PA51, PA51A PA51 PPA51 PA51AA51A Power Operational Amplifier FEATURES WIDE SUPPLY RANGE 10 to 40V HIGH OUTPUT CURRENT 10A Peak CLASS C OUTPUT Low Cost LOW QUIESCENT CURRENT 2.6mA APPLICATIONS DC SERVO AMPLIFIER 8-PIN TO-3 MOTOR/SYNCHRO DRIVER PACKAGE STYLE CE VALVE AND ACTUATOR CONTROL DC OR AC POWER REGULATOR TYPICAL APPLICATION C1 DESCRIPTION The PA51 and PA51A are high voltage, high output current R3 +10V operational ampliefi rs designed to drive resistive, inductive and 0/+5V R1 .1 capacitive loads. Their complementary common emitter output DAC stage is the simple class C type optimized for low frequency 4.16K 0/6A PA51 applications where crossover distortion is not critical. These R2 R4 ampliefi rs are not recommended for audio, transducer or deefl c - 2.5K tion coil drive circuits. The safe operating area (SOA) is fully M .1 specified and can be observed for all operating conditions by 28V selection of user programmable current limiting resistors. Both amplifiers are internally compensated for all gain settings. For R5 continuous operation under load, mounting on a heatsink of MOTOR CURRENT IS A FUNCTION OF V .5 IN proper rating is recommended. Do not use isolation washers PROGRAMMABLE TORQUE CIRCUIT This hybrid integrated circuit utilizes thick lm fi conductors, The linear relationship of torque output to current input of ceramic capacitors and semiconductor chips to maximize reli- the modern torque motor makes this simple control circuit ability, minimize size and give top performance. Ultrasonically ideal for many material processing and testing applications. bonded aluminum wires provide reliable interconnections at The sense resistor develops a feedback voltage proportional all operating temperatures. The 8-pin TO-3 package is electri- to motor current and the small signal properties of the Power cally isolated and hermetically sealed. The use of compress- Op Amp insure accuracy. With this closed loop operation, tem- ible thermal washers and/or improper mounting torque will perature induced impedance variations of the motor winding void the product warranty. Please see General Operating are automatically compensated. Considerations. EXTERNAL CONNECTIONS EQUIVALENT SCHEMATIC N.C. V S 7 CL 6 3 8 R IN CL- Q1A 5 Q1B TOP VIEW 2 4 +IN OUTPUT Q3 1 OUT 3 4 2 +V S A1 R CL+ 1 CL+ 5 Q4 C1 8 Q6B Q6A 6 Copyright Apex Microtechnology, Inc. 2012 OCT 2012 wwwPA51U .apexanalog.com 1 (All Rights Reserved) PA51U REVUPA51 PA51A SUPPLY VOLTAGE, +V to V 80V S S ABSOLUTE MAXIMUM RATINGS OUTPUT CURRENT, within SOA 10A POWER DISSIPATION, internal 97W INPUT VOLTAGE, differential 37V INPUT VOLTAGE, common mode V S 1 TEMPERATURE, junction 200C TEMPERATURE, pin solder -10s 350C TEMPERATURE RANGE, storage 65 to +150C OPERATING TEMPERATURE RANGE, case 55 to +125C SPECIFICATIONS PA51 PA51A 2, 5 PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS INPUT OFFSET VOLTAGE, initial T = 25C 5 10 2 8 mV C OFFSET VOLTAGE, vs. temperature Full temperature range 10 65 * 40 V/C OFFSET VOLTAGE, vs. supply T = 25C 35 * V/V C OFFSET VOLTAGE, vs. power T = 25C 20 * V/W C BIAS CURRENT, initial T = 25C 15 40 * 30 nA C BIAS CURRENT, vs. temperature Full temperature range .05 * nA/C BIAS CURRENT, vs. supply T = 25C .02 * nA/V C OFFSET CURRENT, initial T = 25C 12 30 5 10 nA C OFFSET CURRENT, vs. temperature Full temperature range .05 * nA/C INPUT IMPEDANCE, common mode T = 25C 250 * M C INPUT IMPEDANCE, differential T = 25C 10 * M C INPUT CAPACITANCE T = 25C 3 * pF C 3 COMMON MODE VOLTAGE RANGE Full temperature range V 6 V 3 * * V S S 3 COMMON MODE REJECTION, DC T = 25C, V = V 6V 70 110 80 * dB C CM S GAIN OPEN LOOP GAIN at 10Hz Full temp. range, full load 94 115 * * dB GAIN BANDWIDTH PRODUCT 1MHz T = 25C, full load 1 * MHz C POWER BANDWIDTH T = 25C, I = 8A, V = 40V 10 16 * * kHz C O O PP PHASE MARGIN Full temperature range 45 * OUTPUT 3 VOLTAGE SWING T = 25C, I = 10A V 8 V 5 * * V C O S S 3 VOLTAGE SWING Full temp. range, I = 4A V 6 V 4 * * V O S S 3 VOLTAGE SWING Full temp. range, I = 68mA V 6 * V O S CURRENT T = 25C 10 * A C SETTLING TIME to .1% T = 25C, 2V step 2 * s C SLEW RATE T = 25C, R = 6 1.0 2.6 * * V/s C L CAPACITIVE LOAD, unity gain Full temperature range 1.5 * nF CAPACITIVE LOAD, gain > 4 Full temperature range SOA * POWER SUPPLY VOLTAGE Full temperature range 10 28 36 * 34 40 V CURRENT, quiescent T = 25C 2.6 10 * * mA C THERMAL 4 RESISTANCE, AC, junction to case F > 60Hz 1.0 1.2 * * C/W RESISTANCE, DC, junction to case F < 60Hz 1.5 1.8 * * C/W RESISTANCE, junction to air 30 * C/W TEMPERATURE RANGE, case Meets full range specifications 25 +85 55 +125 C NOTES: * The specification of PA51A is identical to the specification for PA51 in applicable column to the left. 1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. 2. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition. 3. +V and V denote the positive and negative supply rail respectively. Total V is measured from +V to V . S S S S S 4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. 5. Full temperature range specifications are guaranteed but not 100% tested. The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or CAUTION subject to temperatures in excess of 850C to avoid generating toxic fumes. 2 PA51U