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SF8025-T
SF8075-T
SF8150-T
SF8300-T
Laser Diode Driver with TEC Controller for
Butterfly LD Type 2 Telecom
Datasheet & User Manual
Before powering on your driver, read this manual thoroughly.
If you have any doubt or suggestion, please do not hesitate to contact us!
Maiman Electronics
e-mail: info@maimanelectronics.com
web site: www.maimanelectronics.com
v6.2.0 ‒ 2022
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Related Manuals for MAIMAN ELECTRONICS SF8025-T
Summary of Contents for MAIMAN ELECTRONICS SF8025-T
- Page 1 SF8025-T SF8075-T SF8150-T SF8300-T Laser Diode Driver with TEC Controller for Butterfly LD Type 2 Telecom Datasheet & User Manual Before powering on your driver, read this manual thoroughly. If you have any doubt or suggestion, please do not hesitate to contact us! Maiman Electronics e-mail: info@maimanelectronics.com...
- Page 2 v3.0.2: Added paragraphs «Overall dimensions and weight» and «Functional scheme». Paragraph «How to get started» is supplemented. v3.0.3: Added paragraph «Troubleshooting guide». Paragraph «How to get started» is supplemented. v3.0.4: Paragraph «Warranty», error-triggered fall-time values (Paragraph «Electrical characteristics»), and examples of digital commands was added. v6.0.0: Major update with new PID.
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Page 3: Table Of Contents
Maiman Electronics SF8025, SF8075, SF8150, SF8300 Table of content Table of content ............................2 Laser diode driver features ........................3 Applications ............................3 TEC controller features ........................3 Controls ..............................3 Description ............................3 Package set ............................3 Overall dimensions and weight ......................3 Versions ............................... -
Page 4: Laser Diode Driver Features
Maiman Electronics SF8025, SF8075, SF8150, SF8300 1. Laser diode driver features 3. TEC controller features Constant current mode Low current ripple ≤ Low current ripple ≤ 10uA Full PID controller with the ability to set ... -
Page 5: Versions
Maiman Electronics SF8025, SF8075, SF8150, SF8300 8. Versions Device LDD MAX current, mA LD mount LD case SF8025-14 Soldering 14-pin Type 2 SF8025-ZIF14 Plug-in connector 14-pin Type 2 SF8075-14 Soldering 14-pin Type 2 SF8075-ZIF14 Plug-in connector 14-pin Type 2 SF8150-14... -
Page 6: Electrical Characteristics
Maiman Electronics SF8025, SF8075, SF8150, SF8300 12. Electrical characteristics PARAMETER TEST CONDITIONS UNIT OUTPUT LDD Output voltage Output current SF8025 SF8075 SF8150 1500 SF8300 3000 Current ripple Pulse rate Set by RS-232 or UART Pulse duration Set by RS-232 or UART... -
Page 7: Typical Performance Characteristics
Maiman Electronics SF8025, SF8075, SF8150, SF8300 AUX SUPPLY 2.5V accuracy 2.5V output current INTERNAL MEASURMENTS Internal measurements accuracy LDD current monitor pin voltage vs. SF8025 mA/V output current SF8075 SF8150 SF8300 1200 External sensor temperature NTC 10k °C INPUT Vin quiescent current Operating current 13. - Page 8 Maiman Electronics SF8025, SF8075, SF8150, SF8300 300mA/div 500us/div Fig. 5 – Typical start up sequence SF8150 Fig. 6 – Typical stop sequence SF8150 600mA/div 500us/div Fig. 7 – Typical start up sequence SF8300 Fig. 8 – Typical stop sequence SF8300...
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Page 9: Functional Scheme
Maiman Electronics SF8025, SF8075, SF8150, SF8300 14. Functional scheme Analogue interface... -
Page 10: Pin And Terminal Functions
Maiman Electronics SF8025, SF8075, SF8150, SF8300 15. Pin and terminal functions Please, note polarity! Never ground any lead of the output, this may cause permanent damage to the laser diode and the driver! Never use any grounded probes (e.g. from the oscilloscope) at the output! Control pins are not isolated! Fig. - Page 11 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Digital control connector Wurth WR-MM 690157000872 or TE Connectivity 215083-8 Description UART RXD RS-232 RXD UART ТXD RS-232 TXD Connected to Vin+ Interlock (duplicates pin 15 of analogue control connector) Crowbar status (duplicates pin 5 of...
