HIGH POWER, HIGH CURRENT
-In
R
CL
-V
S
+In
+V
S
Current
Sense
Output
Drive
(ext.)
Output
Current
Sense
NC
+V
S
-V
S
-In
+In
NC
Output
Drive
R
CL
Output
1
2
3
4
5
6
7
8
+
-
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.
OMA541SK
OMA541SD
OMA541SKC
OMA541SDZ
ABSOLUTE MAXIMUM RATINGS
@ 25°C
Supply Voltage, +VSTo -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
3.4
SCHEMATIC PIN CONNECTION
Pin 1: -V
4 11 R1
Supersedes 2 05 R0
8765
1234
•
Pin 1 Designation
3.4 - 41
D-8 Top View
S
Pin 2: NC
Pin 3: OUTPUT
Pin 4: CS
Pin 5: +V
S
Pin 6: NC
Pin 7: +IN
Pin 8: -IN
TO-3 Top View
OMA541SK OMA541SKC OMA541SD OMA541SDZ
3.4
ELECTRICAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Input Offset Voltage
V
OS
vs Temperature -25°C to +125°C ±15 ±30 µV/°C
vs Temperature -55°C to -25°C ±20 ±40 µV/°C
vs Supply Voltage VS= ±10V to ± V
vs Power ±20 ±60 µV/W
Input Bias Current
I
B
Input Offset Current ±1 ±30 pA
I
OS
Input Characteristics
Common-Mode Voltage Range -55°C to +85°C ±(œVSœ- 6) ±(œVSœ- 3) V
Common-Mode Rejection VCM= ±(œVSœ- 6V) 113 dB
Input Capacitance* 5pF
Input Capacitance, DC* 1T
Gain Characteristics
Open Loop Gain at 10Hz RL= 10k 90 97 dB
Gain Bandwidth Product* 1.6 MHz
Output
Voltage Swing IO= 5A, Continuous ±(œVSœ- 5.5) ±(œVSœ- 4.5) V
Current Peak 910 A
AC Performance
Slew Rate 6 10 V/µS
Power Bandwidth* RL= 8 , VO= 20V
Setting Time to 0.1%* 2V Step 2 µS
Capacitive Load* Specified Temperature Range, G =1 3.3 A
Phase Margin* Specified Temperature Range, RL= 8 40 Degrees
Power Supply
Power Supply Voltage, ±V
Current Quiescent 20 25 mA
Thermal Resistance
qJC(Junction-to-Case) AC Output f 60 Hz
qJA(Junction-to-Ambient) 30 °C/W
S
Specified Temperature Range ±5 ±20 nA
+85°C to +125°C ±(œVSœ- 6.5) ±(œVSœ- 3.2) V
VCM= ±22V 95 dB
IO= 2A ±(œVSœ- 4.5) ±(œVSœ- 3.6) V
IO= 0.5A ±(œVSœ- 4) ±(œVSœ- 3.2) V
Specified Temperature Range, G >10 SOA
Specified Temperature Range 25 35 mA
OMA541SK 1.25 1.5 °C/W
OMA541SKC 1.00 1.2 °C/W
OMA541SD .85 .95 °C/W
DC Output
OMA541SK 1.60 1.9 °C/W
OMA541SKC 1.20 1.5 °C/W
OMA541SD 1.00 1.15 °C/W
(TC= 25°C; VS= ±34 VDCunless otherwise noted.)
±.01 ±2 mV
MAX
rms
±10 ±35 ±40 V
±2.5 ±10 µV/V
450pA
55 KHz
Note: *Guaranteed - not tested 100%.
3.4 - 42
OMA541SK OMA541SKC OMA541SD OMA541SDZ
110
1
Voltage Gian, (dB)
Frequency, (Hz)
Open-Loop Gain and
Phase VS Frequency
100
90
80
70
60
50
40
30
20
10
0
-10
10 100 1k 10k 100k 1M 10M
100
Input Bias Current, (nA)
10
1
0.1
0.01
0.001
-25
Junction Temperature, (C°)
Input Bias Current
VS Temperature
0 25 50 75 100 125
1.3
Normalized I
Q
20
+V
S
+ -VS, (V)
Normalized Quiescent Current VS
Total Power Supply Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
30 40 50 60 70 80 90
1k
Voltage Noise Density,
Frequency, (Hz)
Voltage Noise Density
VS Frequency
1
100
10
10 100 1k 10k 100k
TC = 25°C
TC = -25°C
TC = 125°C
1
6
5
4
3
2
1
0
2345678910
±V
S
− V
OUT
, (V)
Output Voltage Swing
VS Output Current
I
OUT,
(A)
-VS- VO
(+VS) - V
O
10
THD + Noise, (%)
Frequency, (Hz)
Total Harmonic Distortion
VS Frequency
10 100 1k 10k 100k
1.0
0.1
0.01
0.001
PO = 100mW
PO = 5W
PO = 50W
ZL = 3.3nF
ZL = 3.3nF
Phase
Gain
TYPICAL PERFORMANCE CURVES
TA= +25°C, VS= ±VDCunless otherwise noted
3.4 - 43
3.4
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
OMA541SK OMA541SKC OMA541SD OMA541SDZ
120
CMRR, (dB)
Frequency, (Hz)
Typical Common-Mode Rejection
VS Frequency (Case Dependent)
10
110
100
80
70
60
50
90
100 1k 10k 100k 1M
12
Output Current, (A)
Case Temperature, (°C)
Typical Output Current
VS Temperature (Case Dependent)
-50
10
8
6
4
2
0
-25 0 25 50 75 100 125
I
OUT
+
I
OUT
-
10
Safe Operating Area
OMA541SKC
T
C
= 25°C
1.0
0.1
1 10 100
T
C
= 85°C
T
C
= 125°C
10
Safe Operating Area
OMA541SK
T
C
= 25°C
1.0
0.1
1 10 100
T
C
= 85°C
T
C
= 125°C
10
Safe Operating Area
OMA541SD/SDZ
Copper Slug TO-3 Standard TO-3 Power DIP
T
C
= 25°C
1.0
0.1
1 10 100
T
C
= 125°C
T
C
= 85°C
H
1
2
3
4
5
6
7
8
F
J
G
Q
R
K
A
B
C
E
D
SEATING
PLANE
.100
.300
1.04
.540
.125
.790
.290
.125 DIA.
2 HOLES
.125
.540
.150
.030 DIA.
.040 R.
MIN.
.180 MIN.
.900
.260
MAX.
.100
.540
.540
.300
MECHANICAL OUTLINE
D-8 D-8Z COMMON LEAD
3.4
TO-3-8
INCHES MILLIMETERS
DIM MIN MAX MIN MAX
A 1.510 1.550 38.35 39.37
B .745 .770 18.92 19.56
C .260 .300 6.60 7.62
D .038 .042 0.97 1.07
E .080 .105 2.03 2.67
F 40° BASIC 40° BASIC
G .500 BASIC 12.7 BASIC
H 1.186 BASIC 30.12 BASIC
J .593 BASIC 15.06 BASIC
K .400 .500 10.16 12.70
Q .151 .161 3.84 4.09
R .980 1.020 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.
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