force a system reset.

The precision performance, best-in-class features in a compact form factor makes the Texas Instruments TPS3899 an ideal solution for wide-ranging industrial and battery-powered applications such as Factory/Building Automation, Motor Drives, and consumer products. The device is fully specified over a temperature range of –40°C to +125°C (TA)

Features

  • Precision voltage and push-button monitor
  • 0.85V to 6V (DL and PL outputs) VDD range
  • 1V to 6V (PH output) VDD range
  • Programmable sense and reset delay
  • 125nA (typ) nano quiescent current
  • ±0.5% (typ) high threshold accuracy
  • 5% (typ) precision hysteresis:
  • 0.505V (typ) adjustable threshold voltage
  • 0.8V to 5.4V fixed threshold voltage
    • Fixed threshold level available in 100mV steps
  • Multiple output topologies
    • DL – open-drain active-low
    • PL – push-pull active-low
    • PH – push-pull active-high
  • –40°C to +125°C temperature range
  • 1.5mm × 1.5mm WSON package

more information: https://www.ti.com/product/TPS3899

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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