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PDF PA45 Data sheet ( Hoja de datos )
| Número de pieza | PA45 | |
| Descripción | HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PA45 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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MICROTECHNOLOGY
HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER
PA45
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• MONOLITHIC MOS TECHNOLOGY
• LOW COST
• HIGH VOLTAGE OPERATION—150V
• HIGH SLEW RATE—27V/µs
• HIGH POWER—5A, 85W DISSIPATION
APPLICATIONS
• MAGNETIC DEFLECTION
• PA AUDIO
• MOTOR DRIVE
• NOISE CANCELLATION
DESCRIPTION
The PA45 is a high power monolithic MOSFET operational
amplifier that achieves performance levels unavailable even in
many hybrid amplifier designs. Inputs are protected from
excessive common mode and differential mode voltages as
well as static discharge. The safe operating area (SOA) has no
second breakdown limitations and can be observed with all
type loads by choosing an appropriate current limiting resistor.
External compensation provides the user flexibility in choosing
optimum gain and bandwidth for the application.
This circuit utilizes a beryllia (BeO) substrate to minimize
thermal resistance. Ultrasonically bonded aluminum wires
provide reliable interconnections at all operating tempera-
tures. The 8-pin TO-3 package is hermetically sealed and
electrically isolated. The use of compressible isolation wash-
ers and/or improper mounting torque will void the product
warranty.
EQUIVALENT SCHEMATIC
PATENTED
TYPICAL APPLICATION
+80
RC CC
3
VI
42
7 8 RCL
RI
PA45
51
6
–20
CF
RD
RF
YOKE
±2.5A 7µSec Retrace
Horizontal Deflection Coil Amplifiers
RS
Horizontal deflection amplifiers require both high speed and
low distortion. The speed at which current can be changed in a
deflection coil is a function of the voltage available from the op
amp. In this application an 80 volt power supply is used for the
retrace polarity to provide a 7 µSec retrace time, half of which is
required for amplifier slewing. This circuit can perform 15.75
KHz deflection in up to 50µH coils at up to 5A p-p.
3
+VS
D1
Q24
Q3
D2
D4
D3
–IN D5
5
Q11
Q12
4
+IN
Q20 Q21
Q8
CC1
2
Q13
7 CC2
–VS D7
6
EXTERNAL CONNECTIONS
Q2
Q5 Q6
Q9
Q7 OUTPUT
DRIVE
Q10 8
1
Q14 Q15 CURRENT
SENSE
Q16
Q17
Q19
+VS
CC1
2
3
CURRENT
SENSE
1
OUTPUT
+IN 4
CC
TOP VIEW
R CL
RC 5
–IN
8
6
–VS
7
CC2
OUTPUT
DRIVE
CC IS NPO RATED
FOR FULL SUPPLY VOLTAGE.
PHASE
COMPENSATION
Gain
CC
RC
≥10 10pF 1KΩ
≥1 68pF 1KΩ
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected]
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet PA45.PDF ] | |
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