Maiman Electronics LLC
SF8300
7
15.
Pin and terminal functions
Please, note polarity!
Never ground any lead of the output, this may cause permanent damage to the laser
diode and the driver!
Never use any grounded probes (e.g. from the oscilloscope) at the output!
Control pins are not isolated!
Fig. 3 – Controls
№
Description
1
Digital control connector
2
Laser diode driver overcurrent protection (red) and interlock (yellow) indicators. Lights red
when the protection is activated. To reset, the device must be restarted. Lights yellow when
the driver is in the locked state (see paragraph 18.1).
3
Analogue control connector
4
Current limit adjustment potentiometer. Turning the potentiometer clockwise increases the
value, counterclockwise - reduces. A
djustment from zero to maximum occurs in 12
turns.
5
Terminal for connecting the power supply 5V. Maximum wire cross-section 0.75 mm
2
.
Please, note polarity!
6
ESD protection LD short. Remove when the laser module is set up!
7
Two-position switch. One switch enables temperature controller (TEC), another switch
enables laser diode driver (DRIVER). Switches are duplicated on the analog control
connector.
8
Current control selector. Close 1-2 to use analog control connector (EXT),
2-3 to use potentiometer (INT).
9
Output current of laser diode driver adjustment potentiometer. Turning the potentiometer
clockwise increases the value, counterclockwise - reduces. A
djustment from zero to
maximum occurs in 12 turns.
10
TEC temperature adjustment potentiometer. Turning the potentiometer clockwise increases
the value, counterclockwise - reduces.
11
The temperature control selector. Close 1-2 to use analog control connector (EXT), 2-3 to
use potentiometer (INT).