- Page 12 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Laser diode pinout № Description № Description Thermistor Thermistor LD anode (+) LD cathode (-) PD anode (+) LD anode (+) PD cathode (-) TEC anode (+) TEC cathode (-)
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Page 13: Analogue Control Description
Maiman Electronics SF8025, SF8075, SF8150, SF8300 16. Analogue control description 16.1. Laser Driver Enable / TEC Enable The "Enable" contacts are logic inputs. Apply high level to «TEC Enable» pin to start temperature stabilization. Apply low level to «TEC Enable» pin to stop temperature stabilization. -
Page 14: Current / Temperature Setting Variants
Maiman Electronics SF8025, SF8075, SF8150, SF8300 16.6. TEC temperature set The «TEC temperature set» pin is an analog input. The «TEC temperature set» is intended for setting the desired temperature of laser module. Apply voltage to the «TEC temperature set» with respect to GND to set the desired temperature. -
Page 15: How To Get Started
Maiman Electronics SF8025, SF8075, SF8150, SF8300 18. How to get started Unpack the device. The new device is configured with the following values: Parameter Value Peltier module current limit (set by digital) Temperature control (switch TEMP) TEC temperature set (potentiometer TEMP) kOhm °C) -
Page 16: Pid Coefficients
Maiman Electronics SF8025, SF8075, SF8150, SF8300 If it is necessary to increase the limitation level, turn the potentiometer DRV OC clockwise for a few turns. Turn on the driver. Set the current equal to the desired current protection threshold with the potentiometer CURRENT. -
Page 17: Cooling
Maiman Electronics SF8025, SF8075, SF8150, SF8300 Larger proportional gain result is larger changes in response to the error, and thus affects the speed at which the controller can respond to changes in the system. While a high proportional gain can cause a circuit to respond swiftly, too high a value can cause oscillations. Too low a value and the circuit cannot efficiently respond to changes in the system. -
Page 18: Software
Maiman Electronics SF8025, SF8075, SF8150, SF8300 22. Software We offer own software to control driver. You can find it on maimanelectronics.com in the downloads section of the product page. Or contact us at info@maimanelectronics.com. 23. Digital control description When the input voltage applied the driver is always in analogue parameters set, external enable and "... - Page 19 Maiman Electronics SF8025, SF8075, SF8150, SF8300 The format of the response: Number of Value Comment byte K (4Bh) Response prefix Number of the parameter Hex-number of the requested parameter ‘space’ symbol (20h) 7-10 Returned value of the parameter Hex-value of the parameter ‘return carriage’...
- Page 20 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Current set calibration Value 030E (0.01%) Voltage (0.1 V) Measured value 0407 Start (Enable) 0008h Stop (Disable) 0010h Internal current set 0020h External current set 0040h External Enable 0200h State of the driver 0700...
- Page 21 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Lower limit 0A05 External NTC Upper limit 0A06 sensor temperature Measured value 0AE4 (0.1°C) (1 = 1 K) 0B0E 25/100 Value 0A10 Maximum 0A11 Minimum 0A12 TEC temperature (0.01°C) Maximum limit 0A13 Minimum limit...
- Page 22 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Examples 1) For the current value parameter, 0300: To request value, send the following command: "J0300" in text or "4a 30 33 30 30 0d" in hex. Answer will be: "4b 30 33 30 30 20 30 42 42 38 0d" in hex, "K0300 0BB8" in text, 0BB8h > 3000 in dec > 300.0 mA.
- Page 23 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Fig. 10 – Screenshot from the Termite terminal with commands and answers The maximum duration depends on the set value of the frequency. When you change frequency, a new value of the maximum duration is compute automatically. The duration of pulse cannot be less than 2 ms and more than period of frequency minus 2 ms.
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Page 24: Digital Control Description (Extended)
Maiman Electronics SF8025, SF8075, SF8150, SF8300 24. Digital control description (extended) WARNING! Extended protocol recommend for advanced users only. In addition, it might be use for integration of the device with other devices. Use the parameter number 0704h for configure the extended protocol. In extended... - Page 25 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Text-plain mode All commands in text-plain mode should be in ASCII. WARNING! If you enable the checksum it will change format of commands. After <CR> symbol you will be write 2 bytes of checksum and last byte will be <LF> (0Ah – “new line” symbol).
- Page 26 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Binary mode The binary mode has a significant difference. In this mode, data are exchanged in binary form. Length of any type of command is 8 bytes! In this mode, next options are always enable and you cannot disable it: return a new value of parameter for P-type commands and checksum.
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Page 27: Troubleshooting Guide
Maiman Electronics SF8025, SF8075, SF8150, SF8300 25. Troubleshooting guide Problem Potential causes Solution The driver and the temperature controller can only be turned on with shorted Interlock. For more details see paragraph 18.1. The device is in the locked state The device will not work if thermistor is unplugged. -
Page 28: Mechanical Dimensions
Maiman Electronics SF8025, SF8075, SF8150, SF8300 26. Mechanical dimensions All dimensions are in millimeters. You can download the 3D-model of the driver on maimanelectronics.com in the downloads section of the product page. 26.1. SF8xxx-14 model for soldering 14-pin Butterfly 26.2. SF8xxx-ZIF14 model with Azimuth connectors for 14-pin Butterfly... -
Page 29: Warranty
Maiman Electronics SF8025, SF8075, SF8150, SF8300 27. Warranty In compliance with the provisions of Conditions limited warranty the Buyer has the right to guarantee during the one year period. The warranty period comes into effect from the shipping date. The warranty only concerns products that are applied according requirements and for the applications specified in the manual for the product.
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