® OPA2544 FPO High-Voltage, High-Current DUAL OPERATIONAL AMPLIFIER FEATURES DESCRIPTION l HIGH OUTPUT CURRENT: 2A min The OPA2544 is a dual high-voltage/high-current op- l WIDE POWER SUPPLY RANGE: erational amplifier suitable for driving a wide variety – 10V to – 35V of high power loads. It provides 2A output current and power supply voltage range extends to – 35V. l SLEW RATE: 8V/m s l INTERNAL CURRENT LIMIT The OPA2544 integrates two high performance FET op amps with high power output stages on a single l THERMAL SHUTDOWN PROTECTION monolithic chip. Internal current limit and thermal l FET INPUT: I = 50pA max shutdown protect the amplifier and load from damage. B l 11-LEAD PLASTIC PACKAGE The OPA2544 is available in a 11-lead plastic packages and is specified for the –40(cid:176) C to +85(cid:176) C temperature range. APPLICATIONS l MOTOR DRIVER l PROGRAMMABLE POWER SUPPLY l SERVO AMPLIFIER l VALVES, ACTUATOR DRIVER l MAGNETIC DEFLECTION COIL DRIVER l AUDIO AMPLIFIER Case connected to V– Supply. A B 1 11 NC V+ V– International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 ® © 1994 Burr-Brown Corporation PDS-11249C OPPrinAted2 in5 U4.S4.A. March, 1998 SBOS037

SPECIFICATIONS At T = +25(cid:176)C and V = – 35V, unless otherwise noted. CASE S OPA2544T PARAMETER CONDITIONS MIN TYP MAX UNITS OFFSET VOLTAGE Input Offset Voltage – 1 – 5 mV vs Temperature Specified Temp. Range – 10 m V/(cid:176)C vs Power Supply V = – 10V to – 35V – 10 – 100 m V/V S INPUT BIAS CURRENT(1) Input Bias Current V = 0V – 15 – 50 pA CM vs Temperature Doubles every 10˚C Input Offset Current V = 0V – 10 – 50 pA CM NOISE Input Voltage Noise Noise Density, f = 1kHz 36 nV/(cid:214) Hz Current Noise Density, f = 1kHz 3 fA/(cid:214) Hz INPUT VOLTAGE RANGE Common-Mode Input Range Positive Linear Operation (V+) –6 (V+) –4 V Negative Linear Operation (V–) +6 (V–) +4 V Common-Mode Rejection VCM = – VS – 6V 90 106 dB INPUT IMPEDANCE Differential 1012 || 8 W || pF Common-Mode 1012 || 10 W || pF OPEN-LOOP GAIN Open-Loop Voltage Gain V = – 30V, R = 15W 90 103 dB O L FREQUENCY RESPONSE Gain-Bandwidth Product R = 15W 1.4 MHz L Slew Rate 60Vp-p, R = 15W 5 8 V/m s L Full-Power Bandwidth See Typical Curve Settling Time 0.1% G = –10, 60V Step 25 m s Total Harmonic Distortion See Typical Curve OUTPUT Voltage Output: Positive I = 2A (V+) –5 (V+) –4.4 V O Negative IO = 2A (V–) +5 (V–) +3.8 V Positive I = 0.5A (V+) –4.2 (V+) –3.8 V O Negative IO = 0.5A (V–) +4 (V–) +3.1 V Current Output See SOA Curves Short-Circuit Current – 4 A POWER SUPPLY Specified Operating Voltage – 35 V Operating Voltage Range – 10 – 35 V Quiescent Current (total) I = 0 – 22 – 30 mA O TEMPERATURE RANGE Operating Range –40 +85 (cid:176)C Storage –40 +125 (cid:176)C Thermal Resistance, qJC2 Both Amplifiers, f > 50Hz 2 (cid:176)C/W Thermal Resistance, q 2 Both Amplifiers, DC 2.5 (cid:176)C/W JC Thermal Resistance, q 2 One Amplifier, f > 50Hz 2.7 (cid:176)C/W JC Thermal Resistance, qJC2 One Amplifier, DC 3 (cid:176)C/W Thermal Resistance, q 2 No Heat Sink 30 (cid:176)C/W JA NOTES: (1) High-speed test at TJ = +25(cid:176)C. (2) Calculated from total power dissipation of both amplifiers. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. ® OPA2544 2

