ISO-9001 CERTIFIED BY DSCC M.S.KENNEDY CORP. HIGH POWER OPERATIONAL AMPLIFIER 151/152 4707 Dey Road Liverpool, N.Y. 13088 (315) 701-6751 MIL-PRF-38534 QUALIFIED FEATURES: Internally Compensated For Gains > 10 V/V Improved Replacement for OMA541SKB Low Cost High Voltage Operation: 150V Low Quiescent Current: 30mA Typ. High Output Current: 5A Min. No Second Breakdown High Speed: 27V/S Typ. Monolithic MOS Technology MSK152 MSK151 DESCRIPTION: The MSK 151 is a high power monolithic MOSFET operational amplifier ideally suited for high power amplification and magnetic deflection applications. With a total supply voltage rating of 150 volts and 5A of available output current, the MSK 151 is also an excellent low cost choice for motor drive circuits. The MOSFET output frees the MSK 151 from secondary breakdown limitations and power dissipation is kept to a minimum with a quiescent current rating of only 30mA. The MSK 151 is packaged in a hermetically sealed 8 pin power dip and is internally compensated for gains larger than 10 V/V. For applications requiring heat sinking, the MSK 152 is available with bolt down tabs and is otherwise identical to the MSK 151 (see mechanical specifications). EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS PA Audio Magnetic Deflection Motor Drive Noise Cancellation PIN-OUT INFORMATION 1 2 3 4 -Vcc N/C Output Drive Current Sense 1 8 7 6 5 Inverting Input Non-Inverting Input N/C +Vcc Rev. A 7/00 ABSOLUTE MAXIMUM RATINGS VCC 2 IOUT VIND VIN TJ Total Supply Voltage Output Current (within S.O.A.) Input Voltage (Differential) Input Voltage (Common Mode) Junction Temperature TST TLD TC 150V 5A 16V Vcc 150C Storage Temperature -65C to +150C Lead Temperature 300C Case Operating Temperature (MSK151B/152B) -55C to +125C (MSK151/152) -40C to +85C Thermal Resistance (DC) Junction to Case 1.0C/W RTH ELECTRICAL SPECIFICATIONS Group A Test Conditions 1 Parameter MSK151B/152B MSK151/152 Subgroup Min. Typ. Max. Min. Typ. Max. Units - 15 50 75 15 50 75 V 1 - 30 50 - 30 50 mA 2 - 20 45 - - - mA 3 - 35 65 - - - mA STATIC Supply Voltage Range Quiescent Current 2 4 VIN=0V INPUT Offset Voltage VIN=0V 1 - 5 10 - 5 15 mV Offset Voltage Drift 4 VIN=0V 2,3 - 10 50 - 10 - V/C Offset Voltage vs Vcc 4 VIN=0V 1 - 8 15 - 8 15 V/V 1,3 - 20 100 - 20 100 pA 2 - - - - - nA - - 10 - - - pF - Input Bias Current 4 Input Impedance 4 VCM = 0V (DC) Input Capacitance 4 Common Mode Rejection 4 Noise VCM=30VDC 50 11 - - 10 5 - - 5 - 90 106 - 90 106 - dB - - 10 - VRMS V 11 10KHz BW - - 10 IOUT=5A Peak 4 40 42 - 40 42 - Output Current VOUT=MAX 4 5 5.5 - 5 5.5 - A Power Bandwidth 4 VOUT=80VPP - - 66 - - 66 - KHz 10V Step - - 2 - - 2 - S AV=+10 V/V - 10 - - 10 - - nF 4 20 27 - 20 27 - V/S 4 94 106 - 94 106 - dB OUTPUT Output Voltage Swing Settling Time to 0.1% 3 4 Capacitive Load 4 TRANSFER CHARACTERISTICS Slew Rate Open Loop Voltage Gain 4 F=15Hz NOTES: 1 2 3 4 5 6 7 8 Unless otherwise noted VCC= 50VDC. Derate maximum supply voltage 0.5V/C below TC=+25C. No derating is needed above TC=25C. AV=-10V/V measured in false summing junction circuit. Devices shall be capable of meeting the parameter, but need not be tested. Typical parameters are for reference only. Industrial grade devices shall be tested to subgroups 1 and 4 unless otherwise requested. Military grade devices ('B' suffix) shall be 100% tested to subgroups 1,2,3 and 4. Subgroup 5 and 6 testing available upon request. Subgroup 1,4 TC=+25C Subgroup 2,5 TC=+125C Subgroup 3,6 TA=-55C 2 Rev. A 7/00 APPLICATION NOTES CURRENT LIMIT SAFE OPERATING AREA (SOA) (SEE TYPICAL CONNECTION DIAGRAM) The MOSFET output stage of this power operational amplifier has two distinct limitations: 1. The current handling capability of the die metallization. 2. The junction temperature of the output MOSFET's. NOTE: The output stage is protected against transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery reverse biased diodes should be connected from the output to ground. A value of current limit resistance can be calculated as follows: RCL=(0.83 - (0.05 * ICL)) / ICL Where: RCL is the current limit resistor value ICL is the current limit 0.05 * ICL is the voltage dropped in the current limit path across internal impedances other than the actual current limit resistor 0.83 volts is the voltage drop that must be developed across the current limit connections to activate the current limit circuit The maximum practical value of current limit resistance is 16 ohms. The current limit resistor will decrease available output voltage swing in the following manner: VR=IO * RCL VR is the reduction in output voltage swing due to the current limit resistor. It is recommended the user limit output current to a value as close to the required output current as possible, without clipping output voltage swing. Current limit will vary with case temperature. Refer to the typical performance curves to predict current limit drift. If current limit is not required replace the resistor with a short. STABILITY It is recommended that the parallel sum of the input and feedback resistor be 1000 ohms or less to minimize phase shift caused by the R-C network formed by the input resistor, feedback resistor and input capacitance. An effective method of checking amplifier stability is to apply the worst case capacitive load to the output of the amplifier and drive a small signal square wave across it. If overshoot is less than 25%, the system will typically be stable. INPUT PROTECTION Input protection circuitry within the MSK 151/152 will clip differential input voltages greater than 16 volts. The inputs are also protected against common mode voltages up to the supply rails as well as static discharge. There are 300 ohm current limiting resistors in series with each input. These resistors may become damaged in the event the input overload is capable of driving currents above 1mA. If severe overload conditions are expected, external input current limiting resistors are recommended. TYPICAL CONNECTION DIAGRAM 3 Rev. A 7/00 TYPICAL PERFORMANCE CURVES 4 Rev. A 7/00 MECHANICAL SPECIFICATIONS MSK152 MSK151 ESD TRIANGLE INDICATES PIN 1. ALL DIMENSIONS ARE 0.010 INCHES UNLESS OTHERWISE LABELED. ORDERING INFORMATION Part Number MSK151 MSK151B MSK152 MSK152B Screening Level Industrial Military-Mil-PRF-38534 Industrial Military-Mil-PRF-38534 M.S. Kennedy Corp. 4707 Dey Road, Liverpool, New York 13088 Phone (315) 701-6751 FAX (315) 701-6752 www.mskennnedy.com The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. 5 Rev. A 7/00