POWER OPERATIONAL AMPLIFIERS PA52 • PA52A M I C R O T E C H N O L O G Y HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739 FEATURES • HIGH INTERNAL DISSIPATION — 400 Watts • HIGH CURRENT — 40A Continuous, 80A PEAK • HIGH SLEW RATE — 50V/µs • OPTIONAL BOOST VOLTAGE INPUTS PA52A ∆ USA TE9493 11 BeO APPLICATIONS • SEMI-CONDUCTOR TESTING DESCRIPTION The PA52 is a MOSFET power operational amplifier that extends the performance limits of power amplifiers in slew rate and power bandwidth, while maintaining high current and power dissipation ratings. Boost voltage inputs allow the small signal portion of the amplifier to operate at a higher voltage than the high current output stage. The amplifier is then biased to achieve close linear swings to the supply rails at high currents for extra efficient operation. The JEDEC MO-127 12-pin Power Dip™ package (see Package Outlines) is hermetically sealed and isolated from the internal circuits. The use of compressible thermal washers and/or improper mounting torque will void the product warranty. Please see “General Operating Considerations”. EXTERNAL CONNECTIONS EQUIVALENT SCHEMATIC -Vb –IN +IN 1 12 2 11 10 +Vs 9 +Vs -Vs 3 -Vs 4 -OUT 5 8 6 7 -OUT TOP VIEW +Vb +OUT +OUT APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected] ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PA52 • PA52A SUPPLY VOLTAGE, +VS to –VS BOOST VOLTAGE, +Vb to -Vb OUTPUT CURRENT, within SOA POWER DISSIPATION, internal INPUT VOLTAGE, differential INPUT VOLTAGE, common mode TEMPERATURE, pin solder - 10s TEMPERATURE, junction2 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case PA52 OUTPUT VOLTAGE SWING VOLTAGE SWING, PA52 VOLTAGE SWING, PA52A CURRENT, peak SETTLING TIME TO.1% SLEW RATE RESISTANCE POWER SUPPLY VOLTAGE, ±VBOOST VOLTAGE, ±VS CURRENT,quiescent, boost supply CURRENT, quiescent, total THERMAL RESISTANCE,AC,junction to case3 RESISTANCE,DC,junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * 1. 2. 3. CAUTION Full temperature range Full temp, range, VCM= ±20V 100KHZ BW, Rs=1KΩ ±Vb 12 90 Full temperature range RL=10Ω RL=4Ω, Vo=180VP-P, Av=-10 Full temperature range 94 Io=40A ±VBOOST=±VS±10V, Io=40A ±VBOOST=±VS±10V, Io=50A 3ms 10% Duty Cycle AV= -10,10V STEP,RL=4Ω AV=-10 IO=0, NO LOAD, 2MHZ Full temperature range Full temperature range ±VS ±VS ± ± GAIN OPEN LOOP,@ 15Hz GAIN BANDWIDTH PRODUCT POWER BANDWIDTH Full temperature range ± INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature OFFSET VOLTAGE, vs. supply BIAS CURRENT, initial BIAS CURRENT vs. supply OFFSET CURRENT, initial INPUT IMPEDANCE, DC IMPUT CAPACITANCE COMMON MODE VOLTAGE RANGE COMMON MODE REJECTION,DC INPUT NOISE MIN 9.5 5.8 TYP MAX 5 20 10 10 .01 10 10" 13 10 50 30 50 TYP 50 2 * * * * * * * 5 * * * * * * mV µV/°V µV/V pA pA/V pA Ω pF V dB µVrms * * * * * dB MHz kHz ±VS 8.7 ±VS 5.0 * * V V V A µs V/µs Ω ±VS 5.8 ±VS 5.0 * 1 * 50 * 2.5 ±30 .2 .25 12 -25 UNITS 102 3 90 80 ±12 ±3 MAX * 100 10 26 30 Full temperature range, F>60HZ Full temperature range, F>60HZ Full temperature range Meets full range specification MIN ± TEST CONDITIONS1 PA52A ± SPECIFICATIONS PARAMETER 200V 230V 80A 400W ±20V ±Vb 300°C 175°C –65 to +150°C –55 to +125°C ± ± ABSOLUTE MAXIMUM RATINGS * ±115 ±100 32 36 * * * * .25 .31 85 * * * * * * * * * V V mA mA * * °C/W °C/W °C/W °C * The specification of PA52A is identical to the specification for PA52 in applicable column to the left Unless otherwise noted: TC = 25°C, DC input specifications are ± value given. Power supply voltage is typical rating. ±VBOOST = ±VS. