TLV3491AIDBVT

TLV 3491 TLV 3492 TLV3 ® 494 TLV 349 4 TLV3491 TLV3492 TLV3494 SBOS262C – DECEMBER 2002 – REVISED MAY 2004 1.8V, Nanopower, PUSH-PULL OUTPUT COMPARATOR FEATURES q VERY LOW SUPPLY CURRENT: 0.8µA (typ) q INPUT COMMON-MODE RANGE 200mV BEYOND SUPPLY RAILS q SUPPLY VOLTAGE: +1.8V to +5.5V q HIGH SPEED: 6µs q PUSH-PULL CMOS OUTPUT STAGE q SMALL PACKAGES: SOT23-5 (Single) SOT23-8 (Dual) DESCRIPTION The TLV349x family of push-pull output comparators features a fast 6µs response time and < 1.2µA (max) nanopower capability, allowing operation from 1.8V – 5.5V. Input common-mode range beyond supply rails make the TLV349x an ideal choice for low-voltage applications. Micro-sized packages provide options for portable and spacerestricted applications. The single (TLV3491) is available in SOT23-5 and SO-8. The dual (TLV3492) comes in SOT23-8 and SO-8. The quad (TLV3494) is available in TSSOP-14 and SO-14. The TLV349x is excellent for power-sensitive, low-voltage (2-cell) applications. APPLICATIONS q q q q q PORTABLE MEDICAL EQUIPMENT WIRELESS SECURITY SYSTEMS REMOTE CONTROL SYSTEMS HANDHELD INSTRUMENTS ULTRA-LOW POWER SYSTEMS TLV349x RELATED PRODUCTS PRODUCT TLV370x TLV340x FEATURES 560nA, 2.5V to 16V, Push-Pull CMOS Output Stage Comparator 550nA, 2.5V to 16V, Open Drain Output Stage Comparator 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. All trademarks are the property of their respective owners. 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. Copyright © 2002-2004, Texas Instruments Incorporated www.ti.com ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage ................................................................................. +5.5V Signal Input Terminals, Voltage(2) .................. (V–) – 0.5V to (V+) + 0.5V Current(2) .................................................. ±10mA Output Short-Circuit(3) .............................................................. Continuous Operating Temperature .................................................. –40°C to +125°C Storage Temperature ..................................................... –65°C to +150°C Junction Temperature .................................................................... +150°C Lead Temperature (soldering, 10s) ............................................... +300°C ESD Rating (Human Body Model) .................................................. 3000V NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. (2) Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails should be current limited to 10mA or less. (3) Short-circuit to ground, one amplifier per package. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION(1) PACKAGE DESIGNATOR DBV SPECIFIED TEMPERATURE RANGE –40°C to +125°C PACKAGE MARKING VBNI ORDERING NUMBER TLV3491AIDBVT TLV3491AIDBVR TLV3491AID TLV3491AIDR TLV3492AIDCNT TLV3492AIDCNR TLV3492AID TLV3492AIDR TLV3494AIPWT TLV3494AIPWR TLV3494AID TLV3494AIDR TRANSPORT MEDIA, QUANTITY Tube, 250 Tape and Reel, 3000 Tube, 100 Tube, 2500 Tube, 250 Tape and Reel, 3000 Tube, 100 Tape and Reel, 2500 Tape and Reel, 94 Tape and Reel, 2500 Tape and Reel, 58 Tape and Reel, 2500 PRODUCT TLV3491 PACKAGE-LEAD SOT23-5 " TLV3491 " SO-8 " D " –40°C to +125°C " TLV3491 " TLV3492 " SOT23-8 " DCN " –40°C to +125°C " VBO1 " TLV3492 " SO-8 " D " –40°C to +125°C " TLV3492 " TLV3494 " TSSOP-14 " PW " –40°C to +125°C " TLV3494 " TLV3494 " SO-14 " D " –40°C to +125°C " TLV3494 " " " " " NOTE: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet. PIN CONFIGURATIONS Top View Out V– +In 1 2 3 5 V+ SOT23-5 VBNI TLV3491 SO-8 Out A Out A 1 8 V+ Out B –In B +In B 1 2 3 4 5 6 7 TSSOP-14 SO-14 TLV3494 14 Out D 13 –In D 12 +In D 11 V– 10 +In C 9 8 –In C Out C –In A +In A V+ +In B –In B Out B VBO1 4 –In –In A +In A V– 2 3 4 7 6 5 NC(1) –In +In V– 1 2 3 4 8 7 6 5 NC(1) V+ Output NC(1) SOT23-8 SO-8 NOTES: (1) NC means no internal connection. 