© 2022
24
WLD SERIES LASER DIODE DRIVERS
WLD33ND-EV EVALUATION BOARD SCHEMATIC
SHD
1
VSET
2
IMON
3
PMON
4
MODE
5
LIM
6
GND
7
RS+
8
B
9
RS-
10
A
11
PD+
12
PD-
13
VDD
14
U1
WLD33ND
1
2
3
4
J3
OUTPUT CONNECTOR
1 2 3 4 5 6
J1
INPUT CONNECTOR
W
CW
CCW
R20 5k
W
CW
CCW
R21 500
VDD
VDD
VDD
VDD
VDD
LED GREEN
VDD
VDD
VDD
VS
2.5V
VS
LDA
LDC PDA PDC
LDA
PDA PDC
LDC
IMON
PMON
SET
LIM
2.5V
2.5V
SETV
SETV
I MON PMON
VDD
PMON I MON
2
1
3
5
4
6
8
7
9
11
10
12
CC/CP MODE Switch
1
2
3
JP5
PD Range
1
3
JP4
1
2
3
JP3
VSet
1
2
3
4
JP1
HEADER 2X2
1
2
3
4
5
6
JP2
HEADER 3X2
RPD+
RPD-
PD+
PD-
LIM
RS-
RS+
VSET
EXT SET
SET BIAS
SHD
2
1
3
S1
ENABLE SWITCH
Shown in CC
A
OUT
1
IN
2
CFLY-
3
CFLY+
5
GND
4
U3 TPS60403
C6
1.0µF
C9 1.0µF
C8 1.0µF
R27
51.1
C4 4.7µF
D5 B0540W
VA-
MODE
VDD
PDM
VA-
VA-
R4
332
VA-
VA-
R17
499
R16
4.99K
R23
1.00M
R24
1.00M
R22 1.00M
R14
1.00M
R7
1.00K
R9 1.00K
R8
1.00K
R10
1.00K
R6
1.00K
2
3
1
8
4
U4A
AD8032
5
6
7
8
4
U4B AD8032
2
3
1
8
4
U2A
AD8032
5
6
7
8
4
U2B AD8032
R5 1.00K
D2 LM4040 2.5V
R18 1.00K
R13 1.00K
R19 1.00K
R3
10K
R15 150
R11
1.00K
C7
0.1
µ
F
R12 90.9K
+
C1 68
µ
F
+
C3 68
µ
F
+
C2 68
µ
F
FAN + FAN -
GND
1
PWR
2
P1
Power In
1 2 3 4 5 6 7 8
J2
TB8
T
X
1
2
3
JP10
VS+VDD
LASER TYPE (A, B OR C)
C5 0.01µF
R28
348K
BYPASS
1
NC
2
GND
3
INPUT
4
5
6
7
8
OUTPUT
SENSE
U5
C6 10µF
X
SD
ERROR
LP2989 AIMM-2.5
A/B
C
1
2
3
4
JP6
SOCKET 534206-2
1
2
3
4
JP8
SOCKET 534206-2
1
2
3
4
5
6
JP7
SOCKET 534206-3
1
2
3
4
5
6
JP9
SOCKET 534206-3
OR
Laser
Diode T
ype
Configur
ation B
oar
d
R1
4.
7
2
L
D
R
an
ge
RS
1
0.
20
1
.5
W
RS
2
0.
20
1
.5
W
RS
3
0.
50
3
.0
W
(O
R
)
LD
Ra
ng
e
2A
m
p
Se
ns
e
Re
sis
to
r
Co
nf
igurati
on
O
pt
io
ns
1.
T
w
o
CC2520
(1.5
W
att)
re
sis
to
rs
in
se
rie
s
(F
act
or
y
D
ef
aul
t -
R
S1
and
R
S2
)
2.
A
si
ng
le
C
C4724
(3
w
att)
R
S3
Figure 23. WLD33ND-EV evaluation board schematic.