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TPS3103H20DBVRG4 Datasheet PDF - Texas Instruments

Part NumberTPS3103H20DBVRG4 TI
Texas Instruments TI
DescriptionUltralow Supply-Current Voltage Monitor With Optional Watchdog
TPS3103H20DBVRG4 Datasheet PDF : TPS3103H20DBVRG4 pdf   
TPS3106E09DBVR image

Description
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 0.4 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET output low as long as VDD remains below the threshold voltage (VIT–). To ensure 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 0.9 V up to 3.3 V. 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 85°C.

Features
• Precision Supply Voltage Supervision Range:
   0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
• High Trip-Point Accuracy: 0.75%
• Supply Current of 1.2 μA (Typical)
• RESET Defined With Input Voltages as Low as
   0.4 V
• Power-On Reset Generator With a Delay Time of
   130 ms
• Push/Pull or Open-Drain RESET Outputs
• Package Temperature Range: –40°C to 85°C

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

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