Maiman Electronics
SF6100
4
7.
Recommended operating conditions
MIN
MAX
UNIT
Input voltage (V
in
)
12
55
V
Operating temperature
-10
40
°C
Analogue control pins to GND
0
5
V
RS-232 RXD to GND
-12
12
V
RS-232 TXD to GND
-12
12
V
UART RXD to GND
0
5
V
UART TXD to GND
0
5
V
8.
Power supply requirements
The driver requires a DC power supply with line regulation ± 1%. The power supply must be able to
cover the driver output power and losses. The power supply voltage must be at least 27% higher than
the voltage drop of your laser diode. Recommended power supply: Mean well SE-1000-48.
ATTENTION! Do not use any relay between power supply and driver. When using a relay, voltage surges
may occur and driver may fail.
9.
Electrical characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUTPUT
Output voltage (V
out
)
5
0.73*V
in
V
Output current (I
out
)
0
25
A
Current ripple
15
25
mA
Pulse rate (F)
QCW-mode
0.1
100
Hz
Pulse duration
Set by RS-232 or UART
2
1/F - 2
5000
ms
Set by analogue pin
0.5
1/F
Rise time (Soft-start time)
I
out
= 25A
130
150
250
us
I
out
= 12.5A
140
180
300
us
Fall-time (Stop time)
10
20
50
us
Error-triggered fall-time (Stop time)
0.7
7
us
Output capacitance
30.8
uF
INPUT
Vin quiescent current
V
in
= 48V, no AUX load
10
20
30
mA
Input capacitance
39.6
uF
CONTROLS
Enable
pin low threshold
1
V
Enable
pin high threshold
2.3
V
Interlock pin
threshold
1
V
Interlock pin
pull-up resistance
10
kΩ
Current set pin voltage vs. output
current
5
A/V
Current set step
Set by RS-232 or UART
0.01
A
Current set accuracy
1
8A < I
out
< 20A
+/- 5
%
20A < I
out
< 25A
+/- 1
%
Current set calibration
- 5
+ 5
%
1
See more at regulation characteristic (Figure 5).