2 TLV3491, 3492, 3494 www.ti.com SBOS262C ELECTRICAL CHARACTERISTICS: VS = +1.8V to +5.5V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, and VS = +1.8V to +5.5V, unless otherwise noted. TLV3491, TLV3492, TLV3494 PARAMETER OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply INPUT BIAS CURRENT Input Bias Current Input Offset Current INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio VOS dVOS/dT PSRR VCM = 0V, IO = 0V TA = –40°C to +125°C VS = 1.8V to 5.5V VCM = VCC/2 VCM = VCC/2 (V–) – 0.2V 60 54 CONDITION MIN TYP ±3 MAX ±15 1000 ±10 ±10 (V+) + 0.2V 74 62 UNITS mV µV/°C µV/V pA pA ±12 350 ±1 ±1 IB IOS VCM CMRR VCM = –0.2V to (V+) – 1.5V VCM = –0.2V to (V+) + 0.2V V dB dB INPUT CAPACITANCE Common-Mode Differential SWITCHING CHARACTERISTICS Propagation Delay Time, Low-to-High Propagation Delay Time, High-to-Low Rise Time Fall Time OUTPUT Voltage Output High from Rail Voltage Output Low from Rail Short-Circuit Current POWER SUPPLY Specified Voltage Operating Voltage Range Quiescent Current(1) TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance, θJA SOT23-5, SOT23-8 SO-8 SO-14, TSSOP-14 NOTE: (1) IQ per channel. f = 10kHz, VSTEP = 1V Input Overdrive = 10mV Input Overdrive = 100mV Input Overdrive = 10mV Input Overdrive = 100mV CL = 10pF CL = 10pF VS = 5V IOUT = 5mA IOUT = 5mA 2 4 pF pF µs µs µs µs ns ns t(PLH) t(PHL) tR tF VOH VOL ISC VS IQ 12 6 13.5 6.5 100 100 90 160 See Typical Characteristics 200 200 mV mV 1.8 1.8 VO = 5V, VO = High –40 –40 –65 200 150 100 0.85 5.5 5.5 1.2 V V µA °C °C °C °C/W °C/W °C/W +125 +125 +150 TLV3491, 3492, 3494 SBOS262C www.ti.com 3 TYPICAL CHARACTERISTICS At TA = +25°C, VS = +1.8V to +5.5V, and Input Overdrive = 100mV, unless otherwise noted. QUIESCENT CURRENT vs TEMPERATURE 1.00 0.95 Quiescent Current (µA) 0.90 VDD = 5V 0.85 VDD = 1.8V 0.80 0.75 0.70 0.65 0.60 –50 –25 0 25 50 75 100 125 Temperature (°C) VDD = 3V 10 12 QUIESCENT CURRENT vs OUTPUT SWITCHING FREQUENCY VS = 5V Quiescent Current (µA) 8 6 4 2 0 1 10 100 1k Output Transition Frequency (Hz) VS = 3V VS = 1.8V 10k 100k SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE 140 120 Short-Circuit Current (mA) INPUT BIAS CURRENT vs TEMPERATURE 45 40 Input Bias Current (pA) 35 30 25 20 15 10 5 0 100 Sink 80 60 40 20 0 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Supply Voltage (V) Source –5 –50 –25 0 25 50 75 100 125 Temperature (°C) OUTPUT LOW vs OUTPUT CURRENT 0.25 0.25 OUTPUT HIGH vs OUTPUT CURRENT VDD = 3V 0.2 VDD = 1.8V VOL (V) 0.2 VDD = 3V VS – VOH (V) 0.15 VDD = 1.8V 0.15 VDD = 5V 0.1 0.1 VDD = 5V 0.05 0.05 0 0 2 4 6 8 10 12 Output Current (mA) 0 0 2 4 6 8 10 12 Output Current (mA) 4 TLV3491, 3492, 3494 www.ti.com SBOS262C TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = +1.8V to +5.5V, and Input Overdrive = 100mV, unless otherwise noted. 