◆Adjustable clipping current◆Power-saving protection, over-voltage protection◆RMS noise current is low noise at 35μA at 100kHz
◆ Bandwidth up to 600 kHz at a constant current ◆ ACC (constant current) or APC (constant power) mode ◆ Equipped with safety features to protect the laser (slow start, delay circuit) The LDxCHA series is a low-noise LD driver that supports a maximum supply current of 15A and a maximum supply voltage of 3V or 28V (when set to high voltage). The new circuitry allows for fine-tuning of the current limit and current set point even in the absence of a signal from the laser. This enables users to operate safely without worrying about power settings and prevents overdriving. The LDxCHA series is compact, and the base hole pattern allows for direct mounting on engineering tables or within systems. Two trim pots are set for current limit and set point, and simple wiring is facilitated by five spring-loaded terminal blocks. The built-in safety features stabilize operating conditions and enhance product robustness. The setting of the current limit value ensures that the output current will never be exceeded, and the slow start function prevents overdriving. It offers high reliability and long operating times.
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basic information
●LD15CHA Maximum internal power consumption (No Airflow): 60W at 25°C ambient Maximum internal power consumption (With Airflow): 85W at 25°C ambient Maximum output current: 15A Short-term stability, 1 hour: <200ppm in constant current mode RMS noise current: 35μA at 500mA output with 100kHz Noise current density: 100nA/Hz at 500mA output Leakage current: 0μA Temperature coefficient: 100ppm/°C ●Photodiode feedback Width: 500μA, set to 5mA or 100mA PD range via DIP switch Constant power mode output stability: 0.03% at 200μA photodiode ●External modulation Analog input range: -2 to +5V Half current, bandwidth -3dB in constant current mode: 390kHz with sine wave input Total current bandwidth -3dB: 600kHz with sine wave input Modulation depth at reverse current, bandwidth 90%: 280kHz in constant current mode Modulation depth at total current, bandwidth 90%: 400kHz in constant current mode
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■New products related to barcodes ■Laser diode related ■We accept orders for optical fiber connector processing. *We are currently accepting orders for communication to large diameter with short delivery times! ■Manufacturing of ultra-stabilized LD modules and light source devices ■Import and sales of various semiconductor lasers ■Import and sales of optical modulators and optical peripheral components ■Other import and sales of scientific and analytical instruments and parts
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