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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: 500mA

? Maximum Output Voltage: VVPS ? 1V

? High Absolute Accuracy: <0.1

? High Stability: <±100ppm/°C

? Maximum Full Power Bandwidth: 1MHz

? Programmable Current Limit

DESCRIPTION

The TECLD500MA203D 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.