IC-HG_14 Datasheet, PDF (11/20 Pages) IC-Haus GmbH – 3A LASER SWITCH

iC-HG
3 A LASER SWITCH
THERMAL SHUTDOWN
Rev B2, Page 11/20
iC-HG is protected by an integrated thermal shutdown
feature. When the shutdown temperature is reached
all channels are disabled. Falling temperature after
this shutdown will unconditionally enable all channels
again. Necessary precaution to prevent damage of the
laser may be to also disable any external control cir-
cuits for the laser output power or current control dur-
ing thermal shutdown. The error signal at pin NER can
be used to e.g. disable the control circuit.
APPLICATION EXAMPLES
..12V
3..5.5V
CVDD1
10μF
EN+LVDS
RLVDS
100
EN-LVDS
CI
CI
10nF
CVDD2
100nF
iC-HG
CI1
EN1
+
-
CI2
EN2
CI3
EN3
CI4
EN4
CI5
EN5
CI6
EN6
ELVDS
VDD
80%
60%
40%
20%
CLDA1
100μF
CLDA2
10μF
CLDA3
100nF
CLDA4
10nF
VDD
CVDD3
10nF
LDK1
&
AGND1
LDK2
&
AGND2
LDK3
AGND3
LDK4
AGND4
LDK5
AGND5
LDK6
AGND6
NER
RNER
10K
NERROR
Power &
Tem perature
Monitor
GND
Figure 9: 1 channel LVDS fast