iC-NZN
N-TYPE LASER DIODE DRIVER
Rev A1, Page 9/16
PMD
RMD
RVDD
LDA
+3..+5.5V
VDD
RSI
i(RSI)x540
CLDA
CVDD
100 nF..
LDA MONITOR
P
iC-NZN
IMON
LDK
RSI
NSLP
REGE
100 nF..
VDD
0.68..9kΩ
&
..300mA
1
AVG
&
VSY
SYN
+
CI
x240
REF
CI
..10 nF..
-
LVDS/TTL
CIS
EP
ECI
+
-
EN
VDD
AGND
TTL
CID
MD
ECI
OUTPUT DRIVER
INPUT INTERFACE
OverTemp.
NERR
OverCurrent
Low V(LDA)
1
Bandgap, Reference, Overtemp
OUTPUT MONITOR
T.PAD
GND
GND
RGND
Figure 4: Circuit example for P-type laser diodes.
M-type diodes
RVDD
+3..+5.5V
LDA
VDD
RSI
i(RSI)x540
CLDA
CVDD
100 nF..
LDA MONITOR
iC-NZN
IMON
M
RSI
0.68..9kΩ
NSLP
REGE
100 nF..
VDD
LDK
&
..300mA
1
AVG
&
VSY
SYN
+
CI
x240
REF
CI
..10 nF..
-
LVDS/TTL
CIS
EP
ECI
+
-
EN
VDD
AGND
TTL
CID
MD
ECI
OUTPUT DRIVER
INPUT INTERFACE
OverTemp.
NERR
RMD
PMD
OverCurrent
Low V(LDA)
1
Bandgap, Reference, Overtemp
OUTPUT MONITOR
T.PAD
GND
GND
RGND
Figure 5: Circuit example for M-type laser diodes
Althought this type of laser diode are supported by iC- ternal capacitance, thus making an accurate control
NZN, it’s strongly recommended to use iC-NZP instead much more difficult. Moreover, applications with M-
since in this configuration, all the pulses at LDK will be type laser diode case grounded are possible with iC-
coupled directly to pin MD due to monitor diode’s in- NZP only.
ICHAUS [ IC-HAUS GMBH ]
