Automotive Catalog Dual Processor Supervisory Circuits With Power-Fail

The TPS3306 family is a series of Supervisory Circuits TPS3306-18-Q1 designed for circuit initialization which require two supply voltages, primarily in DSP and processor-based systems.
The product spectrum of the TPS3306-xx is designed for monitoring two independent supply voltages of 3.3 V/1.5 V, 3.3 V/1.8 V, 3.3 V/2 V, 3.3 V/2.5 V, or 3.3 V/5 V. During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the Supervisory Circuits monitor the SENSEn inputs and keep RESET active as long as SENSEn remains below the threshold voltage VIT.
An internal Timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 100 ms, starts after SENSE1 and SENSE2 inputs have risen above the threshold voltage VIT. When the voltage at SENSE1 or SENSE2 input drops below the threshold voltage VIT, the output becomes active (low) again.
The integrated power-fail (PFI) Comparator with separate open-drain (PFO) output CAN be used for low-battery detection, power-fail warning, or for monitoring a power supply other than the main supply.
The TPS3306-xx devices integrate a watchdog Timer that is periodically triggered by a positive or negative transition of WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, tt(out) = 0.50 s, RESET becomes active for the time period td. This event also reinitializes the watchdog Timer Leaving WDI unconnected disables the watchdog.
The TPS3306-xx devices are available in standard 8-pin SO packages.
The TPS3306-xxQ family is characterized for operation over a temperature range of ?40C to 125C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPS3306-15DRG4 Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-18DRG4 Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-25DG4 Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-33DG4 Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-15D Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-18D Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-20D Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-25DGKR Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-VSSOP -40 to 85
TPS3306-33DGKR Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-VSSOP -40 to 85
TPS3306-15DG4 Texas Instruments Dual-Processor Supervisory Circuit with Power-Fail and Watchdog Timer 8-SOIC -40 to 85
TPS3306-18-Q1 's PackagesTPS3306-18-Q1 's pdf datasheet
TPS3306-18QDRQ1 SOIC




TPS3306-18-Q1 Pinout, Pinouts
TPS3306-18-Q1 pinout,Pin out
This is one package pinout of TPS3306-18-Q1,If you need more pinouts please download TPS3306-18-Q1's pdf datasheet.

TPS3306-18-Q1 Application circuits
TPS3306-18-Q1 circuits
This is one application circuit of TPS3306-18-Q1,If you need more circuits,please download TPS3306-18-Q1's pdf datasheet.


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