CONNECTION DIAGRAM ABSOLUTE MAXIMUM RATINGS(1) Front View 11-Lead Plastic Supply Voltage, V+ to V– ...................................................................70V Output Current.................................................................See SOA Curve Input Voltage....................................................(V–) –0.7V to (V+) +0.7V Operating Temperature.................................................–55(cid:176)C to +125(cid:176)C Storage Temperature.....................................................–40(cid:176)C to +125(cid:176)C Case Junction Temperature......................................................................150(cid:176)C connected Lead Temperature (soldering, –10s)...............................................300(cid:176)C to V– Supply. NOTE: (1) Stresses above these ratings may cause permanent damage. A B PACKAGE/ORDERING INFORMATION PACKAGE 1 11 DRAWING TEMPERATURE PRODUCT PACKAGE NUMBER(1) RANGE NC OPA2544T 11-Lead Plastic 242 –40(cid:176)C to +85(cid:176)C V+ V– NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Burr-Brown 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 degrada- tion 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. ® 3 OPA2544

TYPICAL PERFORMANCE CURVES At TCASE = +25(cid:176)C, VS = – 35V, unless otherwise noted. OPEN-LOOP GAIN AND PHASE vs FREQUENCY INPUT BIAS CURRENT vs TEMPERATURE 120 10n 100 0 80 R = 15W –45 A) 1n Gain (dB) 6400 L ––91035 Phase (°) Bias Current ( 100p IB 20 –180 nput 10p IOS I 0 –20 1p 1 10 100 1k 10k 100k 1M 10M –75 –50 –25 0 25 50 75 100 125 Frequency (Hz) Temperature (°C) CURRENT LIMIT vs TEMPERATURE QUIESCENT CURRENT vs TEMPERATURE 5 26 4 A) 24 m urrent (A) 3 Current ( 22 VS = ±35V mit C 2 cent Li uies 20 VS = ±10V 1 Q 0 18 –75 –50 –25 0 25 50 75 100 125 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) Temperature (°C) VOLTAGE NOISE DENSITY vs FREQUENCY CHANNEL CROSSTALK vs FREQUENCY 100 0 9kW 80 –20 1kW z) 60 H Voltage Noise (nV/ 2400 Crosstalk (dB) –––468000 1kW 9kW 1V5XW –100 10 –120 1 10 100 1k 10k 100k 10 100 1k 10k 100k 1M Frequency (Hz) Frequency (Hz) ® OPA2544 4

TYPICAL PERFORMANCE CURVES (CONT) At TCASE = +25(cid:176)C and VS = – 35V, unless otherwise noted. COMMON-MODE REJECTION vs FREQUENCY POWER SUPPLY REJECTION vs FREQUENCY 110 120 Mode Rejection (dB) 109870000 pply Rejection (dB) 1086000 V– Supply V+ Supply n- Su mo 60 er Com 50 Pow 40 40 20 100 1k 10k 100k 1M 1 10 100 1k 10k 100k 1M Frequency (Hz) Frequency (Hz) GAIN-BANDWIDTH PRODUCT AND SLEW RATE vs TEMPERATURE MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 2.5 35 Clipping z) 30 H M 2.0 9 andwidth Product ( 1.5 SSRR+– 8 Slew Rate (V/µS) Output Voltage (V) 22115050 SlLeiwm iRteadte B 1.0 7 n- Gai 5 0.5 6 0 –75 –50 –25 0 25 50 75 100 125 20k 100k 200k Temperature (°C) Frequency (Hz) TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 10 5 R = 15W 100mW (V+) – VO L 2W 4 1 V) %) | (UT 3 + N ( 0.1 – |VO |(V–) –VO| THD 30W | PPLY 2 U S 0.01 V | 1 0.001 0 20 100 1k 10k 20k 0 1 2 3 Frequency (Hz) Output Current (A) ® 5 OPA2544

