SA60U

1

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

SA60

FEATURES

♦LOWCOSTCOMPLETEH-BRIDGE

♦SELF-CONTAINEDSMARTLOWSIDE/

HIGHSIDEDRIVECIRCUITRY

♦WIDESUPPLYRANGE:UPTO80V

♦10ACONTINUOUSOUTPUT

♦ISOLATEDCASEALLOWSDIRECT

HEATSINKING

♦FOURQUADRANTOPERATION,TORQUE

CONTROLCAPABILITY

♦INTERNAL/PROGRAMMABLEPWM

FREQUENCYGENERATION

APPLICATIONS

♦BRUSHTYPEMOTORCONTROL

♦CLASSDSWITCHMODEAMPLIFIER

♦REACTIVELOADS

♦MAGNETICCOILS(MRI)

♦ACTIVEMAGNETICBEARING

♦VIBRATIONCANCELLING

H-Bridge Motor Driver/Amplifiers

SA60

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

H-Bridge

Drive

555

10

11

9

8

12

1

7

6

3

4

2

2.58K

49K

2 6

7

1

4

8

+Vs

B OUT

A OUT

Isense A

Isense B

POWER

GND

DISABLE

ANALOG IN

Cf/PWM IN

ANALOG GND

Vcc

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

JUN 2009

APEX − SA60UREVL

DESCRIPTION

The SA60 is a pulse width modulation amplifier that

cansupply10Acontinuouscurrenttotheload.Thefull

bridge amplifier can be operated over a wide range

ofsupplyvoltages.Allofthedrive/controlcircuitryfor

thelowsideandhighsideswitchesareinternaltothe

hybrid.ThePWMcircuitryisinternalaswell,leaving

theusertoonlyprovideananalogsignalforthemotor

speed/direction,oraudiosignalforswitchmodeaudio

amplification.TheinternalPWMfrequencycanbepro-

grammedbyanexternalintegratorcapacitor.Alterna-

tively,theusermayprovideanexternalTTL-compatible

PWMsignalforsimultaneousamplitudeanddirection

controlforfourquadrantmode.

BLOCK DIAGRAM