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IC-HT Scheda tecnica(PDF) 19 Page - IC-Haus GmbH

Il numero della parte IC-HT
Spiegazioni elettronici  DUAL CW LASER DIODE DRIVER
PDF  42 Pages
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Produttore elettronici  ICHAUS [IC-Haus GmbH]
Homepage  http://www.ichaus.biz
Logo ICHAUS - IC-Haus GmbH

IC-HT Scheda tecnica(HTML) 19 Page - IC-Haus GmbH

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iC-HT
DUAL CW LASER DIODE DRIVER
Rev A1, Page 19/42
5
6
1
4
STATUS0 (Addr. 0x00)
0
PDOVDD
MEMERR
(Addr. 0x10 )
Pin
OVC2
CFGTIMO
(Addr. 0x15 )
Pin
3
INITRAM
OVT
OVC1
2
7
1
1
&
1
ENCH2
DISC2
INSOPEN
EMCOPEN
EC2
ENCH1
DISC1
EC1
&
1
&
1
1
1
&
1
Figure 7: Laser control logic in MCU mode
COMBINING BOTH CHANNELS
iC-HT can drive one laser diode up to 1500 mA with
both channels combined.
Therefore register bit MERGE must be set to 1. Dis-
able channel register bits DISC1 and DISC2 must both
be set to 0 and both enable channel pins EC1 and EC2
must be set hi.
MERGE
Addr. 0x1B; bit 6
R/W 0
0
Channel 1 and 2 operate independently
1
Power transistor from channel 2 in parallel with
channel 1, controlled by channel 1
Table 42: Channel merging
When both channels are combined the control is done
by channel 1. APC and ACC can both be used with
both channels combined. In ACC mode, the reference
needs be set to 50% of the desired current value. This
is not required for APC.



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