POWER OPERATIONAL AMPLIFIERS PA01 * PA73 HTTP://WWW.APEXMICROTECH.COM M I C R O T E C H N O L O G Y (800) 546-APEX (800) 546-2739 FEATURES * * * * * * LOW COST, ECONOMY MODEL -- PA01 SECOND SOURCEABLE -- PA73 HIGH OUTPUT CURRENT -- Up to 5A PEAK EXCELLENT LINEARITY -- PA01 HIGH SUPPLY VOLTAGE -- Up to 30V ISOLATED CASE -- 300V APPLICATIONS * * * * * * MOTOR, VALVE AND ACTUATOR CONTROL MAGNETIC DEFLECTION CIRCUITS UP TO 4A POWER TRANSDUCERS UP TO 20kHz TEMPERATURE CONTROL UP TO 180W PROGRAMMABLE POWER SUPPLIES UP TO 48V AUDIO AMPLIFIERS UP TO 50W RMS TYPICAL APPLICATION CF RCL+ +6V VIN R IN .33 3W 0/+5V PA01 1N4148 RCL- DESCRIPTION The PA01 and PA73 are high voltage, high output current operational amplifiers designed to drive resistive, inductive and capacitive loads. For optimum linearity, the PA01 has a class A/B output stage. The PA73 has a simple class C output stage (see Note 1) to reduce cost for motor control and other applications where crossover distortion is not critical and to provide interchangeability with type 3573 amplifiers. The safe operating area (SOA) can be observed for all operating conditions by selection of user programmable current limit resistors. These amplifiers are internally compensated for all gain settings. For continuous operation under load, a heatsink of proper rating is recommended. This hybrid integrated circuit utilizes thick film (cermet) resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermetically sealed and electrically isolated. The use of compressible thermal washers and/or improper mounting torque will void the product warranty. Please see "General Operating Considerations". .33 3W -30V OPTO PULSE GEN. F/V RF 0/-5V M 24V UNSYMMETRICAL SUPPLIES FOR EFFICIENCY Unidirectional Optical Speed Control The pulse output of a non-contact optical sensor drives a voltage-to-frequency converter which generates feedback for the op amp. With the loop closed in this manner, the op amp corrects for any variations in the speed due to changing load. Because of operation in only one direction, an unsymmetrical supply is used to maximize efficiency of both power op amp and power supply. High speed diodes at the input protect the op amp from commutator noise which may be generated by the motor. EQUIVALENT SCHEMATIC 3 Q2A * D1 * EXTERNAL CONNECTIONS Q2B 2 Q1 * Q3 2 3 +IN R CL+ CL+ +VS Q4 * Q5 1 OUTPUT 8 4 * 4 TOP VIEW -IN 1 * OUT 6 -VS 7 N.C. 8 CL- Q6B Q6A A1 5 5 R CL- C1 6 NOTE 1: * Indicates not used in PA73. Open base of Q2A connected to output of A1. APEX MICROTECHNOLOGY CORPORATION * TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 * EMAIL prodlit@apexmicrotech.com ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PA01 * PA73 ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PARAMETER PA01 60V 5A 67W VS -3V VS 200C 300C -65 to +150C -25 to +85C SUPPLY VOLTAGE, +VS to -VS OUTPUT CURRENT, within SOA POWER DISSIPATION, internal INPUT VOLTAGE, differential INPUT VOLTAGE, common-mode TEMPERATURE, junction1 TEMPERATURE, pin solder -10s TEMPERATURE RANGE, storage OPERATING TEMPERATURE RANGE, case PA01 TEST CONDITIONS 2 PA73 68V 5A 67W VS -3V VS 200C 300C -65 to +150C -25 to +85C PA73 MIN TYP MAX 12 65 VS-6 70 5 10 35 20 15 .05 .02 5 .01 200 10 3 VS-3 110 MIN TYP MAX UNITS 10 * 200 * * * * * * * * * * * * * * * * mV V/C V/V V/W nA nA/C nA/V nA nA/C M M pF V dB INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature OFFSET VOLTAGE, vs. supply