CATEGORIES
LDTC Series 2.2 A Laser Driver & Thermal Control
- 2.2 A of TEC and 2.2 A of LD current
- Single supply operation LD: +5 to +12 V
- Single supply operation TC: +5 to +28 V
- Slow start laser diode protection
- Constant Current or Constant Power Mode
- Adjustable laser diode current limit
- Separate heat & cool current limits
- Remote TTL Shutdown / Interlock
- Failsafe Setpoint default for D/A
- Small package size
1 - 5 each
$524.00
-
1 - 5 each$524.00
-
6 - 14 each
$524.00$487.00 -
15 - 24 each
$524.00$472.00 -
25+ each
$524.00$445.00
Contact Factory for High Volume Pricing
Price adjustments will be reflected in the cart. For availability information please contact us.
All prices are in US dollars. Prices do not include shipping charges. All prices will be confirmed at time of shipment and may include pass-through tariff estimates.
If ordering from or shipping to Australia, China, or Hong Kong, please contact your distributor.
The LDTC2/2 includes both a Laser Diode Driver and a Temperature Controller that each drive up to 2.2 A. The LDTC 2/2 E includes the chassis enclosure. The LDTC 2/2 O includes only the open frame electronics. For 500 mA laser diode current, the LDTC0520 is available. For 1 A laser diode current, the LDTC1020 is available. Integrated controls make this a plug-and-play module. Add only a power supply, laser diode, thermoelectric and sensor, and heatsinking. All cable sets are included.
The temperature controller is compatible with thermistors or linear temperature sensors such as the LM335 or AD590. Adjust temperature using onboard trimpot or a remote voltage input. This voltage input has added default protection for when a D/A remote setpoint is turned off, unplugged or goes down and it automatically sets the temperature to control near ambient. Default is 25°C for a 10 kΩ thermistor (1 V). Adjustable trimpots configure heat and cool limits.
The laser diode driver maintains precision laser diode current (Constant Current mode) or stable photodiode current (Constant Power mode) using electronics compatible with A/B Type lasers. The LDTC2/2 delays and slowly ramps the current for maximum protection. Onboard trimpots set current limit and setpoint. Alternately, you can switch to remote inputs for the laser driver current setpoint. Use either the onboard Enable/Disable switch or a remote input. An LED indicates status of the laser diode output current. Switches select Constant Current or Constant Power mode.
The LDMOUNT-5A, a 14-pin butterfly laser diode mount with integrated heat sinking, is available for simple connections between the LDTC and the laser.
Ideal for integrated laser driver or LED packages that include temperature control, often used in optofluidics, medical diagnostics equipment, remote sensing, analytical instrumentation, military and communications applications.
NOTE: Customization to 3 A laser diode output current using the WLD3343-3A is available.
Free, effective, and responsive technical support is available to simplify integration of Wavelength products into your OEM design. Standard product can be easily modified to meet your application requirements.
LASER DIODE DRIVER:
24 Hour Current Stability at ambient 25°C: 75 ppm
Supply Range: +5 to +12 V
Laser Diode Output Current: up to 2.2 A
Delay: 240 msec.
Current Ramp: 10 msec
Rise time: 460 nsec
Fall time: 320 nsec
TTL Compatible RESET / ENABLE input is active LO.
Bandwidth: 1.6 MHz – Constant Current sine wave
Maximum Power Dissipation 9 W
Heatspreader Temperature Rise: 30°C / W without external heatsinking
TEMPERATURE CONTROLLER:
Supply Range: +5 to +30 V
Temperature Control Output Current: up to ±2.2 A
Temperature Stability: 0.002°C (10 kΩ thermistor at 25°C) over one hour
Stability across ambient: 0.005°C (10 kΩ thermistor at 25°C) over an hour
Setpoint vs. Actual Temperature Accuracy: less than 2 mV typical
Features:
-Heat and Cool Current Limits
-Default Setpoint: If external setpoint drops below 0.3 V, an onboard default circuit sets it to 1 V. [25°C with a 10 kΩ thermistor]
-PI controller
-Compatible with multiple sensors
-Adjustable sensor bias current optimizes sensor feedback voltage
-Can operate with unipolar current for Resistive Heaters
Maximum Power Dissipation: 9 W
Heatspreader Temperature Rise: 30°C / W without external heatsinking
Chassis Mount Module size: 69 x 122 x 33 mm
Top View of LDTC2/2 O & uncovered view of LDTC2/2 E
SOFTWARE
APPLICATION & TECH NOTES
- AN-LD11: How to Add Complex Technology -- Build or Buy?
- AN-LD13: Laser Diode Driver Basics
- AN-LD16: Grounding with Special Laser Diode Configurations
- AN-LD17: Photodiode Basics - Selection and Operation
- AN-LD18: Optimizing Laser Diode Control
- AN-LDTC01: The Principle of the Safe Operating Area
- AN-LDTC02: Environmental Regulation Compliance Guide
- AN-LDTC03: Power Supply Basics
- AN-LDTC04: Test Load Basics
- AN-LDTC05: Bandwidth Basics
- AN-LDTC06: ESD Basics
- AN-LDTC07: Tips on Improving Manufacturability
- AN-LDTC08: Product Selection & Comparison
- AN-TC08: Mounting and Soldering Nickel-Lead Thermistors
- AN-TC09: Specifying Thermoelectric Coolers
- AN-TC10: Temperature Controller Basics
- AN-TC11: Thermistor Basics
- AN-TC14: Calibration Coefficients and Thermistor Selection
- AN-TC15: Compliance Voltage & Temperature Control Design with Multiple Thermoelectric Coolers
- CS-LDTC05: Laser Diodes in Optofluidics and Microfluidics
- TN-TC01: Optimizing Thermoelectric Temperature Control Systems
- TN-TC02: How is Temperature Stability Measured?
ACCESSORIES
| SKU | DESCRIPTION | PRICE | IMAGE |
| MULTI-HTSK | MULTI-HTSK Multi-Product Heat Sink |
$60.00 You save (%) |
 |
| THERM-PST | Thermal Paste |
$19.00 You save (%) |
 |
| TCS10K5 | TCS10K5 10 kΩ Thermistor (0.5x3mm) Sold in 5-packs |
$99.00 You save (%) |
 |
| TCS610 | TCS610 10 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
 |
| TCS620 | TCS620 20 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
| TCS650 | TCS650 50 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
| TCS651 | TCS651 100 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
| LDMOUNT-5A | LDMOUNT 5A Butterfly Laser Diode Mount |
$599.00 You save (%) |
 |
RELATED PARTS
| SKU | DESCRIPTION | PRICE | IMAGE |
| LDTC 2-2 O | LDTC Series 2.2 A Laser Driver & Thermal Control |
$446.00 You save (%) |
 |
| WLD3343 | WLD3343 2.2 A Laser Diode Driver | $99.00 |  |
| WTC3243 | WTC3243 2.2 A Temperature Controller | $99.00 |  |