4707 Dey Road Liverpool, N.Y. 13088 (315) 701-6751
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/µS Typ.
Monolithic MOS Technology
MIL-PRF-38534 QUALIFIED
151/152
ISO-9001 CERTIFIED BY DSCC
PA Audio
Magnetic Deflection
Motor Drive
Noise Cancellation
1
2
3
4
-Vcc
N/C
Output Drive
Current Sense
8
7
6
5
Inverting Input
Non-Inverting Input
N/C
+Vcc
M.S.KENNEDY CORP.
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
PIN-OUT INFORMATION
TYPICAL APPLICATIONS
HIGH POWER
OPERATIONAL AMPLIFIER
Rev. A 7/00
1
STATIC
Supply Voltage Range
INPUT
Offset Voltage
Offset Voltage Drift
Offset Voltage vs ±Vcc
Input Impedance
Input Capacitance
Common Mode Rejection
Noise
OUTPUT
Output Voltage Swing
Output Current
Power Bandwidth
Settling Time to 0.1%
Capacitive Load
TRANSFER CHARACTERISTICS
Slew Rate
Open Loop Voltage Gain
Max.
±75
±50
±45
±65
±10
±50
±15
±100
±50
-
-
-
-
-
-
-
-
-
-
-
150V
±5A
±16V
±Vcc
150°C
Total Supply Voltage
Output Current (within S.O.A.)
Input Voltage (Differential)
Input Voltage (Common Mode)
Junction Temperature
-65°C to +150°C
300°C
-55°C to +125°C
-40°C to +85°C
1.0°C/W
1
2
3
4
5
6
7
8
ABSOLUTE MAXIMUM RATINGS
TST
TLD
TC
RTH
VCC
±IOUT
VIND
VIN
TJ
Unless otherwise noted ±VCC= ±50VDC.
Derate maximum supply voltage 0.5V/°C below TC=+25°C. No derating is needed above TC=25°C.
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=+25°C
Subgroup 2,5 TC=+125°C
Subgroup 3,6 TA=-55°C
Storage Temperature
Lead Temperature
Case Operating Temperature
(MSK151B/152B)
(MSK151/152)
Thermal Resistance (DC)
Junction to Case
Group A
Subgroup
-
1
2
3
1
2,3
1
1,3
2
-
-
-
-
4
4
-
-
-
4
4
Typ.
±50
±30
±20
±35
±5
±10
±8
±20
-
10
5
106
10
±42
±5.5
66
2
-
27
106
Min.
±15
-
-
-
-
-
-
-
-
-
-
90
-
±40
±5
-
-
10
20
94
Min.
±15
-
-
-
-
-
-
-
-
-
-
90
-
±40
±5
-
-
10
20
94
Max.
±75
±50
-
-
±15
-
±15
±100
-
-
-
-
-
-
-
-
-
-
-
-
Typ.
±50
±30
-
-
±5
±10
±8
±20
-
10
5
106
10
±42
±5.5
66
2
-
27
106
Units
V
mA
mA
mA
mV
µV/°C
µV/V
pA
nA
Ω
pF
dB
µVRMS
V
A
KHz
µS
nF
V/µS
dB
MSK151B/152B MSK151/152
2
Parameter
4
Test Conditions
ELECTRICAL SPECIFICATIONS
4
4
1
4
4
NOTES:
4
2
4
11 11
Quiescent Current
○○○○○○○○○○○
○○○○○
○○○○○
○○○○○○○○○○○○○○
○○○○○○○
○○○○○○○○○
○○○○○○○○○○○○○
○○○ ○○○○
○○○○○
○○○○○○○○○
34
4
4
VIN=0V
VIN=0V
VIN=0V
VIN=0V
(DC)
VCM=±30VDC
10KHz BW
IOUT=±5A Peak
VOUT=MAX
VOUT=80VPP
10V Step
AV=+10 V/V
F=15Hz
Input Bias Current 4VCM = 0V
Rev. A 7/002
APPLICATION NOTES
CURRENT LIMIT (SEE TYPICAL CONNECTION DIAGRAM) SAFE OPERATING AREA (SOA)
The MOSFET output stage of this power operational ampli-
fier 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.
VR=IO RCL
*
RCL=(0.83 - (0.05 ICL)) / ICL
*
*
A value of current limit resistance can be calculated as fol-
lows:
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 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 feed-
back resistor be 1000 ohms or less to minimize phase shift
caused by the R-C network formed by the input resistor, feed-
back resistor and input capacitance. An effective method of
checking amplifier stability is to apply the worst case capaci-
tive 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 recom-
mended.
TYPICAL CONNECTION DIAGRAM
Rev. A 7/003
TYPICAL PERFORMANCE CURVES
Rev. A 7/00
4
ORDERING INFORMATION
Screening Level
MECHANICAL SPECIFICATIONS
Part
Number
ESD TRIANGLE INDICATES PIN 1.
ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED.
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.
M.S. Kennedy Corp.
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennnedy.com
MSK151
MSK151B
MSK152
MSK152B
Industrial
Military-Mil-PRF-38534
Industrial
Military-Mil-PRF-38534
MSK151 MSK152
Rev. A 7/00
5
