Features: · ABLE TO DRIVE BOTH WINDINGS OF BIPOLAR STEPPER MOTOR· OUTPUT CURRENT UP TO 500mA EACH WINDING· WIDE VOLTAGE RANGE 4.5V TO 10V· HALF-STEP, FULL-STEP AND MICROSTEPPING MODE· BUILT-IN PROTECTION DIODES· INTERNAL PWM CURRENT CONTROL· LOW OUTPUT SATURATION VOLTAGE· DESIGNED FOR UNSTABILIZED...
38000: Features: · ABLE TO DRIVE BOTH WINDINGS OF BIPOLAR STEPPER MOTOR· OUTPUT CURRENT UP TO 500mA EACH WINDING· WIDE VOLTAGE RANGE 4.5V TO 10V· HALF-STEP, FULL-STEP AND MICROSTEPPING MODE· BUILT-IN PROTE...
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Symbol | Parameter | Value | Unit |
VS | Supply Voltage | 30 | V |
Io | Output Current (peak) | ±1 | A |
Io | Output Current (continuous) | ±0.3 | A |
VSS | Logic Supply Voltage | 7 | V |
VIN | Logic Input Voltage Range | -0.3 to VSS | V |
Vsense | Sense Output Voltage | 1.5 | V |
TJ | Junction Temperature | +150 | |
Top | Operating Temperature Range | -20 to +85 | |
Tstg | Storage Temperature Range | -55 to +150 |
The 38000 is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar tepper motor or bidirectionally control two DC motors. The L6219R with a few external components form a complete control and drive circuit for LS-TTL or microprocessor controlled stepper motor system.
The power stage is a dual full bridge capable of sustaining 10V and including four diodes for current recirculation.A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction.An internal pulse-widthmodulation (PWM) controls the output current to 500mA with peak start-up current up to 1A.
Wide range of current control from 500mA (each bridge) is permitted by means of two logic inputs and an external voltage reference. A phase input to each bridge determines the load current direction.A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.