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Data Sheet
Miniature Temperature Controller MTD415T

Features

·

Small, safe and very high accuracy complete single-module controller

·

High speed, ultra stable digital PID Loop

·

Up to ± 1.5 A TEC current

·

Very low output current noise

·

Very small footprint (21.0 x 12.4 mm)

·

Circuit Height 3.1 mm

·

Supports 10 k

W

 thermistor temperature sensor

·

Single power supply operation 

Applications

·

Active cooling and temperature stabilization for a wide range of laser modules and diodes

·

WDM, DWDM Laser-Diode Temperature Control

·

EDFA Optical Amplifiers

·

Temperature stabilization of photo detectors and photodiodes

·

ATE

Short Description and Typical Application Diagram

The  MTD415T  is  a  compact  and  highly  integrated  temperature  controller  optimized  for  use  in
high performance thermoelectric temperature control applications.

The on-chip power  stage  and  the  thermal  control  loop  circuitry  minimize  external  components
while maintaining high efficiency.

The output current is directly controlled to eliminate current surges. An adjustable TEC current
limit provides the highest level of TEC protection.

The MTD415T is operated from a single power supply and provides a bipolar ±1.5 A output by
connecting  the  TEC  to  the  output  of  a  bipolar  power  stage.  True  bipolar  operation  ensures
temperature control without “dead zones” or other nonlinearities at low TEC current values.

The digital  control  interface  allows  quick  access  to  all  system  parameters  as  well  as  to  digital
measurement data, this way enabling a simple integration into different systems.

MTD415T Data Sheet Rev. 1.0

1

Summary of Contents for MTD415T

Page 1: ...ghly integrated temperature controller optimized for use in high performance thermoelectric temperature control applications The on chip power stage and the thermal control loop circuitry minimize ext...

Page 2: ...Revision History Revision Changes with respect to previous revision 1 0 Initial Release 2 MTD415T Data Sheet Rev 1 0 MTD415T...

Page 3: ...Typical Application 6 12 Programmers Reference 12 6 1 Nomenclature 12 6 2 Command Description 12 6 2 1 General Commands 13 6 2 2 TEC Commands 14 6 2 3 Temperature 15 6 2 4 Control Loop 17 6 2 5 Save S...

Page 4: ...rence Output Voltage for Thermistor Temperature Sensor Connect this reference voltage output 1 8 V to one end of the 10 kW thermistor 7 TEMP Thermistor Temperature Sensor Input Connect this pin to the...

Page 5: ...Asynchronous Data Input Connect this pin to the TX pin of your application 14 GND Supply Voltage Ground Connect the power supply ground connections to GND 15 TEC TEC Element negative connection Conne...

Page 6: ...ure 40 C to 70 C 1 All voltages with respect to network ground terminal Notes 1 Above specifications are given for the free air operating temperature range unless otherwise noted 2 Stresses beyond tho...

Page 7: ...cient 20 mK C Programming Interface Type UART Voltage Level 3 3 V Logic Level input 5 V tolerant Data Rate 115 200 bps 8 Data Bits 1 Stop Bit General Data Safety Features TEC Current Limit Sensor Faul...

Page 8: ...esistance the maximum output current drops due to compliance voltage limitation 3 The maximum output current at lower than 2 66 W load resistance colored range depends on environmental conditions Note...

Page 9: ...parator controls then the current of the thermoelectric cooler in order to maintain the temperature of the object constant Ideally the temperature settling is carried out in the shortest times with mi...

Page 10: ...TEC current limit might be helpful for control loop optimization in case of low thermal loads and lowers the dissipated by the MTD415T power Micro controller The functions of the microcontroller are...

Page 11: ...2016 Thorlabs GmbH 5 Typical Application 11 MTD415T Data Sheet Rev 1 0 5 Typical Application...

Page 12: ...ion Response Example u Reads the UUID Universal Unique Identifier of the MTD415T 045F778655FDE5118ED499C9B4521485 Command Explanation Response Example E Reads the Error Register Responses see section...

Page 13: ...gramming Lx Sets the TEC current limit to x Value range x 200 to 2000 mA Reading L Reads the TEC current limit x LF mA A Reads the actual TEC current x LF mA x 0 Heating x 0 Cooling U Reads the actual...

Page 14: ...e Programming Wx Sets the set temperature window to x Value range x 1 to 32768 mK Reading W Reads the temperature window x LF mK Command Explanation Response Example Programming dx Sets the delay time...

Page 15: ...critical period to x Value range x 100 to 100000 msec Reading O Reads the critical period x LF msec PID Settings Command Explanation Response Example Programming Cx Sets the cycling time to x Value r...

Page 16: ...ue range x 0 to 100000 mA K sec Reading I Reads the I Share x LF mA K sec Command Explanation Response Example Programming Dx Sets the D Share to x Value range x 0 to 100000 mA s K Reading D Reads the...

Page 17: ...ile memory 6 2 6 Factory Default Settings Parameter Explanation Factory Default L TEC current limit 1000 mA T Temperature set value 25 C W Temperature window 1000 mK d Temperature window delay 10 sec...

Page 18: ...Latch Up TEC current at limit without temperature improvement 3 Cycling time too small 4 No Sensor detected 5 No TEC detected connection open 6 TEC mispoled 7 not used 8 not used 9 not used 10 not use...

Page 19: ...ired error at the Status output pin Attention Masking an error may lead to damage of the MTD415T For example if bit 1 is masked exceeding the internal temperature will not be reflected on the status p...

Page 20: ...s heat dissipation The D share differential share or the gain at high frequencies allows the system to quickly react to temperature changes without generating oscillation of the temperature around th...

Page 21: ...he critical oscillation period O5580 5 The firmware calculates the parameters of the digital PID loop and applies them instantly The calculated parameters can be read out using the following commands...

Page 22: ...rlabs Compatible Android apps are QR Barcode Scanner QRbot by TeaCapps This scanner allows to share the scanned code directly by email https play google com store apps details id net qrbot hl de QR Dr...

Page 23: ...2016 Thorlabs GmbH 9 Drawing 23 MTD415T Data Sheet Rev 1 0 9 Drawing...

Page 24: ...l AC Alternating Current DC Direct Current ESD Electrostatic discharges GND Ground GUI Graphic User Interface I C Inter Integrated Circuit C Micro Controller NTC Negative Temperature Coefficient therm...

Page 25: ...ts the hard and or software determined by Thorlabs GmbH for this unit to operate fault free provided that they are handled according to our requirements However Thorlabs GmbH does not warrant a fault...

Page 26: ...he purchase of this product In no event shall any liability exceed the purchase price of the product Please note that the content of this document is neither part of any previous or existing agreement...

Page 27: ...of life take back service does not refer to other Thorlabs GmbH products such as pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards components mecha...

Page 28: ...Scandinavia Thorlabs Sweden AB Bergfotsgatan 7 431 35 M lndal Sweden Tel 46 31 733 30 00 Fax 46 31 703 40 45 www thorlabs com Email scandinavia thorlabs com France Thorlabs SAS 109 rue des C tes 7860...

Page 29: ......

Page 30: ...www thorlabs com...

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