Overview
AN41908A is a lens motor driver IC
for camcorder and security-camera
featuring the functions of Iris control.
Voltage drive system and
several torque ripple correction techniques
enable super- low noise microstep drive.
Features
—Voltage drive system 256-step
microstep drivers (2 systems)
—Built-in Iris controller
—Motor control by 4-line serial data communication
—2 systems of open-drain for driving LED
Applications
—Camcorders, Security Cameras
Package
—44 pin Plastic Quad Flat Non-leaded Package
Type
—Bi-COMS IC
Application circuit
V+
V–
1
2
3
4
5
6
7
8
9
10
11
OP3INP
SENS
OP3OUT
REF
AVDD3
ADTESTIN
TEST
OUTE2
VDD5
GND5
OU T E 1
12
13
14
15
16
17
18
19
20
21
22
N.C.
OUTD2
OUTD1
MGNDB
OUTC2
OUTC1
MVCCB
OUTB2
OUTB1
OUTA2
MVCCA
44
43
42
41
40
39
38
37
36
35
34
PLS1
SIN
VD_FZ
VD_IS
RSTB
OP4OUT
OP4INN
VREF
GNDA
CREFIN
PLS2
23
33
32
31
30
29
28
27
26
25
24
MGNDA
OUTA1
N.C.
SCK
SOUT
CS
GNDD
LED2
LED1
OSCIN
DVDD
Hall
Sensor
H–
H+
0
0.
1
F
100 pF
0.1
F
10k
AVDD3
(3.1 V)
M
VDD5
(4.8 V)
MVCCB
(4.8 V)
MVCCA
(4.8 V)
DVDD
(3.1 V)
0.01
F
V+
V–
1
2
3
4
5
6
7
8
9
10
11
OP3INP
SENS
OP3OUT
REF
AVDD3
ADTESTIN
TEST
OUTE2
VDD5
GND5
OU T E 1
12
13
14
15
16
17
18
19
20
21
22
N.C.
OUTD2
OUTD1
MGNDB
OUTC2
OUTC1
MVCCB
OUTB2
OUTB1
OUTA2
MVCCA
44
43
42
41
40
39
38
37
36
35
34
PLS1
SIN
VD_FZ
VD_IS
RSTB
OP4OUT
OP4INN
VREF
GNDA
CREFIN
PLS2
23
33
32
31
30
29
28
27
26
25
24
MGNDA
OUTA1
N.C.
SCK
SOUT
CS
GNDD
LED2
LED1
OSCIN
DVDD
1
2
3
4
5
6
7
8
9
10
11
OP3INP
SENS
OP3OUT
REF
AVDD3
ADTESTIN
TEST
OUTE2
VDD5
GND5
OU T E 1
1
2
3
4
5
6
7
8
9
10
11
OP3INP
SENS
OP3OUT
REF
AVDD3
ADTESTIN
TEST
OUTE2
VDD5
GND5
OU T E 1
12
13
14
15
16
17
18
19
20
21
22
N.C.
OUTD2
OUTD1
MGNDB
OUTC2
OUTC1
MVCCB
OUTB2
OUTB1
OUTA2
MVCCA
12
13
14
15
16
17
18
19
20
21
22
N.C.
OUTD2
OUTD1
MGNDB
OUTC2
OUTC1
MVCCB
OUTB2
OUTB1
OUTA2
MVCCA
44
43
42
41
40
39
38
37
36
35
34
PLS1
SIN
VD_FZ
VD_IS
RSTB
OP4OUT
OP4INN
VREF
GNDA
CREFIN
PLS2
44
43
42
41
40
39
38
37
36
35
34
PLS1
SIN
VD_FZ
VD_IS
RSTB
OP4OUT
OP4INN
VREF
GNDA
CREFIN
PLS2
23
33
32
31
30
29
28
27
26
25
24
MGNDA
OUTA1
N.C.
SCK
SOUT
CS
GNDD
LED2
LED1
OSCIN
DVDD
23
33
32
31
30
29
28
27
26
25
24
MGNDA
OUTA1
N.C.
SCK
SOUT
CS
GNDD
LED2
LED1
OSCIN
DVDD
Hall
Sensor
H–
H+
0
0.
1
F
100 pF
0.1
F
10k
AVDD3
(3.1 V)
M
VDD5
(4.8 V)
MVCCB
(4.8 V)
MVCCA
(4.8 V)
DVDD
(3.1 V)
0.01
F
Panasonic AN41908A Application Circuit
Panasonic AN41908A Application Circuit
Panasonic can prepare evaluation board and more specific applica
Panasonic can prepare evaluation board and more specific applica
tion notes.
tion notes.
