HY6340 Datasheet | Hytek

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 mon anode isolated laser diodes Thru-hole or surface-mount packaging Micro-heaters Figure 1 Figure 2 - 400 Hot Springs Road, Carson City NV 89706 - (775) 883-0820 - Fax (775) 883-0827 - .hytek. 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 1000m A for input voltage VEE to (VEE + 3V) (10 to 1500m A with forced air cooling) Power supply ground FB<MOD increases IOUT, FB>MOD 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 < 100m A VEE (Alarm condition; normally grounded) VEE (Alarm condition; normally grounded) Environmental conditions Operating Temperature Storage Temperature - 20°C to +100°C (case) - 65°C to +150°C (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...