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. For guidance, refer to the heatsink data sheet. Rating applies if the output current alternates between both output transistors at a rate faster than 60 Hz. The PA52 is constructed from MOSFET transistors. ESD handling procedures must be observed. 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. APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 300 T = TC 200 100 0 100 60 40 20 0 10 SMALL SIGNAL GAIN 120 100 1K 10K 100K 1M 10M FREQUENCY F (Hz) OPEN LOOP PHASE, Φ (°) 80 40 0 R L = 4Ω –90 –135 –180 COMMON MODE REJECTION 80 60 40 20 100 1K 10K 100K FREQUENCY, F (Hz) 8 6 V BOOS T = VS 4 0V 2 ST = VS +1 V BOO 0 0 10 20 30 40 OUTPUT CURRENT, I O (A) 50 200 100 10 100 0 10 –45 10 100 1K 10K 100K 1M 10M FREQUENCY,Ff (Hz) 1M 1 NORMALIZED QUIESCENT CURRENT, I Q (X) 1 R L = 4Ω OUTPUT VOLTAGE SWING 10 POWER RESPONSE SMALL SIGNAL PHASE 0 OUTPUT VOLTAGE, VO (VPP) 25 50 75 TEMPERATURE, T (°C) 80 1.125 10 100 1K 10K 100K 1M 10M FREQUENCY, F (Hz) 100K FREQUENCY, F (Hz) ±VS = ±VB 1.1 1.075 1.05 1.025 1 20 100 40 60 80 TOTAL SUPPLY VOLTAGE, VS (V) 1M SAFE OPERATING AREA QUIESCENT CURRENT 80 OUTPUT CURRENT, (A) 0 POWER SUPPLY REJECTION 100 VOLTAGE DROP FROM SUPPLY, VS–VO (V) POWER DERATING POWER SUPPLY REJECTION, PSR (dB) PA52 • PA52A 400 COMMON MODE REJECTION, CMR (dB) OPEN LOOP GAIN RESPONSE, A(dB) INTERNAL POWER DISSIPATION, P(W) TYPICAL PERFORMANCE GRAPHS t= 1m s DC 10 m DC Tc s Tc = 2 DC 5 = 85 °C Tc °C = 12 5° C t= 10 1 0.1 1 10 100 SUPPLY TO OUTPUT DIFFERENTIAL, (V) APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected] OPERATING CONSIDERATIONS PA52 • PA52A GENERAL Please read Application Note 1 "General Operating Considerations" 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, internal power dissipation, current limit; heat sink selection; Apex’s complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits. CURRENT LIMIT There is no internal circuit provision for current limit in the PA52. However, the PA52 circuit board in the PA52 evaluation kit does provide a means whereby the output current can be sensed. An external circuit current limit can thereby be implemented if needed. See EK27 data sheet for more details. BOOST OPERATION With the VBOOST feature the small signal stages of the amplifier are operated at higher supply voltages than the amplifier’s high current output stage. +VBOOST (pin 11) and –VBOOST (pin 12) are connected to the small signal circuitry of the amplifier. +VS (pin 9,10) and –VS (pin 3,4) are connected to the high current output stage. An additional 10V on the VBOOST pins is sufficient to allow the small signal stages to drive the output transistors into saturation and improve the output voltage swing for extra efficient operation when required. When close swings to the supply rails is not required the +VBOOST and +VS pins must be strapped together as well as the –VBOOST and –VS pins. The boost voltage pins must not be at a voltage lower than the VS pins. COMPENSATION Compensation is internally fixed for a gain of 3 or more and is not adjustable by the user. The PA52 therefore is not unity gain stable. POWER SUPPLY BYPASSING Proper and sufficient power supply bypassing is crucial to proper operation of the PA52. Bypass the +Vb and -Vb supply pins with a minimum .1µF ceramic capacitors directly at the supply pins. On the +Vs and -Vs pins use a combination of ceramic and electrolytic capacitors. Use 1µF ceramic capacitors and an electrolytic capacitor at least 10µF for each amp of output current required. 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. APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 PA52U REV A FEBRUARY 2001 © 2001 Apex Microtechnology Corp.