TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 D D D D D D TPS3809 . . . DBV PACKAGE (TOP VIEW) 3-Pin SOT-23 Package Supply Current of 9 µA (Typical) Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, 5 V Power-On Reset Generator With Fixed Delay Time of 200 ms Pin-For-Pin Compatible With MAX 809 Temperature Range . . . –40°C to 85°C GND 1 3 RESET VDD 2 description 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 of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of –40°C to 85°C. typical applications TPS76333 D 3.3 V 5V IN OUT GND VDD VDD TMS320LC54x TPS3809K33 RESET RESET GND GND D D D D D D D 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. Copyright 1999, Texas Instruments Incorporated 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. POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 • DALLAS, TEXAS 75265 1 TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 AVAILABLE OPTIONS TA –40°C 40°C to 85°C DEVICE NAME TPS3809J25DBVR† TPS3809J25DBVT‡ † TPS3809L30DBVR TPS3809L30DBVT‡ TPS3809K33DBVR† TPS3809I50DBVR† THRESHOLD VOLTAGE MARKING 2.25 V PCZI 2.64 V PDAI TPS3809K33DBVT‡ TPS3809I50DBVT‡ 2.93 V PDBI 4.55 V PDCI † The DBVR passive indicates tape and reel of 3000 parts. ‡ The DBVT passive indicates tape and reel of 250 parts. ORDERING INFORMATION FUNCTION/TRUTH TABLE, TPS3809 VDD>VIT TPS380 RESET 0 L 1 H 9 J 25 DBV R Reel Package Nominal Supply Voltage Nominal Threshold Voltage Functionality Family functional block diagram TPS3809 R1 _ VDD + Reset Logic + Timer R2 GND Oscillator Reference Voltage of 1.137 V 2 POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 • DALLAS, TEXAS 75265 RESET TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 timing diagram VDD V(NOM) VIT 1.1 V t RESET 1 0 ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ td ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ td t For VDD< 1.1 V Undefined Behavior of RESET Output absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage, VDD (see Note1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C 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 absolute–maximum–rated 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 at 7 V for more than t=1000h continuously. DISSIPATION RATING TABLE PACKAGE TA <25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING DBV 437 mW 3.5 mW/°C 280 mW 227 mW recommended operating conditions at specified temperature range MIN Supply voltage, VDD Operating free-air temperature range, TA POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 • DALLAS, TEXAS 75265 MAX UNIT 2 6 V –40 85 °C 3 TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL VIT IT– TEST CONDITIONS VDD = 2.5 V to 6 V, IOH = –500 µA VDD = 3.3 V, IOH = –2 mA VDD = 6 V, IOH = –4 mA High-level output voltage Low-level output voltage VDD = 2 V to 6 V, VDD = 3.3 V, Power-up reset voltage (see Note 2) VDD = 6 V, VDD ≥ 1.1 V, Negative-going g g g input threshold voltage (see Note 3) MIN Hysteresis IDD Supply current Ci Input capacitance MAX V IOL = 500 µA 0.2 IOL = 2 mA IOL = 4 mA IOL = 50 µA 0.4 0.2 TPS3809J25 2.20 2.25 2.30 2.58 2.64 2.70 2.87 2.93 2.99 4.45 4.55 4.65 TA– 40°C to 85°C V 0.4 TPS3809L30 TPS3809K33 UNIT VDD –0.4 TPS3809I50 Vh hys TYP VDD –0.2 VDD –0.4 TPS3809J25 30 TPS3809L30 35 TPS3809K33 40 TPS3809I50 60 VDD = 2 V, Output unconnected VDD = 6 V, Output unconnected V V mV 9 12 20 25 µA VI = 0 V to VDD 5 pF NOTES: 2. The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 µs/V. 3. To ensure best stability of the threshold voltage, a bypass capacitor ( 0.1 µF ceramic) should be placed near the supply terminals. timing requirements at RL = 1 MΩ, CL = 50 pF, TA = 25°C PARAMETER tw Pulse width TEST CONDITIONS at VDD VDD = VIT– + 0.2 V, MIN VDD = VIT– – 0.2 V TYP MAX UNIT µs 3 switching characteristics at RL = 1 MΩ, CL = 50 pF, TA = 25°C PARAMETER td Delay time tPHL Propagation (delay) time, high-to-low-level output VDD to RESET delay 4 POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 TEST CONDITIONS MIN TYP MAX UNIT VDD ≥ VIT– + 0.2 V, See timing diagram 120 200 280 ms VIL = VIT– – 0.2 V, VIH = VIT– +0.2 V • DALLAS, TEXAS 75265 1 µs TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 2.75 50 TA = 25°C 2.50 40 2.25 30 2.00 TA = 25°C 1.75 1.50 TA = 85°C 1.25 TA = 0°C 1.00 0.75 TA =–40°C 0.50 I DD – Supply Current – µ A VOL – Low-Level Output Voltage – V VDD = 2.5 V 20 10 TPS3809J25 0 –10 –20 –30 –40 0.25 0 –50 0 2.5 5.0 7.5 10.0 12.5 –2 IOL – Low-Level Output Current – mA Figure 1 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 6.5 5.5 5.0 TA =–40°C 4.0 3.5 TA = 0°C 3.0 2.5 TA = 85°C 2.0 1.5 1.0 VDD = 2.5 V 2.75 TA = 25°C VOH – High-Level Output Voltage – V VOH – High-Level Output Voltage – V 3.00 VDD = 6 V 4.5 6 Figure 2 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 6.0 0 2 4 VDD – Supply Voltage – V 2.50 2.25 2.00 TA =–40°C 1.75 1.50 TA = 0°C 1.25 1.00 TA = 85°C 0.75 0.50 TA = 25°C 0.25 0.5 0 0 0 –10 –20 –30 –40 IOH – High-Level Output Current – mA –50 0 Figure 3 –10 Figure 4 POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 –2 –4 –6 –8 IOH – High-Level Output Current – mA • DALLAS, TEXAS 75265 5 TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 TYPICAL CHARACTERISTICS MINIMUM PULSE DURATION AT VDD vs VDD THRESHOLD OVERDRIVE VOLTAGE 1.001 3.5 VDD = 2.3 V t w – Minimum Pulse Duration at V DD – µs Normalized Threshold Voltage V IT (T A ), V IT (25 ° C) NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE AT VDD 1.000 0.999 0.998 0.997 0.996 0.995 –40 3.0 2.5 2.0 1.5 1.0 0.5 0 –20 0 20 40 60 TA – Free-Air Temperature – °C 85 0 0.2 Figure 6 Figure 5 6 POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 0.4 0.6 0.8 VDD – Threshold Overdrive Voltage – V • DALLAS, TEXAS 75265 1.0 TPS3809J25, TPS3809L30, TPS3809K33, TPS3809I50 3-PIN SUPPLY VOLTAGE SUPERVISORS SLVS228 – AUGUST 1999 MECHANICAL DATA DBV (R-PDSO-G3) PLASTIC SMALL-OUTLINE 0,95 0,50 0,30 0,20 M 3 1,70 1,50 0,15 NOM 3,00 2,60 2 1 Gage Plane 3,00 2,80 0,25 0°–8° 0,55 0,35 Seating Plane 1,45 0,95 0,05 MIN 0,10 4073253-2/E 05/99 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion. POST OFFICE BOX 655303 Powered by ICminer.com Electronic-Library Service CopyRight 2003 • DALLAS, TEXAS 75265 7 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 1999, Texas Instruments Incorporated Powered by ICminer.com Electronic-Library Service CopyRight 2003