ASMTS62C19A - DUAL FULL-BRIDGE PWM MOTOR DRIVER IC
GENERAL DESCRIPTION
The ASMTS62C19A motor driver is a CMOS monolithic integrated circuit able to drive both windings of a bipolar stepper motor or bi-directionally control two DC motors. The two output bridges can sustain 40 V and deliver up to 750 mA of continuous current each. The maximum output current, controlled by a PWM circuit, is determined by the user’s selection of a reference voltage, a sensing resistor and two logic inputs. The outputs have been optimized for a low output saturation voltage drop.
FEATURES
- Pin-to-pin compatible with the ST L6219 and the ST or Allegro L6219DS circuits
- Able to drive both windings of a bipolar stepper motor
- Load voltage supply range: 10V to 40V
- Output current up to 750mA (each bridge)
- Internal fixed Toff time PWM current control
- Built-in protection diodes
- Internal thermal shutdown
- Under-voltage lockout
- LS-TTL compatible logic inputs with pull-up resistors
- Low Ron output resistance
- Low quiescent current
- -20°C to +85°C operating temperature range
TYPICAL APPLICATIONS
- Bipolar stepper motor driver
- Two bi-directional DC motor drivers
Block Diagram
- Click on the picture above
to see an enlarged version
Data Sheet
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