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400V, 4A, Low Standby Current Power Amplifier in Power SIP0 pages
PA92
PA92
PA92
High Voltage Power Operational Amplifiers
FEATURES
DESCRIPTION
The PA92 is a high voltage, low quiescent current
MOSFET operational amplifier designed as a low cost
solution for driving continuous output currents up to 4A
and pulse currents up to 7A. The safe operating area
(SOA) has no second breakdown limitations and can
be observed for all type loads by choosing an appropriate current limiting resistor. The MOSFET output stage
is biased AB for linear operation. External compensation provides flexibility in choosing bandwidth and slew
rate for the application. Apex Microtechnology’s Power
SIP package uses a minimum of board space allowing
for high density circuit boards. The Power SIP package
is electrically isolated.
♦t HIGH VOLTAGE — 400V (±200V)
♦t LOW QUIESCENT CURRENT — 10mA
♦t HIGH OUTPUT CURRENT — 4A
♦t PROGRAMMABLE CURRENT LIMIT
APPLICATIONS
♦t PIEZOELECTRIC POSITIONING
♦t HIGH VOLTAGE INSTRUMENTATION
♦t ELECTROSTATIC TRANSDUCERS
♦t PROGRAMMABLE POWER SUPPLIES UP
TO 390V
EQUIVALENT SCHEMATIC
12
11
+VS
R1 R2
Q1
C1
Q3
Q2
Q6
4
CC1
Q5
Q14A
1
–IN
R3
R4
5
CC2
ILIM
9
Q8
R7
Q14B
R8
R9
Q12
6
OUT
Q13
3
IQ
2
+IN
R10
Q18
Q16
Q15
R11
–VS
7
10
Q11
R6
R5
Q4
R12
8
EXTERNAL CONNECTIONS
1
2
3
4
Rc
–IN
5
6
7
8
+IN
*
IQ
10
11
Cc
RCL
(See text.)
9
TO LOAD
AND FEEDBACK
*
–Vs
+Vs
* Bypassing required.
www.apexanalog.com
PA92U
PATENTED
12
12-pin SIP
PACKAGE
STYLE DP
Formed leads available
See package style EE
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
FEB 2013
1
PA92U REVQ
