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.

should be kept as short as possible.

A typical Application Circuit is shown in Fig. 3.

To sense the winding current, paralleled metal

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)

L6219

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