80 70 60 PROPAGATION DELAY (tPLH) vs CAPACITIVE LOAD 80 70 60 50 tPHL (µs) PROPAGATION DELAY (tPHL) vs CAPACITIVE LOAD 50 tPLH (µs) VDD = 5V 40 VDD = 3V 30 20 10 0 0.01 VDD = 1.8V VDD = 3V 40 30 20 10 0 0.01 VDD = 5V VDD = 1.8V 0.1 1 10 100 1k 0.1 1 10 100 1k Capacitive Load (nF) Capacitive Load (nF) 20 18 16 tPLH (µs) PROPAGATION DELAY (tPLH) vs INPUT OVERDRIVE 20 18 16 PROPAGATION DELAY (tPHL) vs INPUT OVERDRIVE tPHL (µs) 14 12 10 8 6 4 0 10 VDD = 5V 14 12 VDD = 1.8V 10 8 6 4 VDD = 5V 0 10 20 30 40 50 60 70 80 90 100 VDD = 3V VDD = 3V VDD = 1.8V 20 30 40 50 60 70 80 90 100 Input Overdrive (mV) Input Overdrive (mV) 8.0 7.5 7.0 PROPAGATION DELAY (tPLH) vs TEMPERATURE 8.0 7.5 7.0 PROPAGATION DELAY (tPHL) vs TEMPERATURE VDD = 1.8V VDD = 3V VDD = 1.8V 6.5 tPLH (µs) 6.5 tPHL (µs) VDD = 3V 6.0 5.5 5.0 4.5 4.0 –50 –25 0 25 50 75 100 125 Temperature (°C) VDD = 5V 6.0 5.5 VDD = 5V 5.0 4.5 4.0 –50 –25 0 25 50 75 100 125 Temperature (°C) TLV3491, 3492, 3494 SBOS262C www.ti.com 5 TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = +1.8V to +5.5V, and Input Overdrive = 100mV, unless otherwise noted. PROPAGATION DELAY (tPLH) VDD = ±2.5V VIN+ PROPAGATION DELAY (tPHL) VDD = ±2.5V 500mV/div VIN– 500mV/div VIN– VIN+ VOUT VOUT 2V/div 2µs/div 2V/div 2µs/div PROPAGATION DELAY (tPLH) VDD = ±0.9V 500mV/div VIN+ PROPAGATION DELAY (tPHL) VDD = ±0.9V VIN– 500mV/div VIN– VIN+ 2V/div 2V/div VOUT VOUT 2µs/div 2µs/div 6 TLV3491, 3492, 3494 www.ti.com SBOS262C APPLICATIONS INFORMATION The TLV349x family of comparators features rail-to-rail input and output on supply voltages as low as 1.8V. The push-pull output stage is optimal for reduced power budget applications and features no shoot-through current. Low supply voltages, common-mode input range beyond supply rails, and a typical supply current of 0.8µA make the TLV349x family an excellent candidate for battery-powered applications with single-cell operation. SETTING REFERENCE VOLTAGE It is important to use a stable reference when setting the transition point for the TLV349. The REF1004 provides a 1.25V reference voltage with low drift and only 8µA of quiescent current. EXTERNAL HYSTERESIS Comparator inputs have no noise immunity within the range of specified offset voltage (±15mV). For noisy input signals, the comparator output may display multiple switching as input signals move through the switching threshold. The typical comparator threshold of the TLV349x is ±15mV. To prevent multiple switching within the comparator threshold of the TLV349x, external hysteresis may be added by connecting a small amount of feedback to the positive input. Figure 2 shows a typical topology used to introduce hysteresis, described by the equation: V + × R1 R1 + R 2 BOARD LAYOUT Figure 1 shows the typical connections for the TLV349x. To minimize supply noise, power supplies should be capacitively decoupled by a 0.01µF ceramic capacitor in parallel with a 10µF electrolytic capacitor. Comparators are very sensitive to input noise. Proper grounding (use of ground plane) and guarding of high-impedance nodes will help maintain specified performance of the TLV349x family. VHYST = V+ VHYST will set the value of the transition voltage required to switch the comparator output by increasing the threshold region, thereby reducing sensitivity to noise. 