PA01 APEX | Alldatasheet

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Technical content

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

FEATURES

  • LOW COST, ECONOMY MODEL — PA01
  • 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

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 inter - connections 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 mount- ing torque will void the product warranty. Please see “General Operating Considerations”. EXTERNAL CONNECTIONS NOTE 1: * Indicates not used in PA73. Open base of Q2A connected to output of A1. TYPICAL APPLICATION 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 8-PIN TO-3 PACKAGE STYLE CE

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PA01 PA73 PARAMETER TEST CONDITIONS 2 MIN TYP MAX MIN TYP MAX UNITS INPUT OFFSET VOLTAGE, initial TC = 25°C ±5 ±12 * ±10 mV OFFSET VOLTAGE, vs. temperature Full temperature range ±10 ±65 * * µV/°C OFFSET VOLTAGE, vs. supply T C = 25°C ±35 * ±200 µV/V OFFSET VOLTAGE, vs. power T C = 25°C ±20 * µV/W BIAS CURRENT, initial TC = 25°C ±15 ±50 * ±40 nA BIAS CURRENT, vs. temperature Full temperature range ±.05 ±.4 * * nA/°C BIAS CURRENT, vs. supply TC = 25°C ±.02 * nA/V OFFSET CURRENT, initial TC = 25°C ±12 ±30 * * nA OFFSET CURRENT, vs. temperature Full temperature range ±.05 * nA/°C INPUT IMPEDANCE, common-mode T C = 25°C 200 * MΩ INPUT IMPEDANCE, differential T C = 25°C 10 * MΩ INPUT CAPACITANCE TC = 25°C 3 * pF COMMON MODE VOLTAGE RANGE3 Full temperature range ±VS–6 ±V S–3 * * V COMMON MODE REJECTION, DC3 T C = 25°C, VCM = VS –6V 70 110 * * dB GAIN OPEN LOOP GAIN at 10Hz Full temp. range, full load 91 113 * * dB GAIN BANDWIDTH PRODUCT @ 1MHz TC = 25°C, full load 1 * MHz POWER BANDWIDTH TC = 25°C, IO = 4A, VO = 40VPP 15 23 * * kHz PHASE MARGIN Full temperature range 45 * ° OUTPUT VOLTAGE SWING3 TC = 25°C, IO = 5A ±VS–10 ±V S–5 ±V S–8 * V VOLTAGE SWING3 Full temp. range, IO = 2A ±VS–6 ±V S–5 * * V VOLTAGE SWING3 Full temp. range, IO = 46mA ±V S–5 * V CURRENT, peak TC = 25°C ±5 * A SETTLING TIME to .1% TC = 25°C, 2V step 2 * µs SLEW RATE TC = 25°C, RL = 2.5Ω 1.0 2.6 * * V/µs CAPACITIVE LOAD, unity gain Full temperature range 1 * nF CAPACITIVE LOAD, gain > 4 Full temperature range SOA * POWER SUPPLY VOLTAGE Full temperature range ±10 ±28 ±28 * * ±30 V CURRENT, quiescent TC = 25°C 20 50 2.6 5 mA THERMAL RESISTANCE, AC, junction to case4 F > 60Hz 1.9 2.1 * * °C/W RESISTANCE, DC, junction to case F < 60Hz 2.4 2.6 * * °C/W RESISTANCE, junction to air 30 * °C/W TEMPERATURE RANGE, case Meets full range specifications –25 25 +85 * * * °C PA01 • PA73 PA01 PA73 SUPPLY VOLTAGE, +VS to –VS 60V 68V OUTPUT CURRENT, within SOA 5A 5A POWER DISSIPATION, internal 67W 67W INPUT VOLTAGE, differential ±VS –3V ±V S –3V INPUT VOLTAGE, common-mode ±VS ±VS TEMPERATURE, junction1 200°C 200°C TEMPERATURE, pin solder -10s 300°C 300°C TEMPERATURE RANGE, storage –65 to +150°C –65 to +150°C OPERATING TEMPERATURE RANGE, case –25 to +85°C –25 to +85°C 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 850°C to avoid generating toxic fumes. NOTES: * The specification of PA73 is identical to the specification for PA01 in applicable column to the left. 1. Lo achieve high MTTF. 2. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition. 3. +V S and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS. 4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. CAUTION

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com TYPICAL PERFORMANCE GRAPHSPA01 • PA73

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 OPERATING CONSIDERATIONS PA01 • PA73 GENERAL Please read Application Note 1 "General Operating Con - siderations" which covers stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www.apexmicrotech.com for design tools that help automate tasks such as calculations for stability, in- ternal power dissipation, current limit and heat sink selection. The "Application Notes" and "Technical Seminar" sections contain a wealth of information on specific types of applications. Package outlines, heat sinks, mounting hardware and other accessories are located in the "Packages and Accessories" section. Evaluation Kits are available for most Apex product models, consult the "Evaluation Kit" section for details. For the most current version of all Apex product data sheets, visit www.apexmicrotech.com. 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. 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. 1. For sine wave outputs, use Power Design 1 to plot a load line. Make sure the load line does not cross the 0.5ms limit and that excursions beyond any other second breakdown line do not exceed the time label, and have a duty cycle of no more than 10%. For other waveform outputs, manual load line plotting is recommended. Applications Note 22, SOA AND LOAD LINES, will be helpful. A Spice type analysis can be very useful in that a hardware setup often calls for instruments or amplifiers with wide common mode rejection ranges. 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 = 85°C. SHORT TO ±VS SHORT TO ±V S C, L, OR EMF LOAD COMMON 34V .58A 1.1A 30V .46A 1.4A 25V .61A 1.7A 20V .86A 2.1A 15V 1.3A 2.9A 3. The output stage is protected against occaisional transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery diodes should be used. CURRENT LIMIT Proper operation requires the use of two current limit resis- tors, 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. 1 Note 1. Power Design is a self-extracting Excel spreadsheet available free from www.apexmicrotech.com 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 R MARCH 2005 © 2005 Apex Microtechnology Corp.