iC-WK Datasheet PDF


Part Number

iC-WK

Description

2.4V CW LASER DIODE DRIVER

Manufacture

iC-Haus

Total Page 12 Pages
PDF Download
Download iC-WK Datasheet PDF


Features Datasheet pdf iC-WK 2.4V CW LASER DIODE DRIVER FEATURE S ° CW operation up to 60mA from 2.4.. 6V supply voltage ° Rapid soft start a fter power-on ° Simple power adjustmen t via the external resistor ° Control loop accuracy better than 1% with chang es in temperature, supply voltage and l oad current ° Integrated reverse polar ity protection for the iC and laser dio de ° Strong suppression of transients with very small external capacitors ° Integrated flyback path protects agains t transients ° Permanent shutdown with excessive temperature and overcurrent (i.e. if the laser diode is damaged or the feedback current path fails) ° Two feedback inputs permit all current LD types to be used (M/P/N configurations) ° Mod.
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iC-WK Datasheet
iC-WK
2.4V CW LASER DIODE DRIVER
FEATURES
° CW operation up to 60mA from 2.4..6V supply voltage
° Rapid soft start after power-on
° Simple power adjustment via the external resistor
° Control loop accuracy better than 1% with changes in
temperature, supply voltage and load current
° Integrated reverse polarity protection for the iC and laser
diode
° Strong suppression of transients with very small external
capacitors
° Integrated flyback path protects against transients
° Permanent shutdown with excessive temperature and
overcurrent (i.e. if the laser diode is damaged or the
feedback current path fails)
° Two feedback inputs permit all current LD types to be used
(M/P/N configurations)
° Modulation via the feedback inputs is possible
° Wide monitor current range from 10µA to 2.5mA
° Extended temperature range available as an option
Rev A1, Page 1/12
APPLICATIONS
° Battery-powered LD modules
° LD Pointers
PACKAGES
(MSOP8)
SO8
BLOCK DIAGRAM
+2.4..+5.5V
6 VCC
CVCC
...47nF...
TRANSIENT
PROTECTION
1
D
LDA 7
CLDA
..1µF..
MDK 4
- MDA 5
+
VREF
0.5V
CI 2
LDK 8
MD LD
NQ
R
iC-WK
OVER CURRENT
OVER TEMP.
CI RM
200 ..50k
..100nF..
GND
1 GND
AGND 3
suitable laser diode configurations: N, P, M
MD LD
MD LD
LD
MD
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