The ILX Lightwave LDT-5910C is a high-performance thermoelectric temperature controller for precise thermal management of laser diodes and optoelectronic components in research, development, and production environments. It delivers exceptional stability—±0.001°C over one hour and ±0.002°C over 24 hours—with absolute accuracy of ±0.2°C and 0.01°C setpoint resolution across a -100°C to +200°C range. Four control modes (Constant Temperature, Constant Sensor, Constant Current, and Resistive Heater) accommodate diverse application requirements. The instrument features a fully programmable PID loop with twelve preset configurations, manual adjustment capability, and auto-tuning mode. Its linear bipolar TE output delivers -4.00 to +4.00 A across -8 to +8 V with maximum power of 32 W, current limit accuracy of 50 mA, and noise under 1 mA rms. The LDT-5910C accepts thermistors, RTDs, and current or voltage IC sensors (e.g., AD590, LM335) with auto-sensing thermistor current mode and linearization support for standard 10 kΩ devices. GPIB/IEEE 488.1 and USB 2.0 interfaces enable remote operation; LabVIEW drivers are available. Plug-and-play compatibility with ILX Lightwave laser diode mounts provides automatic configuration of TE current limits and sensor parameters. The unit replaces the obsolete LDT-5910B and A series and maintains backward compatibility with LDT-5910B remote commands. Variable-speed external fan control optimizes thermal management. Normally open and normally closed output interlocks support safety-critical configurations.
## Technical Specifications
• Temperature Control Modes: Constant Temperature, Constant Sensor, Constant Current, Resistive Heater Mode
• Temperature Stability: ±0.001°C (1-hour), ±0.002°C (24-hour)
• Temperature Range: -100°C to +200°C
• Absolute Accuracy: ±0.2°C (with calibration)
• Setpoint Resolution: 0.01°C
• TE Output: Linear bipolar current source, -4.00 to +4.00 A, -8 to +8 V, 32 W maximum
• Current Limit Accuracy: 50 mA
• Current Noise and Ripple: <1 mA rms
• Sensor Compatibility: Thermistor, RTD, Current IC (AD590), Voltage IC (LM335)
• Thermistor Linearization: -30°C to 85°C at 100 µA
• Power Supply: 120 VAC
• Interfaces: GPIB/IEEE 488.1, USB 2.0
• Display: 7-segment LED with integrated dot matrix (TE current, sensor resistance, temperature, setpoint, errors)
## Key Features
• Twelve-preset PID configurations including six original LDT-5910B values and six optimized for ILX Lightwave mounts
• Auto-tuning mode for optimal PID calculation
• Auto-sensing thermistor current mode simplifies sensor configuration
• LabVIEW driver support for automated control workflows
• Variable-speed fan control for external thermal management
• Normally open and normally closed output interlocks for system safety
## Typical Applications
• Laser diode temperature stabilization in spectroscopy and optical communications
• Optoelectronic component characterization and burn-in testing
• Research and production environments requiring sub-millidegree stability
## Compatibility & Integration
• Direct compatibility with ILX Lightwave precision laser diode mounts
• Automatic mount detection and preset configuration
• Full backward compatibility with LDT-5910B remote commands
• Replaces LDT-5910B and A series controllers
