Adjustable current laser diode driver 80-500mA w/TTLSee original listing |
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Item condition:
New
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Ended:
Apr 20, 2012
15:56:34 PDT
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Shipping:
$2.00
Standard Shipping
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See details
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Item location:
Houston, Texas, United States
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Seller:
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| Condition: |
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is
... Read moreabout the condition
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Compact, production quality board. This is
a low drop out voltage linear current regulator. The Laser Diode +ve is
connected 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 voltage
depends on the laser diode operating voltage and current setting, it is typically
about 0.5 – 1.5 V higher than the laser operating voltage. Lower voltages will
not allow the full current range and higher voltages will be dissipated by the
driver as heat. (Max.~10V) The current required by the driver is typically
20-30mA 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 powered
above 2.5V the driver is enabled; it can be connected to power +ve for
continuous operation. The TTL control can be used to switch the laser at rates
up to 10kHz. Board color (the printed solder-resist layer) may be green or red
depending on production batch. |
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