OMNIREL OMA541SD, OMA541SKC, OMA541SK, OMA541SDZ Datasheet
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
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