Overview
Driver Design
Section titled “Driver Design”This driver is based on our well-known linear regulator for laser diodes in a new design with higher functionality.
The laser diode driver operates as an analog driver which is subordinate to a control unit. This structure permits a reliable laser current control in unison with an equally reliable temperature and interlock monitoring.
Key Operational Characteristics
Section titled “Key Operational Characteristics”Rapid Safety Response
Section titled “Rapid Safety Response”When safety conditions are triggered, the laser output will be disabled within microseconds if an overtemperature or interlock failure occurs.
Temperature Monitoring
Section titled “Temperature Monitoring”The temperature monitoring part measures the temperature with a small sized and easy-to-use NTC directly next to the laser diode.
With the additional plug-on TEC controller (Part# PD-01360), the temperature monitoring can be enhanced to a temperature control on the same board without other sensors or increasing the footprint.
Interlock Feature
Section titled “Interlock Feature”The interlock feature triggers a safety shutdown or can be used easily as a redundant shutdown system for external interlock systems.
Operating Mode Selection
Section titled “Operating Mode Selection”Depending on the final application, the driver can be started:
- By a separate start signal (e.g., key switch)
- Directly (automatic mode)
This is selectable by a simple switch which can also be executed by a simple shorting jumper with 2.54mm pitch.
Connection Terminals
Section titled “Connection Terminals”The revised connection terminals enhance the connecting of:
- The laser diode
- The supply voltage
- The remaining periphery