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| OMA541SK OMA541SKC OMA541SD OMA541SDZ HIGH POWER, HIGH CURRENT OPERATIONAL AMPLIFIER 8-Pin, TO-3 And DIP, 10 Amp Monolithic Power Operational Amplifier FEATURES * Available In Isolated Standard TO-3, "Copper Slug" TO-3 And Power DIP Packages * 10 Amp Peak Output Current * Power Supplies to 40V * Programmable Current Limit * FET Input * Available Screened to MIL-STD-883 DESCRIPTION The OMA541 is a power operational amplifier capable of operation from power supplies up to 40V and continuous output current up to 5A. Internal current limit circuitry can be user-programmed with a single external resistor, protecting the amplifier and load from fault conditions. The OMA541 pinout is compatible with popular power operational amplifiers such as the OPA511, OPA512 and OPA3573. This device is ideally suited for Military motor driver, servo amplifier, synchro exertation as well as other power drive circuitry. The OMA541SKC incorporates a copper slug to the header for improved thermal performance. ABSOLUTE MAXIMUM RATINGS @ 25C Supply Voltage, +VS To -VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80V Output Current, Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A Power Dissipation, Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125W Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to 125C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to 150C Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150C Lead Temperature (10 Sec. Soldering) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C 3.4 SCHEMATIC +VS -In +In PIN CONNECTION NC +VS 3 2 1 + Current Sense 8 Current Sense RCL Output Drive (ext.) Output 7 6 5 *1 -VS 2 3 4 Pin 1: Pin 2: Pin 3: Pin 4: Pin 5: Pin 6: Pin 7: Pin 8: -VS NC OUTPUT CS +VS NC +IN -IN -In 4 +In 5 6 -VS 8 7 NC RCL Output Output Drive Pin 1 Designation D-8 Top View 4 11 R1 Supersedes 2 05 R0 TO-3 Top View 3.4 - 41 OMA541SK OMA541SKC OMA541SD OMA541SDZ ELECTRICAL CHARACTERISTICS (TC = 25C; VS = 34 VDC unless otherwise noted.) Parameter Input Offset Voltage VOS vs Temperature vs Temperature vs Supply Voltage vs Power Input Bias Current IB Input Offset Current IOS Input Characteristics Common-Mode Voltage Range -55C to +85C +85C to +125C Common-Mode Rejection V VCM = (oe Soe- 6V) VCM = 22V Input Capacitance* Input Capacitance, DC* Gain Characteristics Open Loop Gain at 10Hz Gain Bandwidth Product* Output Voltage Swing IO = 5A, Continuous IO = 2A IO = 0.5A Current Peak AC Performance Slew Rate Power Bandwidth* Setting Time to 0.1%* Capacitive Load* RL = 8 , VO = 20Vrms 2V Step Specified Temperature Range, G =1 Specified Temperature Range, G >10 Phase Margin* Power Supply Power Supply Voltage, VS Current Quiescent Specified Temperature Range Thermal Resistance qJC (Junction-to-Case) AC Output f 60 Hz OMA541SK OMA541SKC OMA541SD DC Output OMA541SK 1.60 1.20 1.00 30 1.9 1.5 1.15 C/W C/W C/W C/W 1.25 1.00 .85 1.5 1.2 .95 C/W C/W C/W 10 35 20 25 40 25 35 