Burr Brown OPA541BM, OPA541SM-BI, OPA541SM, OPA541AM-BI, OPA541AM Datasheet
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1
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OPA541
OPA541
DESCRIPTION
The OPA541 is a power operational amplifier capable
of operation from power supplies up to ±40V and
delivering continuous output currents 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 OPA541 is fabricated using a proprietary bipolar/FET process.
Pinout is compatible with popular hybrid power amplifiers such as the OPA511, OPA512 and the 3573.
High Power Monolithic
OPERATIONAL AMPLIFIER
APPLICATIONS
● MOTOR DRIVER
● SERVO AMPLIFIER
● SYNCHRO EXCITATION
● AUDIO AMPLIFIER
● PROGRAMMABLE POWER SUPPLY
FEATURES
● POWER SUPPLIES TO ±40V
● OUTPUT CURRENT TO 10A PEAK
● PROGRAMMABLE CURRENT LIMIT
● INDUSTRY-STANDARD PIN OUT
● FET INPUT
● TO-3 AND LOW-COST POWER PLASTIC
PACKAGES
The OPA541 uses a single current-limit resistor to set
both the positive and negative current limits. Applications currently using hybrid power amplifiers requiring two current-limit resistors need not be modified.
The OPA541 is available in an 11-pin power plastic
package and an industry-standard 8-pin TO-3 hermetic package. The power plastic package has a copper-lead frame to maximize heat transfer. The TO-3
package is isolated from all circuitry, allowing it to be
mounted directly to a heat sink without special insulators.
Current
Sense
Output
Drive
R
CL
+In
–In
External
+V
S
–V
S
V
O
PDS-737H
®
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
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OPA541
SPECIFICATIONS
ELECTRICAL
At TC= +25°C and VS = ±35VDC, unless otherwise noted.
OPA541AM/AP OPA541BM/SM
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
INPUT OFFSET VOLTAGE
V
OS
±2 ±10 ±0.1 ±1mV
vs Temperature Specified Temperature Range ±20 ±40 ±15 ±30 µV/°C
vs Supply Voltage V
S
= ±10V to ±V
MAX
±2.5 ±10 ✻✻µV/V
vs Power ±20 ±60 ✻✻µV/W
INPUT BIAS CURRENT
I
B
450 ✻✻ pA
INPUT OFFSET CURRENT
I
OS
±1 ±30 ✻✻ pA
Specified Temperature Range 5 ✻ nA
INPUT CHARACTERISTICS
Common-Mode Voltage Range Specified Temperature Range ±(|V
S
| – 6) ± (|VS| – 3) ✻✻ V
Common-Mode Rejection V
CM
= (|±VS| – 6V) 95 113 ✻✻ dB
Input Capacitance 5 ✻ pF
Input Impedance, DC 1 ✻ TΩ
GAIN CHARACTERISTICS
Open Loop Gain at 10Hz R
L
= 6Ω 90 97 ✻✻ dB
Gain-Bandwidth Product 1.6 ✻ MHz
OUTPUT
Voltage Swing I
O
= 5A, Continuous ±(|VS| – 5.5) ±(|VS| – 4.5) ✻✻ V
I
O
= 2A ±(|VS| – 4.5) ±(|VS| – 3.6) ✻✻ V
I
O
= 0.5A ±(|VS| – 4) ±(|VS| – 3.2) ✻✻ V
Current, Peak 9 10 ✻✻ A
AC PERFORMANCE
Slew Rate 610 ✻✻ V/µs
Power Bandwidth R
L
= 8Ω, VO = 20Vrms 45 55 ✻✻ kHz
Settling Time to 0.1% 2V Step 2 ✻ µs
Capacitive Load Specified Temperature Range, G = 1 3.3 ✻ nF
Specified Temperature Range, G >10 SOA
(1)
✻
Phase Margin Specified Temperature Range, R
L
= 8Ω 40 ✻ Degrees
POWER SUPPLY
Power Supply Voltage, ±V
S
Specified Temperature Range ±10 ±30 ±35 ✻ ±35 ±40 V
Current, Quiescent 20 25 ✻✻ mA
THERMAL RESISTANCE
θ
JC
(Junction-to-Case)
(2)
AC Output f > 60Hz 2.5 °C/W
θ
JC
(2)
DC Output 3 °C/W
θ
JA
(Junction-to-Ambient) No Heat Sink 40 °C/W
OPA541AP (Plastic) 40 °C/W
TEMPERATURE RANGE
T
CASE
AM, BM, AP –25 +85 ✻✻°C
SM –55 +125 °C
✻ Specification same as OPA541AM/AP.
NOTE: (1) SOA is the Safe Operating Area shown in Figure 1. (2) Plastic package may require insulator which typically adds 1°C/W.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
3
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OPA541
Top View TO–3
Plastic Package
CONNECTION DIAGRAMS
–In
NC
+In NC
V
O
Output
Drive
R
CL
–V
S
+V
S
Current
Sense
1357911
246810
Tab at –V
S
Current
Sense
–V
S
+In
–In
+V
S
NC
NC
Output
Drive
R
CL
V
O
1
2
3
8
5
6
4
7
ORDERING INFORMATION
TEMPERATURE CONTINUOUS
PRODUCT PACKAGE RANGE CURRENT
OPA541AP Power Plastic –25°C to +85°C 5A at 25°C
OPA541AM TO-3 –25°C to +85°C 5A at 25°C
OPA541BM TO-3 –25°C to +85°C 5A at 25°C
OPA541SM TO-3 –55°C to +125°C 5A at 25°C
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +VS to –VS...............................................................80V
Output Current .............................................................................see SOA
Power Dissipation, Internal
(1)
...........................................................125W
Input Voltage: Differential .................................................................... ±V
S
Common-mode ............................................................. ±V
S
Temperature: Pin solder, 10s........................................................ +300°C
Junction
(1)
............................................................... +150°C
Temperature Range:
AM, BM SM
Storage .................................................................... –65°C to +150°C
Operating (case) ...................................................... –55°C to +125°C
AP
Storage ...................................................................... –40°C to +85°C
Operating (case) ........................................................ –25°C to +85°C
NOTE: (1) Long term operation at the maximum junction temperature will
result in reduced product life. Derate internal power dissipation to achieve
high MTTF.
PACKAGE INFORMATION
PACKAGE DRAWING
PRODUCT PACKAGE NUMBER
(1)
OPA541AP Power Plastic 242
OPA541AM TO-3 030
OPA541BM TO-3 030
OPA541SM TO-3 030
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
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