View HY6340_716246.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HY6340 Laser Diode Driver
Switchable Constant Current Laser Diode Driver
The HY6340 Laser Diode Driver is designed for applications requiring high constant current drive for the operation of laser diodes such as pump sources for EDFA's and diode pumped semiconductors. The HY6340 provides selectable drive current from zero to 1 ampere (1.5 amperes with forced air cooling). The HY5640 includes outputs for monitoring and control of over-current and laser diode over-temperature conditions. The HY6340 comes in a 22 pin dual in-line ceramic package. An aluminum heat spreader is included as a part of the package for heat sinking the device.
TEC Controllers
Features:

Laser Diode Drivers
Analog input, DC to 1MHz Adjustable modulation current to 1.5 amps Patented "backmatched" thermal management Enable pin for switching Overtemp and over-current alarms Common anode isolated laser diodes Thru-hole or surface-mount packaging
Micro-heaters
Figure 1
Figure 2
30 * 400 Hot Springs Road, Carson City NV 89706 * (775) 883-0820 * Fax (775) 883-0827 * www.hytek.com
HY6340 Laser Diode Driver Input Specifications
Power Supply Input (VEE): Pins 9,10, 11, 16 Drive Enable (EN): Pin 7 Modulation (MOD): Pin 21 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 -9 to -15V @ 1 amp max. (1.5 amp with forced air cooling) VEE (off, disable), Ground or Open (on, enable) 10 to 1000mA for input voltage VEE to (VEE + 3V) (10 to 1500mA with forced air cooling) Power supply ground FBMOD decreases IOUT VEE < FB < VEE + 5V with VEE < OTI+ < VEE + 5V with VEE < OTI+ < VEE + 5V Use to increase temperature hysteresis Use to increase temperature hysteresis
Output specifications
Laser Diode Current Drive (IOUT): Pins 12, 13, 14 Reference Output (VREF): 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) = VEE +5V at < 100mA VEE (Alarm condition; normally grounded) VEE (Alarm condition; normally grounded)
Environmental conditions
Operating Temperature Storage Temperature -20C to +100C (case) -65C to +150C (case)
Signal descriptions
VEE GND MOD Input power supply (-9 to -15 VDC). Ground return for VEE (input power supply) The modulation voltage programs the laser diode drive current, IOUT. When the input is at VEE the modulation current is zero. Maximum modulation current occurs when the voltage at MOD is +5.0 V with respect to the VEE input. The current is set by the voltage at the modulation input. The Reference voltage is a precision voltage reference with an output voltage of VEE + 5VDC. The Reference voltage 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. 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 VEE the laser current is disabled. The Output provides drive current to the laser diode (cathode/negative; connect anode to ground). This high input impedance, voltage feedback, input is used with a photodetector to control Output Current. Positive over-temperature alarm input. Negative over-temperature alarm input. Over-current alarm output. Alarm: VEE; No alarm: Ground Over-current input. OCI controls the set point for the over-current alarm detector. VEEVREF
EN
IOUT FB OTI+ OTI- OCA OCI OTA RH
400 Hot Springs Road, Carson City NV 89706 * (775) 883-0820 * Fax (775) 883-0827 * www.hytek.com * 31

▲Up To Search▲

Price & Availability of HY6340

	To Download HY6340 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .