Product Summary

The TPS3809K33DBVT is a 3-pin supply voltage supervisor which 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 applications of the TPS3809K33DBVT 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

TPS3809K33DBVT 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 junction temperature range, TA: -40℃ to 85℃; (9)Storage temperature range, Tstg: -65℃ to 150℃.

Features

TPS3809K33DBVT features: (1)3-Pin SOT-23 Package; (2)Supply Current of 9 μA (Typical); (3)Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V; (4)Pin-For-Pin Compatible With MAX 809; (5)Temperature Range: -40℃ to +85℃.

Diagrams

TPS3809K33DBVT block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPS3809K33DBVT
TPS3809K33DBVT
Texas Instruments
Supervisory Circuits 2.93V Volt. Sup
Data Sheet
0-1: $0.56
1-25: $0.43
25-100: $0.38
100-250: $0.23
TPS3809K33DBVTG4
TPS3809K33DBVTG4
Texas Instruments
Supervisory Circuits 3-Pin Supply Voltage Supervisor
Data Sheet
0-1: $0.60
1-25: $0.46
25-100: $0.38
100-250: $0.23