L6208Q datasheet(6/34 Pages) STMICROELECTRONICS

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Pin connection

L6208Q

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DocID018710 Rev 3

Pin connection

Figure 2.Pin connection (top view)

Note:

The exposed PAD must be connected to GND pin.

AM02556v1

EPAD

OUT1A

OUT1B

GND

VSA

VSB

GND

Table 3. Pin description

Name

Type

Function

CLOCK

Logic input

Step clock input. The state machine makes one step on each rising

edge.

CW/CCW

Logic input

Selects the direction of the rotation. HIGH logic level sets clockwise

direction, whereas low logic level sets counterclockwise direction. If

not used, it must be connected to GND or +5 V.

45, 46

SENSEA

Power supply

Bridge A source pin. This pin must be connected to power ground

through a sensing power resistor.

RCA

RC pin

RC network pin. A parallel RC network connected between this pin

and ground sets the current controller OFF time of bridge A.

2, 3

OUT1A

Power output

Bridge A output 1.

6, 31

GND

Ground terminals. In PowerDIP24 and SO24 packages, these pins

are also used for heat dissipation towards the PCB. On PowerSO36

package the slug is connected to these pins.

10, 11

OUT1B

Power output

Bridge B output 1.

RCB

RC pin

RC network pin. A parallel RC network connected between this pin

and ground sets the current controller OFF time of bridge B.

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