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APEX

PA04 Datasheet Preview

PA04 Datasheet

Power Operational Amplifier

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PA04 • PA04A
Power Operational Amplifier
RoHS
COMPLIANT
FEATURES
• High Internal Dissipation — 200 Watts
• High Voltage, High Current — 200V, 20A
• High Slew Rate — 50V/µs
• 4 Wire Current Limit Sensing
• Low Distortion
• External Sleep Mode Control
• Optional Boost Voltage Inputs
• Evaluation Kit — See EK45
APPLICATIONS
• Sonar Transducer Driver
• Linear and Rotary Motor Drives
• Yoke/Magnetic Field Excitation
• Programmable Power Supplies to ±95V
• Audio up to 400W
DESCRIPTION
The PA04 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 PA04 is a highly flexible amplifier. The sleep mode feature allows ultra-low quiescent current for
standby operation or load protection by disabling the entire amplifier. Boost voltage inputs allow the small
signal 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 performance to user needs. A four wire sense technique allows precision cur-
rent limiting without the need to consider internal or external mΩ parasitic resistance in the output line.
The JEDEC MO-127 12-pin Power Dip™ package (see Package Outlines) is hermetically sealed and isolated
from the internal circuits. The use of compressible thermal washers will void product warranty.
www.apexanalog.com
© Apex Microtechnology Inc.
All rights reserved
Nov 2018
PA04U Rev P




APEX

PA04 Datasheet Preview

PA04 Datasheet

Power Operational Amplifier

No Preview Available !

PA04 • PA04A
Figure 1: Equivalent Schematic
12 SLEEP
9 +VB
Q10
D1
D2
D3
D5
–IN
1
Q14 Q15
D6
+IN
2
Q21
–VB
5
Q22
4
COMP
Q17
D7
COMP D8
3
Q20
+VS 8
Q5
Q6
D4
Q12 Q13 ICL
11
10
ICL
Q19
Q18
D9
7
OUT
Q7
Q26
–VS 6
TYPICAL CONNECTION
Figure 2: Typical Connection
*
* Use 10μF per Amp of output current
*
2
PA04U Rev P


Part Number PA04
Description Power Operational Amplifier
Maker APEX
PDF Download

PA04 Datasheet PDF






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