TPS3106K33DBVR Ultralow Supply-Current Voltage Monitor With Optional Watchdog SOT23-6 spot stock

Product Descriptions

The TPS310x and TPS311x families of supervisory  circuits provide circuit initialization and timing  supervision, primarily for DSP and processor-based  systems.

During power-on, RESET is asserted low when the  supply voltage (VDD) becomes higher than 0.4V.  Thereafter, the supervisory circuit monitors VDD and  keeps the RESET output low as long as VDD remains  below the threshold voltage (VIT–). To provide proper  system reset, after VDD surpasses the threshold  voltage, an internal timer delays the transition of the  RESET signal from low to high for the specified time.  When VDD drops below VIT–, the output transitions low  again.

All the devices of this family have a fixed-sense  threshold voltage (VIT–) set by an internal voltage  divider.

The TPS3103 and TPS3106 devices have an  active-low, open-drain RESET output and either an  integrated power-fail input (PFI) or SENSE input with  corresponding outputs for monitoring other voltages.  The TPS3110 has an active-low push/pull RESET  and a watchdog timer to monitor the operation of  microprocessors. All three devices have a manual  reset pin that can be used to force the outputs low  regardless of the sensed voltages.

The product spectrum is designed for supply voltages  of 0.9V up to 3.6V. The circuits are available in  6-pin SOT-23 packages. The TPS31xx family is  characterized for operation over a temperature range  of –40°C to 125°C.

Product Features

• Precision Supply Voltage Supervision Range: 0.9V, 1.2V, 1.5V, 1.6V, 2V, and 3.3V

• High Trip-Point Accuracy: 0.75%

• Supply Current of 1.2μA (Typical)

• RESET Defined With Input Voltages as Low as 0.4V

• Power-On Reset Generator With a Delay Time of 130ms

• Push/Pull or Open-Drain RESET Outputs

• Package Temperature Range: –40°C to 125°C

Product Applications

• Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors

• Portable and Battery-Powered Equipment

• Intelligent Instruments

• Wireless Communication Systems

• Industrial Equipment

• Notebook and Desktop Computers

Product Specification

Product Photos

For more product information, please download the PDF