Koheron DRV300 User manual

DRV300 User Guide
Connections
Terminal block
VCC: Supply input. Connect this pin to a 9V supply.
EN: Laser Enable pin. Apply a voltage between 2.2 V and 4.5 V to enable the laser current.
TRIM: Laser current trimming input with 2 kΩ input impedance, ± 2 V input voltage range and 10 Hz
bandwidth. Gain is 10 mA/V for the 200 mA version.
IMON: Laser current monitoring pin. The voltage at this pin is proportional to the laser current (5 V/A for
the 200 mA version).
LD+: Laser anode pin. Connect this pin to the laser anode.
GND: Ground. Connect this pin to the laser cathode.
Switch
EN: Enable / disable laser current.
ILIM: Set to ON/OFF for Low/High current limit.
G0 / G1: Set modulation gain as follows:
1 / 2
DRV300
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G0 G1 Modulation gain
OFF OFF High (x 1)
ON OFF Medium (x 1/5)
OFF ON Low (x 1/25)
LED
The LED lights up when the laser driver is enabled.
Mounting multiple DRV300 in parallel
To mount the laser drivers in parallel, tie LD+ pins together as follows:
2 / 2
DRV300
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