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IC-WKN_14 Datasheet, PDF (1/12 Pages) IC-Haus GmbH – 15 V CW LASER DIODE DRIVER
iC-WKN
15 V CW LASER DIODE DRIVER
FEATURES
o CW operation up to 300 mA from 2.4 to 15 V supply voltage
o Rapid soft start after power-on typical within 70 µs
o Optimised for N-type laser diodes
o Simple output power adjustment via an external resistor (APC)
o Power control loop accuracy better than 1.5% with changes in
temperature, supply voltage and load current
o Integrated reverse polarity protection for the iC and laser diode
o Strong suppression of transients with very small external
capacitors; integrated flyback path
o Permanent shut-down with excessive temperature and
overcurrent (i.e. if the laser diode is damaged or the feedback
current path fails)
o Two feedback inputs permit all current LD types to be used
(N/P/M configurations)
o Modulation via the feedback inputs is possible
o Wide monitor current range from 2.5 µA to 6.25 mA
o Pin compatible to iC-WK and iC-WKL (SO8 package)
Rev C1, Page 1/12
APPLICATIONS
o Laser diode modules
o Laser levels
PACKAGES
SO8
DFN10
(thermal pad) 4 mm x 4 mm
BLOCK DIAGRAM
+2.4..+15 V
6
CVCC
VCC
..47 nF..
TRANSIENT
PROTECTION
iC−WKN
1
D
NQ
R
GND
1
GND
OVERCURRENT
OVERTEMP.
suitable laser diode configurations: N, P, M
MD LD
MD LD
LDA
7
CLDA
..1 uF..
MDK
4
−
MDA
5
+
VREF
0.5 V
2
CI
LDK
8
MD LD
FEEDBACK MON.
CI
..100 nF..
RM
0.08..200 k Ω
CM
47 pF
AGND
3
LD
MD
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http://www.ichaus.com