SA60_09 Datasheet, PDF (1/6 Pages) Cirrus Logic – H-Bridge Motor Driver/Amplifiers

P r o d u c t IInnnnoovvaa t i o n FFrroomm
SAS6A600
H-Bridge Motor Driver/Amplifiers
FEATURES
♦ LOW COST COMPLETE H-BRIDGE
♦ SELF-CONTAINED SMART LOWSIDE/
HIGHSIDE DRIVE CIRCUITRY
♦ WIDE SUPPLY RANGE: UP TO 80V
♦ 10A CONTINUOUS OUTPUT
♦ ISOLATED CASE ALLOWS DIRECT
HEATSINKING
♦ FOUR QUADRANT OPERATION, TORQUE
CONTROL CAPABILITY
♦ INTERNAL/PROGRAMMABLE PWM
FREQUENCY GENERATION
APPLICATIONS
♦ BRUSH TYPE MOTOR CONTROL
♦ CLASS D SWITCHMODE AMPLIFIER
♦ REACTIVE LOADS
♦ MAGNETIC COILS (MRI)
♦ ACTIVE MAGNETIC BEARING
♦ VIBRATION CANCELLING
DESCRIPTION
The SA60 is a pulse width modulation amplifier that
can supply 10A continuous current 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 highside switches are internal to the
hybrid. The PWM circuitry is internal as well, leaving
the user to only provide an analog signal for the motor
speed/direction, or audio signal for switchmode audio
amplification. The internal PWM frequency can be pro-
grammed by an external integrator capacitor. Alterna-
tively, the user may provide an external TTL-compatible
PWM signal for simultaneous amplitude and direction
control for four quadrant mode.
BLOCK DIAGRAM
DISABLE 3
ANALOG IN ⁴
Cf/PWM IN ²
H-Bridge
Drive
26
1 ₅₅₅ 7
ANALOG GND 1
Vcc 7
48
49K
2.58K
10 _+Vs
11 B OUT
9 A OUT
8 _{Isense A}
12 _{Isense B}
6 POWER
GND
SA60U
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUN 20091
APEX − SA60UREVL