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Supervisor, 1.6 V to 6.5 Vsupp., 1.8 V threshold, Programmable Watchdog Timer, Open-Drain, VSON-10


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The TPS3850G18DRCT from Texas Instruments is a TPS3850 precision voltage supervisor with programmable window watchdog timer in 10 pin VSON package. The TPS3850 window comparator achieves 0.8% accuracy for both overvoltage (VIT+(OV)) and undervoltage (VIT-(UV)) thresholds. The TPS3850 also includes accurate hysteresis on both thresholds, making the device ideal for use with tight tolerance systems. The supervisor RESET delay can be set by factory programmed default delay settings or programmed by an external capacitor. The factory-programmed RESET delay features a 15% accuracy, high precision delay timing. The TPS3850 includes a programmable window watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The window watchdog timeouts can be set by factory-programmed default delay settings or programmed by an external capacitor.
  • Nominal monitored voltage is 1.8V
  • VIT+(OV) = 4%, VIT-(UV) = -4%
  • OV and UV monitoring supports common rails from 0.9V to 5V, ±4% fault windows, 0.5% hysteresis
  • Watchdog is disabled via logic pins to avoid undesired watchdog timeouts during development process
  • Input voltage range from VDD = 1.6V to 6.5V
  • Low supply current IDD is 10µA (typ)
  • Open-drain outputs
  • Operating temperature range from -40°C to +125°C


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Active-Low, Open-Drain








MSL 2 - 1 year

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