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參數(shù)資料
| 型號： | HY6340 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Switchable Constant Current Laser Diode Driver |
| 中文描述： | 切換恒流激光二極管驅動器 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大小： | 196K |
| 代理商： | HY6340 |
400 Hot Springs Road, Carson City NV 89706 (775) 883-0820 Fax (775) 883-0827 www.hytek.com 31
HY6340
Laser Diode Driver
Input Specifications
Power Supply Input (V
EE
):
Pins 9,10, 11, 16
Drive Enable (EN):
Pin 7
Modulation (MOD):
Pin 21
–9 to –15V @ 1 amp max. (1.5 amp with forced air cooling)
V
EE
(off, disable), Ground or Open (on, enable)
10 to 1000mA for input voltage V
EE
to (V
EE
+ 3V)
(10 to 1500mA with forced air cooling)
Power supply ground
FB<MOD increases I
OUT
, FB>MOD decreases I
OUT
V
EE
< FB < V
EE
+ 5V
with V
EE
< OTI+ < V
EE
+ 5V
with V
EE
< OTI+ < V
EE
+ 5V
Ground (GND):
Pins 18, 19, 20
Feedback-Optical (FB):
Pin 22
Over-Temperature Alarm Input (OTI+):
Pin 1
Over-Temperature Alarm Input (OTI-):
Pin 5
Over-Current Alarm Input (OCI-):
Pin 6
Temperature Alarm Hysteresis:
Pin 4
Temperature Alarm Hysteresis:
Pin 3
Use to increase temperature hysteresis
Use to increase temperature hysteresis
Output specifications
Laser Diode Current Drive (I
OUT
):
Pins 12, 13, 14
Reference Output (V
REF
):
Pin 8
Over-Temperature Alarm Output (OTA):
Pin 2
Over-Current Alarm Output (OCA):
Pin 17
0 to 1 amp (1.5 amp with forced air cooling)
= V
EE
+5V at < 100mA
V
EE
(Alarm condition; normally grounded)
V
EE
(Alarm condition; normally grounded)
Environmental conditions
Operating Temperature
Storage Temperature
–20°C to +100°C (case)
–65°C to +150°C (case)
Signal descriptions
V
EE
Input power supply (–9 to –15 VDC).
GND
Ground return for V
EE
(input power supply)
MOD
The modulation voltage programs the laser diode drive current, I
OUT
. When the input is at V
EE
the modulation cur-
EE
in-
put. The current is set by the voltage at the modulation input.
V
REF
The Reference voltage is a precision voltage reference with an output voltage of V
EE
+ 5V
DC
. The Reference volt-
age supplies a voltage for the adjustment of the current. It can also be used to power a resistive bridge input to
the over-temperature alarm, and to provide an adjustable reference voltage to the current alarm input.
EN
The Enable pin is used to enable/disable the output. When the Enable pin is connected to ground, or left open,
the output is enabled, allowing current to flow to the laser diode. When this pin is connected to V
EE
the laser
current is disabled.
I
OUT
The Output provides drive current to the laser diode (cathode/negative; connect anode to ground).
FB
This high input impedance, voltage feedback, input is used with a photodetector to control Output Current.
OTI+
Positive over-temperature alarm input.
OTI–
Negative over-temperature alarm input.
OCA
Over-current alarm output. Alarm: V
EE
; No alarm: Ground
OCI
Over-current input. OCI controls the set point for the over-current alarm detector. V
EE
<V
OCI
< V
EE
+5V
OTA
Over-temperature alarm output. Alarm: V
EE
; No alarm: Ground
R
H
Resistor connected between pins 3 and 4 to vary the temperature detector hysteresis from 1 to 10%.
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