MAIMAN ELECTRONICS SF8025-TO56B Datasheet And User Manual
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MAIMAN ELECTRONICS SF8025-TO56B Datasheet And User Manual

Laser diode driver
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Summary of Contents for MAIMAN ELECTRONICS SF8025-TO56B

  • Page 2 SF8025-TO56B SF8075-TO56B SF8150-TO56B SF8300-TO56B Laser Diode Driver 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...

  • Page 3: Table Of Contents

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 Table of content Laser diode driver features ......................4 Applications ............................ 4 Controls ............................4 Description ............................. 4 Package set ............................. 4 Overall dimensions and weight ....................... 4 Versions ............................5 Absolute maximum ratings ......................5 Recommended operating conditions ....................

  • Page 4: Laser Diode Driver Features

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 1. Laser diode driver features 2. Applications   Constant current mode Supplying laser diodes  Low current ripple ≤ 10uA 3. Controls  Current stability 0.1%   No need to adjust voltage Potentiometers on the board ...

  • Page 5: Versions

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 7. Versions Device LDD MAX current, mA SF8025-TO56B SF8075-TO56B SF8150-TO56B 1500 SF8300-TO56B 3000 8. Absolute maximum ratings UNIT Vin+ to Vin- -0.3 °C Operating temperature Analogue control pins to GND -0.3 RS-232 RXD to GND RS-232 TXD to GND -13.2...

  • Page 6: Electrical Characteristics

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 11. 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 12. Typical Performance Characteristics 50mA/div 1ms/div Fig. 1 – Typical start up sequence SF8025 Fig. 2 – Typical stop sequence SF8025 150mA/div 1ms/div Fig. 3 – Typical start up sequence SF8075 Fig. 4 – Typical stop sequence SF8075...
  • Page 8 Maiman Electronics SF8025, SF8075, SF8150, SF8300 600mA/div 1ms/div Fig. 7 – Typical start up sequence SF8300 Fig. 8 – Typical stop sequence SF8300...

  • Page 9: Functional Scheme

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 13. Functional scheme Analogue interface...

  • Page 10: Pin And Terminal Functions

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 14. 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 UART, RS-232 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 Analogue control connector Wurth WR-MM 6901 5700 20 72 or TE Connectivity 2-215083-0 Name Description Laser Driver Enable HIGH = operates, LOW = stop. Internally pulled down. Laser Driver Overcurrent HIGH = fault, LOW = normal operation.

  • Page 13: Analogue Control Description

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 15. Analogue control description 15.1. Laser Driver Enable The "Enable" contact is logic inputs. Apply high level to «Laser Driver Enable» pin to initiate soft-start sequence of laser diode driver. Apply low level to «Laser Driver Enable» pin to stop the driver.

  • Page 14: Current Setting Variants

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 16. Current setting variants Parameter can be set in three ways: using potentiometer, analog control connector or digital commands. Signal source Digital state Board jumper state Potentiometer External (default at power up) Analog control connector...
  • Page 15 Maiman Electronics SF8025, SF8075, SF8150, SF8300 17.1. LD pinout type switch It is possible to connect to the device laser diodes with different pinouts. Each pinout requires its own special board that connects to the 8 in LD pinout type switch board connector ( fig.
  • Page 16 Maiman Electronics SF8025, SF8075, SF8150, SF8300 17.4. Change the current protection threshold of the driver The current protection threshold level sets with DRV OC potentiometer. The set level can be seen in the software or requested by a digital command. Set the current protection threshold to the required level before turn on the laser diode current.

  • Page 17: Cooling

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 18. Cooling The board does not require active cooling. Aluminum mount is designed to remove heat. 19. Internal protections The device provides several security features to ensure the safety of the laser module. The jumper shunts the outputs of driver, to protect the laser diode from static discharges while installing.

  • Page 18: Software

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 20. 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. 21. Digital control description When the input voltage applied, the TEC is always in analogue parameters set, external "...
  • 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 21.2. MODBUS protocol description Default serial port settings: Baud rate Data bits Stop bits Parity Flow control 115200 none none The driver has RS485 interface and can operate via MODBUS protocol. Data exchange between the source and the computer is carried out only at the initiative of the computer.
  • Page 21 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Single write query (Code = 0x06): Byte Address Code Register Hi Register Lo Value Hi Value Lo CRC Lo CRC Hi Single write answer (Code = 0x06): Byte Address Code Register Hi Register Lo...
  • Page 22 Maiman Electronics SF8025, SF8075, SF8150, SF8300 21.3. Available parameters and its description HEX-number of parameters Action UART, RS-232 RS-485 Value 0100 0006 Frequency Minimum 0101 0020 (0.1 Hz) Maximum 0102 0021 Value 0200 0007 Duration Minimum 0201 0022 (0.1 ms)
  • Page 23 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Deny ext. 4000h Interlock State of the 0700 0004 device Allow ext. 8000h Interlock 1 – Device is powered on 0 bit (always = 1) 0 – Stopped; 1 – Started Current set: State of the 0 –...
  • Page 24 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Examples (UART, RS-232) 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 25 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.

  • Page 26: Digital Control Description (Extended)

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 22. 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. The description of the UART protocol extension command...
  • Page 27 Maiman Electronics SF8025, SF8075, SF8150, SF8300 The description of the MODBUS protocol extension command HEX-number of parameters Action UART, RS-485 RS-232 Baud - rate 0 – 2400 1 – 9600 Information 2 – 10417 about the 3-5 bits 0705 0081 3 –...
  • Page 28 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Text-plain mode (UART, RS-232) 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 29 Maiman Electronics SF8025, SF8075, SF8150, SF8300 Binary mode (UART, RS-232) 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.

  • Page 30: Mechanical Dimensions

    Maiman Electronics SF8025, SF8075, SF8150, SF8300 23. 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. 24. Warranty In compliance with the provisions of Conditions limited warranty the Buyer has the right to guarantee during the one year period.

This manual is also suitable for:

Sf8075-to56bSf8150-to56bSf8300-to56b

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