SA50CE Datasheet, PDF (1/5 Pages) Cirrus Logic – H-BRIDGE MOTOR DRIVER/AMPLIFERS

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SA5SA05C0ECE
H-Bridge Motor Driver/Amplifiers
FEATURES
• LOW COST COMPLETE H-BRIDGE
• SELF-CONTAINED SMART LOWSIDE/HIGHSIDE DRIVE
CIRCUITRY
• SINGLE ENDED SUPPLY OPERATION
• WIDE SUPPLY RANGE: UP TO 80V
• 5A CONTINUOUS OUTPUT
• HERMETIC SEALED PACKAGE
• HIGH EFFICIENCY: 95% TYPICAL
• FOUR QUADRANT OPERATION, TORQUE
CONTROL CAPABILITY
• INTERNAL PWM GENERATION
APPLICATIONS
• BRUSH TYPE MOTOR CONTROL
• CLASS D SWITCHMODE AMPLIFIER
• REACTIVE LOADS
• MAGNETIC COILS (MRI)
• ACTIVE MAGNETIC BEARING
• VIBRATION CANCELLING
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-pin TO-3 that can be directly connected to a heatsink.
BLOCK DIAGRAM
+V_S
TYPICAL APPLICATIONs
+V_S
Vcc
8-pin TO-3
PACKAGE STYLE CE
AUDIO
INPUT
SA50CE
GND
Vcc
SPEAKER
+V_S
ANALOG
INPUT
SA50CE
GND
DC MOTOR
V_CC
(+12V)
45KHz
PWM
GENERATOR
INPUT
H-BRIDGE
DRIVE
CIRCUITRY
GND
SA50_hC_ttE_p:U_{//www.cirrus.com}
(LOAD)
BA
RSENSE B RSENSE A
(CURRENT)
EXTERNAL CONNECTIONS
+V_S
3
A OUT 4
B OUT
2
1 RSENSE B
TOP VIEW
RSENSE A 5
6
Vcc
7
GND
8 _INPUT
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
MAY 2009₁
APEX − SA50CEUREVB