PA13 Datasheet, PDF (1/7 Pages) Cirrus Logic – POWER OPERATIONAL AMPLIFIERS

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PA13PA•1P3 A• P1A31A3A
Power Operational Amplifier
FEATURES
♦ LOW THERMAL RESISTANCE — 1.1°C/W
♦ CURRENT FOLDOVER PROTECTION
♦ EXCELLENT LINEARITY — Class A/B Output
♦ WIDE SUPPLY RANGE — ±10V to ±45V
♦ HIGH OUTPUT CURRENT — Up to ±15A Peak
APPLICATIONS
♦ MOTOR, VALVE AND ACTUATOR CONTROL
♦ MAGNETIC DEFLECTION CIRCUITS UP TO
10A
♦ POWER TRANSDUCERS UP TO 100kHz
♦ TEMPERATURE CONTROL UP TO 360W
♦ PROGRAMMABLE POWER SUPPLIES UP TO
90V
♦ AUDIO AMPLIFIERS UP TO 120W RMS
DESCRIPTION
The PA13 is a state of the art high voltage, very high
output current operational amplifier designed to drive
resistive, inductive and capacitive loads. For optimum
linearity, especially at low levels, the output stage is
biased for class A/B operation usinga thermistor com-
pensated base-emitter voltage multiplier circuit. The
safe operating area (SOA) can be observed for all op-
erating conditions by selection of user programmable
current limiting resistors. For continuous operation un-
der load, a heatsink of proper rating is recommended.
The PA13 is not recommended for gains below –3 (in-
verting) or +4 (non-inverting).
This hybrid integrated circuit utilizes thick film (cermet)
resistors, ceramic capacitors and semiconductor chips
to maximize reliability, minimize size and give top per-
formance. Ultrasonically bonded aluminum wires pro-
vide reliable interconnections at all operating temper-
atures. The 12-pin power SIP package is electrically
isolated.
EQUIVALENT SCHEMATIC


%
2"
2#

2

2

"

$




2 2


2#
2"
PA13U
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2008
(All Rights Reserved)
AUG 2008
APEX − PA13REVN