鈥?/div>
DC SERVO AMPLIFIER
MOTOR/SYNCHRO DRIVER
VALVE AND ACTUATOR CONTROL
DC OR AC POWER REGULATOR
TYPICAL APPLICATION
C1
DESCRIPTION
The PA51 and PA51A are high voltage, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. Their complementary common emitter
output stage is the simple class C type optimized for low
frequency applications where crossover distortion is not criti-
cal. These amplifiers are not recommended for audio, trans-
ducer or deflection coil drive circuits. The safe operating area
(SOA) is fully specified and can be observed for all operating
conditions by selection of user programmable current limiting
resistors. Both amplifiers are internally compensated for all
gain settings. For continuous operation under load, mounting
on a heatsink of proper rating is recommended. Do not use
isolation washers!
This hybrid integrated circuit utilizes thick film conductors,
ceramic capacitors and semiconductor chips to maximize
reliability, minimize size and give top performance. Ultrasoni-
cally bonded aluminum wires provide reliable interconnec-
tions at all operating temperatures. The 8-pin TO-3 package is
electrically isolated and hermetically sealed. The use of com-
pressible thermal washers and/or improper mounting torque
will void the product warranty. Please see 鈥淕eneral Operating
Considerations鈥?
+10V
0/+5V
DAC
4.16K
R2
2.5K
鈥?8V
PA51
R1
R3
.1
鈩?/div>
0/6A
R4
.1
鈩?/div>
M
MOTOR CURRENT IS A FUNCTION OF V
IN
PROGRAMMABLE TORQUE CIRCUIT
R5
.5
鈩?/div>
The linear relationship of torque output to current input of the
modern torque motor makes this simple control circuit ideal for
many material processing and testing applications. The sense
resistor develops a feedback voltage proportional to motor
current and the small signal properties of the Power Op Amp
insure accuracy. With this closed loop operation, temperature
induced impedance variations of the motor winding are auto-
matically compensated.
EXTERNAL CONNECTIONS
+V
S
3
EQUIVALENT SCHEMATIC
3
Q1A
Q1B
2
Q3
4
A1
5
Q4
C1
Q6B
Q6A
6
8
1
鈥揑N
CL+
2
1
R
CL+
OUT
OUTPUT
+IN
4
TOP VIEW
5
6
7
8
CL鈥?/div>
R
CL鈥?/div>
鈥揤
S
N.C.
APEX MICROTECHNOLOGY CORPORATION
鈥?TELEPHONE (520) 690-8600 鈥?FAX (520) 888-3329 鈥?ORDERS (520) 690-8601 鈥?EMAIL prodlit@apexmicrotech.com
PA51 產(chǎn)品屬性
Cirrus Logic
運(yùn)算放大器 - 運(yùn)放
1
70 dB
10 mV
40 nA
Through Hole
TO-3
2.6 V/us
No
+ 85 C
- 25 C
Bipolar
115 dB
PA51相關(guān)型號(hào)PDF文件下載
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型號(hào)
版本
描述
廠商
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4
