PA51A Cirrus Logic Inc, PA51A Datasheet

OPAMP +/-40V 10A 8P TO-3-8 CE SG

PA51A

Manufacturer Part Number
PA51A
Description
OPAMP +/-40V 10A 8P TO-3-8 CE SG
Manufacturer
Cirrus Logic Inc
Series
Apex Precision Power™r
Datasheets

Specifications of PA51A

Amplifier Type
Power
Number Of Circuits
1
Slew Rate
2.6 V/µs
Gain Bandwidth Product
1MHz
Current - Input Bias
15nA
Voltage - Input Offset
2000µV
Current - Supply
2.6mA
Current - Output / Channel
10A
Voltage - Supply, Single/dual (±)
20 V ~ 80 V, ±10 V ~ 40 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-3-8
Number Of Channels
1
Voltage Gain Db
115 dB
Common Mode Rejection Ratio (min)
80 dB
Input Offset Voltage
8 mV
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Maximum Dual Supply Voltage
+/- 40 V
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
-3db Bandwidth
-
Lead Free Status / Rohs Status
 Details
Other names
598-1314
PA51U
FEATURES
• WIDE SUPPLY RANGE — ±10 to ±40V
• HIGH OUTPUT CURRENT — ±10A Peak
• CLASS “C” OUTPUT — Low Cost
• LOW QUIESCENT CURRENT — 2.6mA
APPLICATIONS
• DC SERVO AMPLIFIER
• MOTOR/SYNCHRO DRIVER
• VALVE AND ACTUATOR CONTROL
• DC OR AC POWER REGULATOR
DESCRIPTION
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 critical. These
amplifiers are not recommended for audio, transducer or deflec-
tion 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!
ceramic capacitors and semiconductor chips to maximize reli-
ability, minimize size and give top performance. Ultrasonically
bonded aluminum wires provide reliable interconnections at
all operating temperatures. The 8-pin TO-3 package is electri-
cally isolated and hermetically sealed. The use of compress-
ible thermal washers and/or improper mounting torque will
void the product warranty. Please see “General Operating
Considerations” .
EQUIVALENT SCHEMATIC
3
4
5
6
The PA51 and PA51A are high voltage, high output current
This hybrid integrated circuit utilizes thick film conductors,
http://www.cirrus.com
A1
C1
PA51, PA51A
P r o d u c t I n n o v a t i o n F r o m
P r o d u c t I n n o v a t i o n F r o m
Power Operational Amplifier
Q3
Q4
Q1A
Q6A
Q6B
Q1B
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
2
1
8
TYPICAL APPLICATION
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, tem-
perature induced impedance variations of the motor winding
are automatically compensated.
EXTERNAL CONNECTIONS
0/+5V
DAC
The linear relationship of torque output to current input of
+IN
–IN
4
+V
5
–V
S
4.16K
2.5K
MOTOR CURRENT IS A FUNCTION OF V
S
3
R1
R2
6
PROGRAMMABLE TORQUE CIRCUIT
TOP VIEW
N.C.
2
7
CL+
PA51 • PA51A
1
+10V
–28V
8
CL–
OUT
PA51
C1
APEX − PA51UREVR
R
R
PA51 • PA51A
CL+
CL–
PACKAGE STYLE CE
.1Ω
.1Ω
R3
R4
OUTPUT
8-PIN TO-3
IN
MAY 2009
0/6A
M
R5
.5Ω
1

Related parts for PA51A

PA51A Summary of contents

Page 1

... MOTOR/SYNCHRO DRIVER • VALVE AND ACTUATOR CONTROL • POWER REGULATOR 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 critical. These amplifiers are not recommended for audio, transducer or deflec- tion coil drive circuits ...

Page 2

... RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * The specification of PA51A is identical to the specification for PA51 in applicable column to the left. 1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. 2. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition. ...

Page 3

... FREQUENCY, F (Hz) COMMON MODE REJECTION 120 100 100 1K 10K .1M 1M FREQUENCY, F (Hz) QUIESCENT CURRENT 1.6 1.4 1.2 1 TOTAL SUPPLY VOLTAGE, V (V) S PA51 • PA51A CURRENT LIMIT .12Ω 0.3Ω - 100 125 CASE TEMPERATURE, T (°C) C POWER RESPONSE 40V 8Ω 3Ω ...

Page 4

... PA51 • PA51A GENERAL Please read Application Note 1 "General Operating Con- siderations" which covers stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www.Cirrus.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit and heat sink selection. The " ...

Page 5

... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. PA51U PA51 • PA51A 5 ...

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