(China (Mainland))
Product Summary
The TPS3809I50DBVR is a 3-pin supply voltage supervisor. The TPS3809I50DBVR 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. The applications of the TPS3809I50DBVR include Applications Using DSPs, Microcontrollers, or Microprocessors, Wireless Communication Systems, Portable/Battery-Powered Equipment, Programmable Controls, Intelligent Instruments, Industrial Equipment, Notebook/Desktop Computers, Automotive Systems.
Parametrics
TPS3809J25DBVR absolute maximum ratings: (1)Supply voltage, VDD: 7 V; (2)All other pins: -0.3 V to 7 V; (3)Maximum low output current, IOL: 5 mA; (4)Maximum high output current, IOH: -5 mA; (5)Input clamp current, IIK (VI<0 or VI>VDD): ±20 mA; (6)Output clamp current, IOK (VO<0 or VO>VDD): ±20 mA; (7)Continuous total power dissipation: See Dissipation Rating Table; (8)Operating free-air temperature range, TA: -40℃ to 85℃; (9)Storage temperature range, Tstg: -65℃ to 150℃; (10)Soldering temperature: 260℃.
Features
TPS3809J25DBVR features: (1)3-Pin SOT-23 Package; (2)Supply Current of 9 mA (Typical); (3)Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V; (4)Power-On Reset Generator With Fixed Delay Time of 200 ms; (5)Pin-For-Pin Compatible With MAX 809; (6)Temperature Range: -40℃ to 85℃.
Diagrams
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 TPS3809J25DBVR |
Texas Instruments |
Supervisory Circuits 2.25V V Sup |
Data Sheet |
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TPS3809J25DBVRG4 |
Texas Instruments |
Supervisory Circuits 3-Pin Supply Voltage Supervisor |
Data Sheet |
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