Product specifications
SA160EE - H-Bridge Motor Driver/Amplifiers, 80V, 10A, 90° formed leads
The SA160 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 programmed by an external integrator capacitor. Alternatively, the user may provide an external TTLcompatible PWM signal for simultaneous amplitude and direction control for four quadrant mode.
TYPICAL APPLICATION
A wide variety of loads can be driven in either the voltage mode or the current mode. The most common applications use three external blocks: a low pass filter converting pulse
width data to an analog output, a difference amplifier to monitor voltage or current and an error amplifier. Filter inductors must be suitable for square waves at the switching
frequency (laminated steel is generally not acceptable). Filter capacitors must be low ESR and rated for the expected ripple current. A difference amplifier with gain of less than one translates the differential output voltage to a single feedback voltage. Dashed line connections and a higher gain difference amplifier would be used for current control. The error amplifier integrates the difference between the input and feedback voltages to close the loop.
FEATURES
• LOW COST COMPLETE H-BRIDGE
• SELF-CONTAINED SMART LOWSIDE/HIGHSIDE DRIVE CIRCUITRY
• WIDE SUPPLY RANGE: UP TO 80V
• 10A CONTINUOUS OUTPUT 14A CONTINUOUS OUTPUT FOR A-GRADE
• 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
- APEX Microtechnology product -