TYPICAL PERFORMANCE CURVES (CONT) At TCASE = +25(cid:176)C and VS = – 35V, unless otherwise noted. OUTPUT VOLTAGE SWING vs TEMPERATURE 6 I = +2A 5 O I = –2A V) O | (UT 4 O V | – |Y 3 IO = +0.5A UPPL 2 IO = –0.5A S V | 1 0 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) SMALL SIGNAL RESPONSE LARGE SIGNAL RESPONSE G = 3, C = 1nF G = 3, R = 15W L L 200mV/div 5V/div 2µs/div 5µs/div ® OPA2544 6

APPLICATIONS INFORMATION The safe output current decreases as V increases. Output CE short-circuit is a very demanding case for SOA. A short- Figure 1 shows the OPA2544 connected as a basic non- circuit to ground forces the full power supply voltage (V+ inverting amplifier. The OPA2544 can be used in virtually or V–) across the conducting transistor. With V = – 35V S any op amp configuration. Power supply terminals should be the safe output current is 1.5A (at 25(cid:176) C). The short-circuit bypassed with low series impedance capacitors. The tech- current is approximately 4A which exceeds the SOA. This nique shown, using a ceramic and tantalum type in parallel, situation will activate the thermal shutdown circuit in the is recommended. Power supply wiring should have low OPA2544. For further insight on SOA, consult AB-039. series impedance and inductance. CURRENT LIMIT +35V The OPA2544 has an internal current limit set for approxi- V+ mately 4A. This current limit decreases with increasing 10µF junction temperature as shown in the typical curve, Current R + G = 1+ R 2 = 3 Limit versus Temperature. This, in combination with the 1 0.1µF thermal shutdown circuit, provides protection from many types of overload. It may not, however, protect for short- R R 1 2 5kW 10kW circuit to ground, depending on the power supply voltage, ambient temperature, heat sink and signal conditions. 1/2 VO POWER DISSIPATION OPA2544 V Power dissipation depends on power supply, signal and load IN 0.1µF ZL conditions. For DC signals, power dissipation is equal to the product of output current times the voltage across the con- 10µF + ducting output transistor. Power dissipation can be mini- mized by using the lowest possible power supply voltage necessary to assure the required output voltage swing. V– For resistive loads, the maximum power dissipation occurs –35V at a DC output voltage of one-half the power supply voltage. FIGURE 1. Basic Circuit Connections. Dissipation with AC signals is lower. Application Bulletin AB-039 explains how to calculate or measure power dissi- SAFE OPERATING AREA pation with unusual signals and loads. Stress on the output transistors is determined by the output current and the voltage across the conducting output transis- HEATSINKING tor, V . The power dissipated by the output transistor is CE Most applications require a heat sink to assure that the equal to the product of the output current and the voltage maximum junction temperature is not exceeded. The heat across the conducting transistor, V . The Safe Operating CE sink required depends on the power dissipated and on Area (SOA curve, Figure 2) shows the permissible range of ambient conditions. Consult Application Bulletin AB-038 voltage and current. for information on determining heat sink requirements. The heat sink tab of the plastic package is connected to the V– power supply terminal. Lowest thermal resistance can be SAFE OPERATING AREA achieved by mounting the tab directly to a heat sink. If the 10 heat sink cannot be electrically “hot” at V– power supply Current-Limited potential, insulating hardware must be used. 4 T = 25°C A) C nt ( Output current may THERMAL PROTECTION e urr 1 be limited to less The OPA2544 has thermal shutdown that protects the ampli- C than 4A—see text. Output 0.4 TC = 85°C fsiheur tdforowmn dciarmcuaigt ed. uArinnyg nteonrdmeanlc yo pteor aaticotniv aiste i nthdeic atthieornm oafl excessive power dissipation or an inadequate heat sink. T = 125°C C The thermal protection activates at a junction temperature 0.1 of approximately 155(cid:176) C. For reliable operation, junction 1 2 5 10 20 50 100 temperature should be limited to 150(cid:176) C, maximum. To |VS – VO| (V) estimate the margin of safety in a complete design (includ- ing heat sink), increase the ambient temperature until the FIGURE 2. Safe Operating Area. thermal protection is activated. Use worst-case load and signal conditions. For good reliability, the thermal protec- ® 7 OPA2544

