L6208 查看數據表（PDF） - STMicroelectronics
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L6208 Datasheet PDF : 35 Pages
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Pin connections
3
Pin connections
L6208
Figure 2. Pin connections (top view)
CLOCK
CW/CCW
SENSEA
RCA
OUT1A
GND
GND
OUT1B
RCB
SENSEB
VREFB
HALF/FULL
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
D99IN1083
VREFA
RESET
VCP
OUT2A
VSA
GND
GND
VSB
OUT2B
VBOOT
EN
CONTROL
PowerDIP24/SO24
GND
N.C.
N.C.
VSA
OUT2A
N.C.
VCP
RESET
VREFA
CLOCK
CW/CCW
SENSEA
RCA
N.C.
OUT1A
N.C.
N.C.
GND
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
29
9
28
10
27
11
26
12
25
13
24
14
23
15
22
16
21
17
20
18
19
D99IN1084
PowerSO36(1)
GND
N.C.
N.C.
VSB
OUT2B
N.C.
VBOOT
EN
CONTROL
HALF/FULL
VREFB
SENSEB
RCB
N.C.
OUT1B
N.C.
N.C.
GND
1. The slug is internally connected to pins 1, 18, 19 and 36 (GND pins).
Package
Table 4. Pin description
SO24/
PowerDIP24
PowerSO36
Name
Type
Function
Pin no.
Pin no.
1
2
3
4
5
6, 7, 18, 19
10
11
12
13
15
1, 18, 19, 36
CLOCK
CW/CCW
SENSEA
RCA
OUT1A
GND
Logic input
Step clock input. The state machine makes one step on
each rising edge.
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 has to be connected to GND or +5 V.
Power supply
Bridge A source pin. This pin must be connected to
power ground through a sensing power resistor.
RC pin
RC network pin. A parallel RC network connected
between this pin and ground sets the current controller
OFF-time of the bridge A.
Power output
Bridge A output 1.
GND
Ground terminals. In PowerDIP24 and SO24 packages,
these pins are also used for heat dissipation toward the
PCB. On PowerSO36 package the slug is connected to
these pins.
6/35
DocID7514 Rev 2
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