PA162

PA162U

1

P r o d u c t I n n o v a t i o n F r o m

PA162

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.

Power Operational Amplifiers

PA162

P r o d u c t I n n o v a t i o n F r o m

OUT

+Vs

-IN

+IN

-Vs

I BIAS

MONITOR

THERMAL

PROTECT

FIGURE 1. Equivalent schematic (one channel)

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

www.cirrus.com

AUG2010

APEX-PA162UREVC