tion should trigger more than 25(cid:176) C above the maximum OPA2544 are operated within their linear common-mode expected ambient condition of your application. This pro- range, and that the output can swing to 0V. The V+ power duces a junction temperature of 125(cid:176) C at the maximum supply could range from 15V to 63V. The total voltage expected ambient condition. (V– to V+) can range from 20V to 70V. With a 63V positive supply voltage, the device may not be protected from dam- Depending on load and signal conditions, the thermal pro- age during short-circuits because of the larger V during tection circuit may produce a duty-cycle modulated output CE this condition. signal. This limits the dissipation in the amplifier, but the rapidly varying output waveform may be damaging to some loads. The thermal protection may behave differently de- OUTPUT PROTECTION pending on whether internal dissipation is produced by Reactive and EMF-generating loads can return load current sourcing or sinking output current. to the amplifier, causing the output voltage to exceed the power supply voltage. This damaging condition can be UNBALANCED POWER SUPPLIES avoided with clamp diodes from the output terminal to the power supplies as shown in Figure 2. Fast-recovery rectifier Some applications do not require equal positive and negative diodes with a 4A or greater continuous rating are recom- output voltage swing. The power supply voltages of the mended. OPA2544 do not need to be equal. For example, a –7V negative power supply voltage assures that the inputs of the R 2 V+ 100kW 20pF R1 R2 G = – R 2 = –4 R 5kW 20kW R1 10k1W AV = –R2/R1 = –10 V IN VIN 0.1W A D 1 L 1/2 Master 10kW OPA2544 D 1W 2 Motor Paralleled operation not 20pF 0.01µF recommended for input 0.1W signals that can cause V– B amplifiers to slew. D, D : Motorola MUR420 1 2 Fast Recovery Rectifier. Slave FIGURE 3. Motor Drive Circuit. FIGURE 5. Paralleled Operation, Extended SOA. +35V +35V 10kW 10kW 10kW 20kW 3nF 30W A B VIN Load 1kW ±10V G = +3 120Vp-p (±60V) G = –1 –35V –35V FIGURE 4. Bridge Drive Circuit. ® OPA2544 8

PACKAGE OPTION ADDENDUM www.ti.com 13-Nov-2008 PACKAGING INFORMATION OrderableDevice Status(1) Package Package Pins Package EcoPlan(2) Lead/BallFinish MSLPeakTemp(3) Type Drawing Qty OPA2544T ACTIVE TO-220 KV 11 25 Green(RoHS& CUSN N/AforPkgType noSb/Br) OPA2544TG3 ACTIVE TO-220 KV 11 25 Green(RoHS& CUSN N/AforPkgType noSb/Br) (1)Themarketingstatusvaluesaredefinedasfollows: ACTIVE:Productdevicerecommendedfornewdesigns. LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect. NRND:Notrecommendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartin anewdesign. PREVIEW:Devicehasbeenannouncedbutisnotinproduction.Samplesmayormaynotbeavailable. OBSOLETE:TIhasdiscontinuedtheproductionofthedevice. (2)EcoPlan-Theplannedeco-friendlyclassification:Pb-Free(RoHS),Pb-Free(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheck http://www.ti.com/productcontentforthelatestavailabilityinformationandadditionalproductcontentdetails. TBD:ThePb-Free/Greenconversionplanhasnotbeendefined. Pb-Free(RoHS):TI'sterms"Lead-Free"or"Pb-Free"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirements forall6substances,includingtherequirementthatleadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesoldered athightemperatures,TIPb-Freeproductsaresuitableforuseinspecifiedlead-freeprocesses. Pb-Free(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieand package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible)asdefinedabove. Green(RoHS&noSb/Br):TIdefines"Green"tomeanPb-Free(RoHScompatible),andfreeofBromine(Br)andAntimony(Sb)basedflame retardants(BrorSbdonotexceed0.1%byweightinhomogeneousmaterial) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry 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 incomingmaterialsandchemicals.TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimited informationmaynotbeavailableforrelease. InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTI toCustomeronanannualbasis. Addendum-Page1

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