UM1943
Circuit description
DocID028304 Rev 1
19/28
Figure 14: X-NUCLEO-IHM07M1
– charge pump circuit
4.2
Power section
– Overcurrent detection (OCP) and current
sensing measurement
The L6230 driver implements overcurrent protection with an internal detection circuit that
does not require an external resistor. The current is compared with an embedded current
reference and the output generates a fault condition to the DIAG pin that goes to ground.
U
11
L
6
2
3
0
P
D
IN
1
9
C
PO
U
T
24
VSA
4
N.C
.
3
N.C
.
2
G
N
D
1
OUT
3
32
N.C
.
31
V
B
O
O
T
30
E
N
3
29
C
P-
28
V
C
P
7
C
P+
13
N.C
.
14
OUT
1
15
N.C
.
16
N.C
.
17
G
N
D
18
G
N
D
19
N.C
.
20
N.C
.
21
E
N
1
10
SE
N
S1
12
N.C
.
23
N.C
.
6
IN
2
26
SE
N
S2
8
SE
N
S3
25
E
N
2
27
IN
3
11
OUT
2
5
DI
AG
/EN
22
VSB
33
N.C
.
34
N.C
.
35
G
N
D
36
EP
37
D
12
S
M
B
J
4
8
A
-T
R
C
12
10n
100V
C
9
220n
F,
16V
V
IN
+
C
13
100n
F/
100V
C
15
100u
F,
63V
J
16
R
IN
G
1
C
P-
C
11
100n
F/
100V
C
PO
U
T
R
21
33K
J
1
C
O
N
2
1
2
C
P+
CURR
E
N
T
R
EF
C
P+
D
1
S
M
B
D
7000
1
2
3
GSPG14092015DI1535