0.01µF 10µF VIN TLV349x VREF VOUT V+ VHYST = 0.38V VIN 5.0V TLV349x VOUT FIGURE 1. Basic Connections of the TLV349x. R2 560kΩ R1 39kΩ VREF FIGURE 2. Adding Hysteresis to the TLV349x. TLV3491, 3492, 3494 SBOS262C www.ti.com 7 APPLICATIONS RELAXATION OSCILLATOR The TLV349x can be configured as a relaxation oscillator to provide a simple and inexpensive clock output (see Figure 3.) The capacitor is charged at a rate of 0.69RC. It also discharges at a rate of 0.69RC. Therefore, the period is 1.38RC. R1 may be a different value than R2. VC 2/3 (V+) 1/3 (V+) V+ T1 T2 C 1000pF V+ R1 1MΩ t VOUT a simple resistor divider. These resistor values should be relatively high to reduce the current consumption of the circuit. The positive input is an RC circuit that provides a power-up delay. When power is applied, the output of the comparator is low, holding the processor in the reset condition. Only after allowing time for the supply voltage to stabilize does the positive input of the comparator become higher than the negative input, resulting in a high output state, and releasing the processor for operation. The stabilization time required for the supply voltage is adjustable by the selection of the RC component values. Use of a lowervalued resistor in this portion of the circuit will not increase current consumption because no current flows through the RC circuit after the supply has stabilized. The reset delay time needed depends on the power-up characteristics of the system power supply. R1 and C1 are selected to allow enough time for the power supply to stabilize. D1 provides rapid reset if power is lost. In this example, the R1 • C1 time constant is 10mS. R2 1MΩ V+ R2 1MΩ R2 1MΩ t F = 724Hz R1 1MΩ V+ MSP430 FIGURE 3. TLV349x Configured as a Relaxation Oscillator. C1 10nF R2 2MΩ TLV349x RESET POWER-ON RESET The reset circuit shown in Figure 4 provides a time delayed release of reset to the MSP430 microcontroller. Operation of the circuit is based on a stabilization time constant of the supply voltage, rather than on a predetermined voltage value. The negative input is a reference voltage created by R3 2MΩ FIGURE 4. The TLV349x Configured as a Reset Circuit for the MSP430. 8 TLV3491, 3492, 3494 www.ti.com SBOS262C PACKAGE OPTION ADDENDUM www.ti.com 9-Dec-2004 PACKAGING INFORMATION Orderable Device TLV3491AID TLV3491AIDBVR TLV3491AIDBVT TLV3491AIDR TLV3492AID TLV3492AIDCNR TLV3492AIDCNT TLV3492AIDR TLV3494AID TLV3494AIDR TLV3494AIPWR TLV3494AIPWT (1) Status (1) ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE Package Type SOIC SOT-23 SOT-23 SOIC SOIC SOT23 SOT23 SOIC SOIC SOIC TSSOP TSSOP Package Drawing D DBV DBV D D DCN DCN D D D PW PW Pins Package Eco Plan (2) Qty 8 5 5 8 8 8 8 8 14 14 14 14 100 3000 250 2500 100 3000 250 2500 58 2500 2500 250 None None None None None None None None None None None None Lead/Ball Finish CU SNPB CU NIPDAU CU NIPDAU CU SNPB CU SNPB CU SNPB CU SNPB CU SNPB CU SNPB CU SNPB CU SNPB CU SNPB MSL Peak Temp (3) Level-3-235C-168 HR Level-3-250C-168 HR Level-3-250C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR Level-3-235C-168 HR The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. None: Not yet available Lead (Pb-Free). Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight. (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) 14 PINS SHOWN PLASTIC SMALL-OUTLINE PACKAGE 0,65 14 8 0,30 0,19 0,10 M 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 A 7 0°– 8° 0,75 0,50 Seating Plane 1,20 MAX 0,15 0,05 0,10 PINS ** DIM A MAX 8 14 16 20 24 28 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 4040064/F 01/97 NOTES: A. B. C. D. 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