Adjustable current laser diode driver 80-500mA w/TTL For Sale
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Adjustable current laser diode driver 80-500mA w/TTL:
$3.75
- Adjustable constant current (ACC) driver
- 20- 500mA output current range (adjusted by pot on theboard)
- 5-10V input
- TTL control (if required)
- Ideal for laser modules (for battery powered hosts thisdriver requires the diode to be electrically isolated if the diode if thediode is case+ve)
Compact, production quality board. This isa low drop out voltage linear current regulator. The Laser Diode +ve isconnected to Power +ve and Laser Diode –ve is controlled by the circuit. (Note:for case +ve diodes the case cannot be grounded.) The minimum input voltagedepends on the laser diode operating voltage and current setting, it is typicallyabout 0.5 – 1.5 V higher than the laser operating voltage. Lower voltages willnot allow the full current range and higher voltages will be dissipated by thedriver as heat. (Max.~10V) The current required by the driver is typically20-30mA higher than the output current. Stability is typically better than 3%.When the TTL +ve is not connected the output is a few mA, when it is poweredabove 2.5V the driver is enabled; it can be connected to power +ve forcontinuous operation. The TTL control can be used to switch the laser at ratesup to 10kHz. Board color (the printed solder-resist layer) may be green or reddepending on production batch.
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