IC-NZP Datasheet, PDF (9/13 Pages) IC-Haus GmbH – P-TYPE LASER DIODE DRIVER

iC-NZP
P-TYPE LASER DIODE DRIVER
M-Type diodes
preliminary
Rev A1, Page 9/13
+3..+5.5V
CVDD
100 nF..
RSI
0.68.. 9kΩ
GND
VDD
RSI
NSLP
REGE
i(RSI)x540
LDA MONITOR
VD D
AVG
&
VSY
SYN
EP
EN
TTL
NCID
LVDS/TTL
+
-
VD D
VD D
NERR
T.PAD
GND
INPUT INTERFACE
OverTemp.
1
OverCurrent
Low V(LDA)
iC-NZP
RVDD
VDDA
VDDL
CVDDA
100 nF..
&
1
-
REF
+
ECI
CIS
ECI
x280
CI
LDA
IMON
MD
OUTPUT DRIVER
Bandgap, Reference, Overtemp
OUTPUT MONITOR
RGND
..10 nF..
CI
..300mA
M
RMD
PMD
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.
+3..+5.5V
CVDD
100 nF..
RSI
0.68.. 9kΩ
GND
RVDD
VDD
RSI
NSLP
REGE
i(RSI)x540
LDA MONITOR
VD D
AVG
&
VSY
SYN
EP
EN
TTL
NCID
LVDS/TTL
+
-
VD D
VD D
iC-NZP
VDDA
VDDL
CVDDA
100 nF..
&
1
CIS
ECI
..10 nF..
-
REF
+
x280
CI
CI
LDA
IMON
..300mA
MD
ECI
N
NERR
T.PAD
GND
INPUT INTERFACE
OverTemp.
1
OverCurrent
Low V(LDA)
OUTPUT DRIVER
Bandgap, Reference, Overtemp
OUTPUT MONITOR
RGND
RMD
PMD
Figure 5: Circuit example for N-type laser diodes