OFFSET VOLTAGE, vs. power BIAS CURRENT, initial BIAS CURRENT, vs. temperature BIAS CURRENT, vs. supply OFFSET CURRENT, initial OFFSET CURRENT, vs. temperature INPUT IMPEDANCE, common-mode INPUT IMPEDANCE, differential INPUT CAPACITANCE COMMON MODE VOLTAGE RANGE3 COMMON MODE REJECTION, DC3 TC = 25C Full temperature range TC = 25C TC = 25C TC = 25C Full temperature range TC = 25C TC = 25C Full temperature range TC = 25C TC = 25C TC = 25C Full temperature range TC = 25C, VCM = VS -6V 50 .4 15 40 * 10 GAIN OPEN LOOP GAIN at 10Hz Full temp. range, full load GAIN BANDWIDTH PRODUCT @ 1MHz TC = 25C, full load POWER BANDWIDTH TC = 25C, IO = 4A, VO = 40VPP PHASE MARGIN Full temperature range 91 15 113 1 23 45 * VS-5 VS-5 VS-8 * * * * * * * * dB MHz kHz * * V V V A s V/s nF OUTPUT VOLTAGE SWING3 VOLTAGE SWING3 VOLTAGE SWING3 CURRENT, peak SETTLING TIME to .1% SLEW RATE CAPACITIVE LOAD, unity gain CAPACITIVE LOAD, gain > 4 TC = 25C, IO = 5A Full temp. range, IO = 2A Full temp. range, IO = 46mA TC = 25C TC = 25C, 2V step TC = 25C, RL = 2.5 Full temperature range Full temperature range VS-10 VS-6 VS-5 5 1.0 2 2.6 * * * 3.3 SOA * * POWER SUPPLY VOLTAGE CURRENT, quiescent Full temperature range TC = 25C 10 28 20 28 50 1.9 2.4 30 25 2.1 2.6 * * 2.6 30 5 V mA * * * * * * C/W C/W C/W C THERMAL RESISTANCE, AC, junction to case4 RESISTANCE, DC, junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * 1. 2. 3. 4. CAUTION F > 60Hz F < 60Hz Meets full range specifications -25 +85 * * The specification of PA73 is identical to the specification for PA01 in applicable column to the left. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition. +VS and -VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to -VS. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or subject to temperatures in excess of 850C to avoid generating toxic fumes. APEX MICROTECHNOLOGY CORPORATION * 5980 NORTH SHANNON ROAD * TUCSON, ARIZONA 85741 * USA * APPLICATIONS HOTLINE: 1 (800) 546-2739 PA01 * PA73 40 T = TC 30 20 T = TA 0 0 20 40 60 80 100 120 140 TEMPERATURE, T(C) 3.0 2.2 1.9 1.6 1.3 1.0 SMALL SIGNAL RESPONSE OPEN LOOP GAIN, AOL (dB) -60 PHASE, () 80 0 -180 -20 1 -210 10 100 1K 10K .1M 1M 10M FREQUENCY, F (Hz) 1 PULSE RESPONSE 8 OUTPUT VOLTAGE, VO (V) 100 80 60 VIN = 5V, t r = 100ns 6 PA01 4 2 0 for PA73 -4 20 -6 0 -8 10 100 1K 10K .1M FREQUENCY, F (Hz) 1 .3 3 7 PA 1 @ = PO 0 PA 32 32 = .003 100 = @ 1 VS = 28V RL = 8 AV = 10 PA 0 PA 73 P O @ P O .03 POWER RESPONSE 68 |+VS | + |-VS | = 60V 46 32 22 15 10 6.8 4.6 10K 20K 30K 50K 70K .1M FREQUENCY, F (Hz) INPUT NOISE 2 4 6 8 10 12 TIME, t (s) 70 50 40 30 20 10 10 100 10K 1K FREQUENCY, F (Hz) .1M OPEN LOOP GAIN 1.3 +6 1.2 +4 W m 50 W .1 @ PO 50 0 -50 -25 0 25 50 75 100 125 CASE TEMPERATURE, TC (C) QUIESCENT CURRENT 300 1K 3K 10K 30K .1M FREQUENCY, F (Hz) NORMALIZED, IQ (X) W m = .01 0 1M HARMONIC DISTORTION 1 .5 100 -2 40 1.0 10 100 1K 10K .1M 1M 10M FREQUENCY, F (Hz) COMMON MODE REJECTION 120 3 DISTORTION (%) -120 -150 R CL = 0.6 100 -90 20 W COMMON MODE REJECTION, CMR (dB) -30 40 1.5 PHASE RESPONSE 0 100 R CL = 0.3 2.0 .7 -50 -25 0 25 50 75 100 125 CASE TEMPERATURE, TC (C) 120 60 2.5 1.1 1.0 .9 PA01 C @ 85 C to +25 C @ -25 85 PA01 @ -25 to + PA73 .8 .7 30 40 50 60 70 20 80 TOTAL SUPPLY VOLTAGE, VS (V) NORMALIZED, AOL (dB) 10 2.5 CURRENT LIMIT, I LIM (A) 50 CURRENT LIMIT 3.5 OUTPUT VOLTAGE, VO (VPP ) 60 BIAS CURRENT 2.8 INPUT NOISE VOLTAGE, VN (nV/ Hz) POWER DERATING 70 