PBL 3717/2
M
1
2
3
4
5
20
19
18
17
16
E
M
V
B
M
1
2
3
4
5
6
7
8
16
15
14
E
B
T
A
T
M
A
V
MM
MM
N/C
5
6
25 N/C
V
V
MM
MM
GND
GND
M
24
23
V
C
A
R
GND
13 GND
12 GND
GND
GND
GND
GND
N/C
E
7
PBL
3717/2SO
PBL
3717/2N
PBL 3717/2QN
8
22 N/C
21
15
14
13
12
11
6
7
GND
GND
GND
GND
9
I
0
V
CC
11
10
9
V
C
R
M
B
10
11
20 Phase
19
V
CC
8
V
R
T
I
1
I
1
I
1
9
C
Phase
I
0
Phase
I
10
0
Figure 3. Pin configurations.
Pin Description
DIP
1
SO
1
PLCC
10
Symbol
Description
MB
T
Motor output B, Motor current flows from MA to MB when Phase is high.
2
2
11
Clock oscillator. Timing pin connect a 56 kΩ resistor and a 820 pF in
parallel between T and Ground.
3,14
3,18
12,4
VMM
Motor supply voltage, 10 to 45 V. VMM pins should be wired
together on PCB.
4,5,
4,5,6,7,14
15,16,17
1,2,3,9,13,
12,13
14,15,16,17
GND
Ground and negative supply. Note these pins are used for heatsinking.
Make sure that all ground pins are soldered onto a suitable large copper
ground plane for efficient heat sinking.
}
28
6
7
8
9
18
19
VCC
I1
Logic voltage supply normally +5 V.
Logic input, it controls, together with the I0 input, the current level in the
output stage. The controlable levels are fixed to 100, 60, 20, 0%.
8
10
11
12
13
20
21
23
24
Phase Controls the direction of the motor current of MA and MB outputs. Motor
current flows from MA to MB when the phase input is high.
9
I0
Logic input, it controls, together with the I1 input, the current level in the
output stage. The controlable levels are fixed to 100, 60, 20, 0%.
10
11
C
Comparator input. This input senses the instaneous voltage across the
sensing resistor, filtered through a RC Network.
VR
Reference voltage. Controls the threshold voltage of the comparator and
hence the output current. Input resistance: typically 6.8kΩ ± 20%.
15
16
19
20
6
8
MA
E
Motor output A, Motor current flows from MA to MB when Phase is high.
Common emitter. Connect the sence resistor between this pin and ground.
4
ERICSSON [ ERICSSON ]
