iC-HG
3 A LASER SWITCH
nar y
limi
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Rev A1, Page 1/19
APPLICATIONS
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Pump lasers
o
Laser projection
o
Laser TV
FEATURES
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Six channel laser switch from CW up to 200 MHz
CW operation with up to 500 mA per channel
Spike-free switching of the laser current
6 x 1 channels with TTL inputs
3 x 2 channels with LVDS inputs
Operates as six independent voltage-controlled current sinks
Switching outputs (LDKx) are 12 V capable for blue laser
diodes
Fast and slow switching mode
Simple current control at pins CIx
CIx voltage < 3 V for full current
Wide supply voltage range from 3 to 5.5 V
All channels can be paralleled for 3 A operation
Multiple iC-HG can be connected in parallel for higher currents
Open drain error output
Thermal shutdown
PACKAGES
QFN28 5 mm x 5 mm
BLOCK DIAGRAM
VDD
iC-HG
LDK1
CI1
EN1
+
&
AGND1
LDK2
CI2
EN2
CI3
EN3
CI4
EN4
CI5
EN5
CI6
EN6
VDD
-
&
AGND2
LDK3
AGND3
LDK4
AGND4
LDK5
AGND5
LDK6
AGND6
NER
80%
60%
40%
20%
ELVDS
&
Power &
Temperature
Monitor
GND
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ICHAUS [ IC-HAUS GMBH ]