NORMALIZED BIAS CURRENT, I B (X) INTERNAL POWER DISSIPATION, P(W) TYPICAL PERFORMANCE GRAPHS +2 T C = -25C 0 TC = 85C TC = 25C -2 -4 -6 60 20 30 40 50 70 80 TOTAL SUPPLY VOLTAGE, VS (V) APEX MICROTECHNOLOGY CORPORATION * TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 * EMAIL prodlit@apexmicrotech.com OPERATING CONSIDERATIONS PA01 * PA73 GENERAL Please read the "General Operating Considerations" section, which covers stability, supplies, heatsinking, mounting, current limit, SOA interpretation, and specification interpretation. Additional information can be found in the application notes. For information on the package outline, heatsinks, and mounting hardware, consult the "Accessory and Package Mechanical Data" section of the handbook. SAFE OPERATING AREA (SOA) The output stage of most power amplifiers has three distinct limitations: 1. The current handling capability of the transistor geometry and the wire bonds. 2. The second breakdown effect which occurs whenever the simultaneous collector current and collector-emitter voltage exceeds specified limits. 3. The junction temperature of the output transistors. C 5C =8 s TC 1m 3.0 =2 t= T 4.0 t= 5C 5m 2.0 1.5 st ea dy 1.0 ** Second breakdown effect imposes no limitation but thermal limitations must still be observed. 2. EMF generating or reactive load and short circuits to the supply rail or shorts to common are safe if the current limits are set as follows at TC = 85C. VS SHORT TO VS C, L, OR EMF LOAD SHORT TO COMMON 34V 30V 25V 20V 15V .50A .60A .75A 1.0A 1.3A 1.2A 1.3A 1.6A 2.1A 2.8A These simplified limits may be exceeded with further analysis using the operating conditions for a specific application. 3. The output stage is protected against transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery diodes should be used. s OUTPUT CURRENT FROM +V S OR -VS (A) 5.0 supply rail with ILIM = 5A or 20V below the supply rail with ILIM = 2A while the amplifier is current limiting, the inductor should be capacitively coupled or the current limit must be lowered to meet SOA criteria. st at e .7 .5 .4 PA01 LIMIT .3 10 20 25 30 35 40 50 60 70 SUPPLY TO OUTPUT DIFFERENTIAL VOLTAGE V S -VO (V) CURRENT LIMIT Proper operation requires the use of two current limit resistors, connected as shown, in the external connection diagram. The minimum value for RCL is 0.12 ohm; however, for optimum reliability it should be set as high as possible. Refer to the "General Operating Considerations" section of the handbook for current limit adjust details. The SOA curves combine the effect of these limits. For a given application, the direction and magnitude of the output current should be calculated or measured and checked against the SOA curves. This is simple for resistive loads but more complex for reactive and EMF generating loads. The following guidelines may save extensive analytical efforts. 1. Capacitive and dynamic* inductive loads up to the following maximums are safe with the current limits set as specified: CAPACITIVE LOAD INDUCTIVE LOAD VS ILIM = 2A ILIM = 5A ILIM = 2A ILIM = 5A 30V 25V 1,200F 4000F 20,000F 500F 1,600F 5,000F 25,000F 250mH 400mH 1,500mH 24mH 38mH 20V 15V ** ** 75mH 100mH * If the inductive load is driven near steady state conditions, allowing the output voltage to drop more than 8V below the This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice. PA01, 73U REV. N DECEMBER 1997 (c) 1997 Apex Microtechnology Corp.