L6219DS View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L6219DS

STEPPER MOTOR DRIVER

STMicroelectronics 

L6219

current regulation.

Unused inputs should be connected to proper

voltage levels in order to get the highest noise im-

munity.

As the circuit operates with switch mode current

regulation, interference generation problems

might arise in some applications. A good measure

might then be to decouple the circuit with a 100nF

capacitor, located near the package between

power line and ground.

The ground lead between Rs, and circuit GND

should be kept as short as possible.

A typical Application Circuit is shown in Fig. 3.

Note that Ct must be NPO type or similar else.

To sense the winding current, paralleled metal

film resistors are recommended (Rs)

Note 1 - Other information is available as "Smart

Power Development System":

Test board HWL6219 (Stepper driver)

Software SWL6219 (Floppy disc)

Figure 3: Typical Application Circuit. (Pin out referred to DIP24 package)

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