Digital High Voltage Constant Current 15A Laser Driver

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ALDD28V15A401 buy now buynow   Datasheet

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Digital display for parameter setting and monitoring
Wide input voltage range: 10V ~27V
Wide output voltage range: 0.1VVPS to 0.8VVPS (input voltage)
High current capability: 15A
High efficiency: ≥90% (IOUT=15A @ VLDA=20V&VVPS=27V)
Wide modulation bandwidth: DC ~10kHz
Compact size: 68.5×61×16.6 (mm)
Dual independent current set ports: LISH and LISL
Direct digital modulation control: PCN
Two control states: Operation, Standby and Shutdown
Low output current noise: < 12µAP-P@0.1Hz~10Hz
High current stability: < ±600µA@15A &‒20°C~80°C
Low output ripple voltage: < 6mV@700kHz
Fully shielded
100 % Lead (Pb)-free and RoHS compliant


This laser driver, ALDD28V15A401, is an electronic module that has all the valuable and important features that are often difficult to achieve simultaneously, such as: wide input and output voltage range, high output current capability, high efficiency, low output noise, wide modulation bandwidth, and small size.
The extremely low noise between DC ~ 10kHz and low DC current drift make it ideal for driving diode pumped single mode laser diodes to achieve mode-hop-free and narrow optical wavelength drift, thus, long coherent length. Because of the high efficiency, the laser driver generates a small amount of heat, thus, no heat sink is necessary for normal operation. The fully shielded case blocks all the incoming and outgoing EMIs (Electro-Magnet Interferences). Therefore, this laser will not interfere with other surrounding electronics, nor other electronics interfere with them.