Details, datasheet, quote on part number: TPS3809L30
CategoryPower Management => Supervisory Circuits => Microprocessor Supervisors => 3-Pin/5-Pin
Description3-pin Supply Voltage Supervisors
CompanyTexas Instruments, Inc.
DatasheetDownload TPS3809L30 datasheet
Cross ref.Similar parts: ISL88001IH26Z-T, MAX690AC/D, MAX690ACPA, MAX690AEPA, MAX690AMJA, MAX690EJA, MAX690EPA, MAX690MJA, MAX690RCPA, MAX690RCSA
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Features, Applications

3-Pin SOT-23 Package Supply Current 9 µA (Typical) Precision Supply Voltage Monitor 5 V Power-On Reset Generator With Fixed Delay Time 200 ms Pin-For-Pin Compatible With MAX 809 Temperature Range. to 85°C


The TPS3809 family of supervisory circuits 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. 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 product spectrum is designed for supply voltages 3.3 V, and 5 V. The circuits are available 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range to 85°C.

typical applications

Applications Using DSPs, Microcontrollers, or Microprocessors Wireless Communication Systems Portable/Battery-Powered Equipment Programmable Controls Intelligent Instruments Industrial Equipment Notebook/Desktop Computers Automotive Systems

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.


The DBVR passive indicates tape and reel of 3000 parts. The DBVT passive indicates tape and reel of 250 parts. FUNCTION/TRUTH TABLE, TPS3809 VDD>VIT 0 1 RESET H TPS380 ORDERING INFORMATION J 25 DBV R Reel Package Nominal Supply Voltage Nominal Threshold Voltage Functionality Family

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Supply voltage, VDD (see 7 V All other pins (see Note 7 V Maximum low output current, IOL. 5 mA Maximum high output current, IOH. ­5 mA Input clamp current, IIK (VI<0 or VI>VDD). ±20 mA Output clamp current, IOK (VO<0 or VO>VDD). ±20 mA Continuous total power dissipation. See Dissipation Rating Table Operating free-air temperature range, TA. to 85°C Storage temperature range, Tstg. to 150°C Soldering temperature. 260°C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute­maximum­rated conditions for extended periods may affect device reliability. NOTE 1: All voltage values are with respect to GND. For reliable operation the device should not be operated 7 V for more than t=1000h continuously. DISSIPATION RATING TABLE PACKAGE DBV TA <25°C POWER RATING 437 mW DERATING FACTOR ABOVE 25°C 3.5 mW/°C = 70°C POWER RATING = 85°C POWER RATING 227 mW

recommended operating conditions at specified temperature range
MIN Supply voltage, VDD Operating free-air temperature range, 2 ­40 MAX 6 85 UNIT V °C


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