ETC OMA541SK

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 @ 25°C
Supply Voltage, +VS To -VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80V
Output Current, Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A
Power Dissipation, Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125W
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to 125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to 150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead Temperature (10 Sec. Soldering) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
SCHEMATIC
PIN CONNECTION
+VS
NC
+VS
-In
2
3
+In
8
7
6
5
Current
Sense
RCL
Output
Drive
(ext.)
Output
•1
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
+In
4
1
Current
Sense
+
-
5
RCL
8
6
-VS
7
NC
Output
Output
Drive
-VS
Pin 1 Designation
D-8 Top View
4 11 R1
Supersedes 2 05 R0
3.4 - 41
TO-3 Top View
3.4
OMA541SK OMA541SKC OMA541SD OMA541SDZ
ELECTRICAL CHARACTERISTICS (TC = 25°C; VS = ±34 VDC unless otherwise noted.)
Parameter
Conditions
Min.
Typ.
Max.
Units
Input Offset Voltage
VOS
vs Temperature
-25°C to +125°C
±.01
±2
mV
±15
±30
µV/°C
µV/°C
vs Temperature
-55°C to -25°C
±20
±40
vs Supply Voltage
VS = ±10V to ± VMAX
±2.5
±10
µV/V
±20
±60
µV/W
vs Power
Input Bias Current
IB
Input Offset Current
IOS
Specified Temperature Range
4
50
pA
±1
±30
pA
±5
±20
nA
Input Characteristics
Common-Mode Voltage Range
-55°C to +85°C
+85°C to +125°C
Common-Mode Rejection
±(œVSœ- 6)
±(œVSœ- 3)
±(œVSœ- 6.5)
±(œVSœ- 3.2)
V
113
dB
VCM = ±(œVSœ- 6V)
VCM = ±22V
V
95
dB
Input Capacitance*
5
pF
Input Capacitance, DC*
1
T
Gain Characteristics
Open Loop Gain at 10Hz
RL = 10k
90
Gain Bandwidth Product*
97
dB
1.6
MHz
Output
Voltage Swing
IO = 5A, Continuous
±(œVSœ- 5.5)
±(œVSœ- 4.5)
V
IO = 2A
±(œVSœ- 4.5)
±(œVSœ- 3.6)
V
±(œVSœ- 4)
±(œVSœ- 3.2)
V
9
10
A
6
IO = 0.5A
Current Peak
AC Performance
Slew Rate
10
V/µS
Power Bandwidth*
RL = 8 , VO = 20Vrms
55
KHz
Setting Time to 0.1%*
2V Step
2
µS
Capacitive Load*
Specified Temperature Range, G =1
3.3
A
Specified Temperature Range, G >10
Phase Margin*
SOA
Specified Temperature Range, RL = 8
40
Degrees
Power Supply
Power Supply Voltage, ±VS
±10
±35
±40
V
20
25
mA
25
35
mA
OMA541SK
1.25
1.5
°C/W
OMA541SKC
1.00
1.2
°C/W
OMA541SD
.85
.95
°C/W
OMA541SK
1.60
1.9
°C/W
OMA541SKC
1.20
1.5
°C/W
OMA541SD
1.00
1.15
Current Quiescent
Specified Temperature Range
Thermal Resistance
qJC (Junction-to-Case)
AC Output f 60 Hz
DC Output
3.4
qJA (Junction-to-Ambient)
30
Note: *Guaranteed - not tested 100%.
3.4 - 42
°C/W
°C/W
OMA541SK OMA541SKC OMA541SD OMA541SDZ
TYPICAL PERFORMANCE CURVES
TA = +25°C, VS = ±VDC unless otherwise noted
Input Bias Current
VS Temperature
Open-Loop Gain and
Phase VS Frequency
Input Bias Current, (nA)
100
Voltage Gian, (dB)
10
1
0.1
0.01
0.001
-25
0
25
50
75
100
110
100
90
80
70
60
50
40
30
20
10
0
-10
Phase
Gain
ZL = 3.3nF
10
1
125
100
Junction Temperature, (C°)
10k
100k
1M
10M
Output Voltage Swing
VS Output Current
1.3
6
1.2
5
± VS − VOUT , (V)
Normalized IQ
1k
Frequency, (Hz)
Normalized Quiescent Current VS
Total Power Supply Voltage
1.1
TC = -25°C
1.0
TC = 25°C
0.9
0.8
0.7
30
40
50
(+VS) - VO
4
-VS - VO 
3
2
1
TC = 125°C
0.6
20
60
70
80
0
90
1
2
3
4
+VS + -VS , (V)
5
6
7
8
9
10
IOUT, (A)
Voltage Noise Density
VS Frequency
Total Harmonic Distortion
VS Frequency
1k
10
THD + Noise, (%)
Voltage Noise Density,
ZL = 3.3nF
100
1.0
PO = 100mW
0.1
3.4
PO = 5W
PO = 50W
0.01
10
1
10
100
1k
10k
100k
0.001
Frequency, (Hz)
10
100
1k
Frequency, (Hz)
3.4 - 43
10k
100k
OMA541SK OMA541SKC OMA541SD OMA541SDZ
Typical Output Current
VS Temperature (Case Dependent)
120
12
110
10
Output Current, (A)
CMRR, (dB)
Typical Common-Mode Rejection
VS Frequency (Case Dependent)
100
90
80
70
60
50
10
100
1k
10k
Frequency, (Hz)
100k
T
TC
TC
=1
25
C
=8
°C
C
IOUT +
2
0
-50
-25
0
25
T
25
TC
=1
TC
25
1.0
0.1
C
=8
100
100 125
°C
5°
C
10
=
25
TC
°C
TC
=1
25
T
C
=8
°C
5°C
=
25
°C
1.0
0.1
10
75
Power DIP
Safe Operating Area
OMA541SD/SDZ
1.0
1
50
Standard TO-3
Safe Operating Area
OMA541SK
°C
5°
4
1M
10
=
IOUT -
6
Case Temperature, (°C)
Copper Slug TO-3
Safe Operating Area
OMA541SKC
10
8
0.1
1
10
100
1
10
100
MECHANICAL OUTLINE
D-8
D-8Z
COMMON LEAD
1.04
.540
.790
.260
MAX.
.125
.540
.125 DIA.
2 HOLES
.540
.540
.900
.290
.040 R.
MIN.
.125
.100
.150
.100
.300
.030 DIA.
.180 MIN.
.300
TO-3-8
3.4
A
B
C
E
SEATING
PLANE
K
D
H
J
G
Q
F 1
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