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APEX

PA05 Datasheet Preview

PA05 Datasheet

Power Operational Amplifier

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PA05
Power Operational Amplifier
RoHS
COMPLIANT
FEATURES
• High Internal Dissipation — 250 Watts
• High Voltage, High Current — 100V, 30A
• High Slew Rate — 100V/µs
• 4 Wire Current Limit Sensing
• Low Distortion
• External Shutdown Control
• Optional Boost Voltage Inputs
• Evaluation Kit — see EK45
APPLICATIONS
• Linear And Rotary Motor Drives
• Sonar Transducer Driver
• Yoke/magnetic Field Excitation
• Programmable Power Supplies To ±45V
• Audio up to 500W
DESCRIPTION
The PA05 is a high voltage MOSFET power operational amplifier that extends the performance limits of
power amplifiers in slew rate and power bandwidth, while maintaining high current and power dissipation
ratings.
The PA05 is a highly flexible amplifier. The shutdown control feature allows the output stage to be turned
off for standby operation or load protection during fault conditions. Boost voltage inputs allow the small sig‐
nal portion of the amplifier to operate at a higher voltage than the high current output stage. The amplifier is
then biased to achieve close linear swings to the supply rails at high currents for extra efficient operation.
External compensation tailors slew rate and bandwidth performance to user needs. A four wire sense tech‐
nique allows precision current limiting without the need to consider internal or external mΩ parasitic resis‐
tance in the output line. The output stage is protected by thermal limiting circuits above junction
temperatures of 175°C.
www.apexanalog.com
© Apex Microtechnology Inc.
All rights reserved
Nov 2018
PA05U Rev N




APEX

PA05 Datasheet Preview

PA05 Datasheet

Power Operational Amplifier

No Preview Available !

PA05
Figure 1: Equivalent Schematic
SHUTDOWN
12
9
+VB
Q12
Q1
Q13
Q16
–IN
1
D19
+IN
2
–VB
5
Q17
D20
Q30
+VS 8
D1
Q8
4 COMP
3
D27
D31
Q4
D6
Q5
D9 OUT
D5 7
Q10 Q14
Q18 ICL
Q22 11
10
Q24 ICL
Q25
BIAS
Q21
Q29
Q33
D4
6 –VS
TYPICAL CONNECTION
Figure 2: Typical Connections
*
* Use 10μF per Amp of output current
*
2
PA05U Rev N


Part Number PA05
Description Power Operational Amplifier
Maker APEX
PDF Download

PA05 Datasheet PDF






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