GENERAL FEATURES
 Combining TEC and Laser Controls in one Unit
 Configure and Read back All Analog Parameters
through a Digital Port
 Configurable One Input Setting and One Output
Monitoring Port for Analog Signals
 Controller Temperature Monitoring
 Compact Size and Simple Pin Out
 Complete Shielding
 100 % lead (Pb)-free and RoHS compliant

TEC CONTROL FEATURES
 Auto PID Compensation Network
 High Efficiency: ≥90%
 Maximum Output Current Range: ±3.5A
 Maximum Voltage Range: −VVPS ~ VVPS – 0.3V
 Temperature Stability: ±0.001°C
 Real Time Monitoring on TEC Current, Voltage &
Target Object Temperature

LASER CONTROL FEATURES
 Low Noise: 1.6μAP-P @ 0.1Hz ~ 10Hz
 Maximum Output Current w/o Heat Sink: 100mA
 Maximum Output Voltage: VVPS − 1V
 High Absolute Accuracy: <0.1%
 High Stability: <±100ppm/°C
 Maximum Full Power Bandwidth: 1MHz
 Programmable Current Limit

DESCRIPTION
The TECLD100MA203D combines a high efficiency TEC
controller and a low noise laser driver into one
compact module without sacrificing the performance of
each one. All the input analog parameters can be set,
and the output analog signals can be read, by a digital
port. Thus, the 2 pin digital port has saved numerous
dedicated analog port pins as found in many
conventional analog modules.
The TEC controller comes an auto PID compensation
network, it saves the effort to tune the network for
matching the thermal load, saves the cost and space for
implementing the analog compensation network, and
allows retuning the compensation network parameters
for matching a different new thermal load. These analog
parameters can be programmed through the digital port:
Set-point temperature range, Set-point temperature,
maximum cooling current, and maximum heating current.
One of these parameters can be chosen and set by the
analog input port, AI pin. These output parameters can
be monitored by through the digital port: actual target
object temperature, TEC current, TEC voltage, and TEC
loop status. One of them can be chosen to be monitored
directly through the analog output port, AO pin.
The laser controller features a linear mode low noise high
speed laser driver. To protect the laser diode, it comes
with a programmable current limit. Thus, in case the
laser current setting pin exceeds the maximum current
allowed by the laser diode, the current limit loop takes
over the control and cap the current within the safe limit.
These 2 analog input parameters can be set through the
digital port. One of them can be chosen to be set directly
through the analog port, AI pin. The actual laser’s
current and control loop status can be monitored by the
digital port. The laser current be chosen to be monitored
in real time through the analog output port, AO pin.
The controller has an control pin, it sets the controller to
these modes: Shutdown, Standby, On, and PID Auto
Tuning.