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

SA50CE

SA50CEU

1

SA50CE

FEATURES

•LOWCOSTCOMPLETEH-BRIDGE

•SELF-CONTAINEDSMARTLOWSIDE/HIGHSIDEDRIVE

CIRCUITRY

•SINGLEENDEDSUPPLYOPERATION

•WIDESUPPLYRANGE:UPTO80V

•5ACONTINUOUSOUTPUT

•HERMETICSEALEDPACKAGE

•HIGHEFFICIENCY:95%TYPICAL

•FOURQUADRANTOPERATION,TORQUE

CONTROLCAPABILITY

•INTERNALPWMGENERATION

APPLICATIONS

•BRUSHTYPEMOTORCONTROL

•CLASSDSWITCHMODEAMPLIFIER

•REACTIVELOADS

•MAGNETICCOILS(MRI)

•ACTIVEMAGNETICBEARING

•VIBRATIONCANCELLING

DESCRIPTION

The SA50CE is a pulse width modulation amplifier that can

continuously supply 5A to the load. The full bridge amplifier

can be operated over a wide range of supply voltages. All of

the drive/control circuitry for the lowside and high side switches

are internal to the hybrid.The PWM circuitry is internal as well,

leaving the user to only provide an analog signal for the mo-

tor speed and direction, or audio signal for switchmode audio

amplification. The SA50CE is packaged in a space efficient

isolated 8-pinTO-3 that can be directly connected to a heatsink.

BLOCKDIAGRAM

TYPICALAPPLICATIONS

EXTERNALCONNECTIONS

(LOAD)

(CURRENT)

H-BRIDGE

DRIVE

CIRCUITRY

45KHz

PWM

GENERATOR

RSENSE B

GND

INPUT

(+12V)

RSENSE A

B

A

Vcc

AUDIO

INPUT

SPEAKER

GND

SA50CE

SA50CE

DC MOTOR

ANALOG

INPUT

GND

Vcc

TOP VIEW

1

2

3

4

5

6

7

8

Vcc

GND

RSENSE A

A OUT

INPUT

RSENSE B

B OUT

8-PINTO-3

PACKAGESTYLECE

H-Bridge Motor Driver/Amplifiers

SA50CE

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

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

MAY 2009

APEX − SA50CEUREVB