PA162_10 Datasheet, PDF (1/6 Pages) Cirrus Logic – Power Operational Amplifiers

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PAP1A61622
Power Operational Amplifiers
FEATURES
♦ LOW COST
♦ WIDE BANDWIDTH - 1.1 Mhz
♦ HIGH OUTPUT CURRENT - 1.5A PER AMPLIFIER
♦ WIDE COMMON MODE RANGE Includes negative
supply
♦ WIDE SUPPLY VOLTAGE RANGE Single supply:
5V to 40V Split supplies: ± 2.5V to ± 20V
♦ LOW QUIESCENT CURRENT
♦ VERY LOW DISTORTION
APPLICATIONS
♦ HALF AND FULL BRIDGE MOTOR DRIVERS
♦ AUDIO POWER AMPLIFIER
Stereo - 11.3W RMS per amplifier
Bridge - 22.6W RMS per two amplifiers
Two Bridges - 45.2W RMS per package
♦ 3 PHASE MOTOR DRIVER
3 Channels - 33.9W RMS per package
♦ IDEAL FOR SINGLE SUPPLY SYSTEMS
5V - Peripherals
12V - Automotive
28V - Avionic
♦ PACKAGING OPTIONS
20-Pin PSOP, JEDEC MO-166-AB (PA162DK)
DESCRIPTION
The amplifier design is a dual power op amp on a
single monolithic die. The quad output PA162 com-
bines two dual op amp die in a single PSOP pack-
age. This approach provides a cost-effective solu-
tion to applications where multiple amplifiers are
required or a bridge configuration is needed. Four
independent amplifiers coupled with low quiescent
current and very low THD makes this an ideal low-
distortion 4-channel audio amplifier for applications
such as laptops and computer speakers.
The quad output PA162DK is available in a surface
mount 20-pin PSOP, JEDEC MO-166-AB package.
Built-in thermal shutdown allows the devices to self-
protect against thermal overloads. Care must be ex-
ercised to observe the Safe Operating Area (SOA)
curve and proper heatsinking will ensure maximum
reliability.
The wide common mode input range includes the
negative rail, facilitating single supply applications.
This makes it possible to have a ground-based input
driving a single supply amplifier with ground acting
as the second or bottom supply of the amplifier.
+Vs
I BIAS
MONITOR
-IN
+IN
THERMAL
PROTECT
OUT
-Vs
FIGURE 1. Equivalent schematic (one channel)
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