iC-NZP
P-TYPE LASER DIODE DRIVER
nar y
limi
pre
Rev A1, Page 9/13
M-Type diodes
RVDD
+3..+5.5V
VDD
RSI
i(RSI)x540
LDA MONITOR
VDDA
CVDD
100 nF..
RSI
0.68.. 9kΩ
NSLP
VDD
iC-NZP
&
1
ECI
CVDDA
100 nF..
VDDL
REGE
CIS
AVG
VSY
SYN
EP
EN
VDD
&
..10 nF..
CI
CI
LVDS/TTL
+
-
REF
-
+
x280
LDA
IMON
MD
..300mA
TTL
VDD
NCID
INPUT INTERFACE
NERR
OverTemp.
1
OverCurrent
Low V(LDA)
M
ECI
OUTPUT DRIVER
RMD
Bandgap, Reference, Overtemp
OUTPUT MONITOR
GND
T.PAD
GND
PMD
RGND
Figure 4: Circuit example for M-type laser diodes (case grounded)
N-Type diodes
Althought this type of laser diodes are supported by
iC-NZP, it’s strongly recommended to use iC-NZN in-
stead, since in this configuration all the pulses at LDA
will be coupled directly to pin MD due to monitor photo
diode’s internal capacitance. Thus making an accurate
control much more difficult.
RVDD
+3..+5.5V
VDD
RSI
i(RSI)x540
LDA MONITOR
VDDA
CVDD
100 nF..
RSI
0.68.. 9kΩ
NSLP
VDD
iC-NZP
&
1
ECI
CVDDA
100 nF..
VDDL
REGE
CIS
AVG
VSY
SYN
EP
EN
VDD
&
..10 nF..
CI
CI
LVDS/TTL
+
-
REF
-
+
x280
LDA
IMON
MD
..300mA
TTL
VDD
NCID
INPUT INTERFACE
NERR
OverTemp.
1
OverCurrent
Low V(LDA)
ECI
OUTPUT DRIVER
N
RMD
Bandgap, Reference, Overtemp
OUTPUT MONITOR
GND
T.PAD
GND
PMD
RGND
Figure 5: Circuit example for N-type laser diodes
ICHAUS [ IC-HAUS GMBH ]
