Processor Supervisory Circuits With Power-Fail

The TPS3705, TPS3707 family of Microprocessor supply-voltage supervisors provide circuit initialization and Timing supervision, primarily for DSP and processor-based systems.
During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply Voltage Supervisor 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, tdtyp = 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 TPS3705-xx and TPS3707-xx devices incorporate a manual reset input, MR. A low level at MR causes RESET to become active.
The TPS370x-xx families integrate a power-fail Comparator which CAN be used for low-battery detection, power-fail warning, or for monitoring a power supply other than the main supply.
The TPS3705-xx devices have a watchdog Timer that is periodically triggered by a positive or negative transition at WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, tt(out) = 1.6 s, WDO becomes active. This event also reinitializes the watchdog Timer Leaving WDI unconnected disables the watchdog.
The TPS3707-xx devices do not have the Watchdog function, but include a high-level output RESET.
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 either 8-pin MSOP or standard SOIC packages. The TPS3705, TPS3707 devices are characterized for operation over a temperature range of ?40C to 85C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPS3707-25D Texas Instruments Processor Supervisory Circuit With Power-Fail 8-SOIC -40 to 85
TPS3707-30DGN Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-33DGNR Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-50DR Texas Instruments Processor Supervisory Circuit With Power-Fail 8-SOIC -40 to 85
TPS3707-30DG4 Texas Instruments Processor Supervisory Circuit With Power-Fail 8-SOIC -40 to 85
TPS3707-33DGNG4 Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-50DGNRG4 Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-30D Texas Instruments Processor Supervisory Circuit With Power-Fail 8-SOIC -40 to 85
TPS3707-33DGN Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-50DGNR Texas Instruments Processor Supervisory Circuit With Power-Fail 8-MSOP-PowerPAD -40 to 85
TPS3707-25 's PackagesTPS3707-25 's pdf datasheet
TPS3707-25D SOIC
TPS3707-25DG4 SOIC
TPS3707-25DGN MSOP
TPS3707-25DGNG4 MSOP
TPS3707-25DGNR MSOP
TPS3707-25DGNRG4 MSOP
TPS3707-25DR SOIC
TPS3707-25DRG4 SOIC




TPS3707-25 Pinout, Pinouts
TPS3707-25 pinout,Pin out
This is one package pinout of TPS3707-25,If you need more pinouts please download TPS3707-25's pdf datasheet.

TPS3707-25 Application circuits
TPS3707-25 circuits
This is one application circuit of TPS3707-25,If you need more circuits,please download TPS3707-25's pdf datasheet.


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