V mA mA Specified Temperature Range, RL = 8 40 3.3 SOA Degrees 6 10 55 2 V/S KHz S A (oe Soe- 5.5) V (oe Soe- 4.5) V (oe Soe- 4) V 9 (oe Soe- 4.5) V (oe Soe- 3.6) V (oe Soe- 3.2) V 10 V V V A RL = 10k 90 97 1.6 dB MHz 95 5 1 (oe Soe- 6) V (oe Soe- 6.5) V (oe Soe- 3) V (oe Soe- 3.2) V 113 V V dB dB pF T Specified Temperature Range 4 1 5 50 30 20 pA pA nA -25C to +125C -55C to -25C VS = 10V to VMAX .01 15 20 2.5 20 2 30 40 10 60 mV V/C V/C V/V V/W Conditions Min. Typ. Max. Units 3.4 qJA (Junction-to-Ambient) OMA541SKC OMA541SD Note: *Guaranteed - not tested 100%. 3.4 - 42 OMA541SK OMA541SKC OMA541SD OMA541SDZ TYPICAL PERFORMANCE CURVES TA = +25C, VS = VDC unless otherwise noted Input Bias Current VS Temperature 100 Input Bias Current, (nA) 10 1 0.1 0.01 110 100 90 80 70 60 50 40 30 20 10 0 -10 1 10 Open-Loop Gain and Phase VS Frequency Voltage Gian, (dB) Phase Gain ZL = 3.3nF ZL = 3.3nF 100 1k 10k 100k 1M 10M 0.001 -25 0 25 50 75 100 125 Junction Temperature, (C) Frequency, (Hz) Normalized Quiescent Current VS Total Power Supply Voltage 1.3 1.2 Normalized IQ 1.1 TC = -25C 1.0 0.9 0.8 0.7 0.6 20 30 40 TC = 125C 50 60 70 80 90 TC = 25C VS - VOUT , (V) 6 5 4 Output Voltage Swing VS Output Current (+VS) - VO S - VO -V 3 2 1 0 1 2 3 4 5 IOUT, (A) 6 7 8 9 10 +VS + S , (V) -V Voltage Noise Density VS Frequency 1k 10 Total Harmonic Distortion VS Frequency Voltage Noise Density, THD + Noise, (%) 1.0 PO = 100mW 0.1 PO = 5W PO = 50W 100 3.4 0.01 10 1 10 100 1k 10k 100k 0.001 10 100 1k Frequency, (Hz) 10k 100k Frequency, (Hz) 3.4 - 43 OMA541SK OMA541SKC OMA541SD OMA541SDZ Typical Common-Mode Rejection VS Frequency (Case Dependent) 120 110 CMRR, (dB) 100 90 80 70 60 50 10 100 1k 10k Frequency, (Hz) 100k 1M Output Current, (A) Typical Output Current VS Temperature (Case Dependent) 12 10 8 6 4 2 0 -50 -25 0 25 50 75 100 125 IOUT + IOUT - Case Temperature, (C) Copper Slug TO-3 Safe Operating Area OMA541SKC 10 Standard TO-3 Safe Operating Area OMA541SK 10 Power DIP Safe Operating Area OMA541SD/SDZ 10 T TC =1 TC C 25 =8 = T C 5 25 C C 1.0 TC =1 TC C 25 =8 = C 5 25 C C 1.0 TC =1 TC T =8 5C C = 25 25 C C 1.0 0.1 1 10 100 0.1 1 10 100 0.1 1 10 100 MECHANICAL OUTLINE D-8 .540 D-8Z 1.04 .790 .125 COMMON LEAD .260 MAX. .540 .125 DIA. 2 HOLES .540 .540 .125 .290 .040 R. MIN. .900 .100 .300 .100 .300 .150 .030 DIA. .180 MIN. 3.4 SEATING PLANE D TO-3-8 A B C E K H J G Q F1 23 4 8 7 65 R DIM A B C D E F G H J K Q R INCHES MIN MAX 1.510 1.550 .745 .770 .260 .300 .038 .042 .080 .105 40 BASIC .500 BASIC 1.186 BASIC .593 BASIC .400 .500 .151 .161 .980 1.020 MILLIMETERS MIN MAX 38.35 39.37 18.92 19.56 6.60 7.62 0.97 1.07 2.03 2.67 40 BASIC 12.7 BASIC 30.12 BASIC 15.06 BASIC 10.16 12.70 3.84 4.09 24.89 25.91 Note: Leads in true position within 0.010" (0.25mm) R at MMC at seating plane. Pin numbers shown for reference only. Numbers may not be marked on package. 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246 |
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