TPS3801K33DCKR Datasheet

Supervisory Circuits


The TPS3801K33DCKR family of supervisory circuits monitorsupply voltages to provide circuit initialization andtiming supervision, primarily for DSPs and otherprocessor-based systems.These devices assert a push-pull RESET signal whenthe SENSE (adjustable version) or VDD (fixed version)drops below a preset threshold. The RESET outputremains asserted for the factory programmed delaytime after the SENSE or VDD return above itsthreshold.The TPS380x devices, except the TPS3801-01,incorporate a manual reset input (MR). A low level atMR causes RESET to become active.The TPS380x uses a precision reference to achievean overall threshold accuracy of 2%—2.5%. Thesedevices are available in a 5-pin SC-70 package,which is only about half the size of a 5-pin SOT-23 package.The TPS380x devices are fully specified over atemperature range of –40°C to +85°C. TPS3801K33DCKR Features • Small, 5-Pin SC-70 (SOT-323) Package• Supply Current of 9 mA• Power-On Reset Generator With Fixed DelayTime– TPS3800 = 100 ms– TPS3801 = 200 ms– TPS3802 = 400 ms• Precision Supply Voltage Monitor 1.8 V, 2.5 V,2.7 V, 3 V, 3.3 V, 5 V, and Adjustable• Manual Reset Input (Except TPS3801-01)• Temperature Range: –40°C to +85°C TPS3801K33DCKR Applications • Applications Using DSPs, Microcontrollers, orMicroprocessors• Wireless Communication Systems• Portable/Battery-Powered Equipment• Programmable Controls• Intelligent Instruments• Industrial Equipment• Notebook/Desktop Computers• Automotive Systems


[{"Name":"Number of Voltages Monitored: ","Value":"1"},{"Name":"Monitored Voltage: ","Value":"1.8 V, 2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, Adjustable "},{"Name":"Undervoltage Threshold: ","Value":"2.93 V"},{"Name":"Overvoltage Threshold: ","Value":"2.99 V "},{"Name":"Power-Up Reset Delay (Typ): ","Value":"200 ms"},{"Name":"Supply Voltage - Max: ","Value":"6 V "},{"Name":"Maximum Operating Temperature: ","Value":"+ 85 C"},{"Name":"Minimum Operating Temperature: ","Value":"- 40 C "},{"Name":"Supply Current (Typ): ","Value":"9 uA "},{"Name":"Supply Voltage - Min: ","Value":"2 V "}]

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