3-Pin Supply Voltage Supervisor

The TPS3809 family of Supervisory Circuits provides circuit initialization and Timing supervision, primarily for DSPs and processor-based systems.
During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the Supervisory Circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal Timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 200 ms, starts after VDD has risen above the threshold voltage VIT. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed sense-threshold voltage VIT set by an internal voltage divider.
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of -40C to 85C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPS3809J25DBVRG4 Texas Instruments 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, GREEN, PLASTIC, SOT-23, 3 PIN
TPS3809J25QDBVRQ1 Texas Instruments 3-Pin Supply Voltage Supervisors for Automotive 3-SOT-23 -40 to 125
TPS3809J25DBVT Texas Instruments 3-pin voltage supervisor (reset IC) with active-low, push-pull reset 3-SOT-23 -40 to 85
TPS3809J25DBVTG4 Texas Instruments 3-pin voltage supervisor (reset IC) with active-low, push-pull reset 3-SOT-23 -40 to 85
TPS3809J25DBVR Texas Instruments 3-pin voltage supervisor (reset IC) with active-low, push-pull reset 3-SOT-23 -40 to 85
TPS3809J25 's PackagesTPS3809J25 's pdf datasheet
TPS3809J25DBVR SOT-23
TPS3809J25DBVRG4 SOT-23
TPS3809J25DBVT SOT-23
TPS3809J25DBVTG4 SOT-23




TPS3809J25 Pinout, Pinouts
TPS3809J25 pinout,Pin out
This is one package pinout of TPS3809J25,If you need more pinouts please download TPS3809J25's pdf datasheet.

TPS3809J25 Application circuits
TPS3809J25 circuits
This is one application circuit of TPS3809J25,If you need more circuits,please download TPS3809J25's pdf datasheet.


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