CWD-01-V2-D

CWD-01-V2-D is a constant current CW laser driver module designed for driving diode lasers with up to 2A output current.
It features high efficiency (≥90%), ultra-low current noise in the 0.1Hz–10Hz band, and high stability of 100ppm/°C,
making it suitable for demanding applications such as DPSSL, EDFA, fiber lasers and direct diode lasers.
The driver is packaged in a compact 6-sided metal DIP enclosure, which provides excellent EMI shielding and easy PCB mounting.

Main Features

• Constant current output up to 2A with soft-start
• High efficiency: ≥90%
• Very low output current noise (3.61µA_p-p @ 0.1Hz–10Hz)
• High stability: 100ppm/°C
• Wide supply voltage range: 3.3V to 5.5V
• Zero EMI metal enclosure, compact DIP-style package
• Integrated over-current and over-temperature protection
• Soft start and fast shutdown for laser protection

Control & Monitor Functions

• LIS pin: 0–2.5V control signal sets laser current from 0–2A linearly
• LIO pin: 0–2.5V analog monitor output proportional to the actual laser current
• 2.5VR pin: low-noise 2.5V reference (up to 3mA) for setting current or for ADC/DAC reference
• LDGD / LIGD: digital and analog “laser good” indication pins to show loop and diode status
• SDN pin: logic-level shutdown control input

Typical Applications

• DPSSL modules and solid-state laser pumping
• EDFA and fiber laser driver stages
• Direct diode laser sources
• Laboratory, instrumentation and OEM laser systems

For more detailed electrical characteristics, pin descriptions and application circuits, please refer to the


DATASHEET

.