january 2015 docid026696 rev 2 1 / 6 for further information contact your local stmicroelectronics sales office www.st.com eval - l9958 l9958 evaluation board for high current (8.6a) dc and stepper motors data brief features ? wide supply voltage range (vbatt): 4 v 28 v ? current regulation threshold set by spi: 4 levels from 2.5 a to 8.6 a (typ.) ? device controlled and programmed via spi diagnostic functions accessible via spi: ? short circuit to battery ? short circuit to ground ? short circuit overload ? over temperature ? open lo ad ? on board 5v, 1.5a voltage regulator ? 2 leds for monitoring vbatt and en signal ? input signal connector compatible with the spc5 discovery+ boards ? possibility to connect the board to microcontroller boards by a simple adaptor or by wires ? test points to mo nitoring both input signals (spi, pwm, en) and outputs ? possibility to hardware setup en, di and dir by jumpers ? no heat - sink is required description the eval - l9958 is the simplest so lution to evaluate l9958 functionalities providing all the inputs and outputs capabilities necessary to drive dc or stepper motors and monitor diagnostic functions. l9958 is fully integrated motor driver for dc and stepper motors used in safety critical a pplications and under extreme environmental conditions . it can operate from 4 vmin to 28 vmax delivering to the load up to 8.6a. the current regulation threshold can be set by spi from 2.5a to 8.6a (typ.) in 4 steps.detailed failure diagnostics on each ch annel is provided via spi: short circuit to battery, short circuit to ground, short circuit overload, over temperature. open - load can be detected in on condition, for the widest application ranges. the eval - l9958 board is suitable for both beginners and ex pert users working in standalone mode connected with any control system or combined with all spc5 discovery+ boards though a computer graphic interface or though embedded application examples.the board is compatible with both 5 v and 3.3 v control systems table 1: device summary order codes reference eval - l9958 eval - l9958 evaluation board
contents eval - l9958 2 / 6 docid026696 rev 2 contents 1 system requirements, hw and sw resources .............................. 3 1.1 development tool chain ................................ ................................ ..... 3 1.2 evaluation software ................................ ................................ ........... 4 2 revision history ................................ ................................ .............. 5
eval - l9958 system requirements , hw and sw resources docid026696 rev 2 3 / 6 1 system requirements, hw and sw resources 1.1 development tool chain ? graphic user interface: labview ? software development environment (in connection with spc5 mcus) : spc5studio ? hardware set - up ? board stand alone figure 1: "eval - l9958 evaluation board" ? pc graphic user interface - spc560p - disp (dedicated firmware) - eval - l99 58 figure 2: "spc560p - disp (dedicated firmware) - eval - l9958" ? any spc56 discovery + application examples (within spc5 studio) + eval - l9958 figure 3: "spc56 discovery + application examples ( within spc5 studio) + eval - l9958" figure 1 : eval - l9958 evaluation board figure 2 : spc560p - disp (dedicated firmware) - eval - l9958
system requirements, hw and sw resources eval - l9958 4 / 6 docid026696 rev 2 figure 3 : spc56 discovery + application exampl es (within spc5 studio) + eval - l9958 1.2 evaluation software demonstration software is available on st web site for free download.
eval - l9958 revision history docid026696 rev 2 5 / 6 2 revision history table 2: revision history date revision changes 01 - aug - 2014 1 initial release. 07 - jan - 2015 2 updated figure in the cover page and figures in all documents..
eval - l9958 6 / 6 docid026696 rev 2 important notice C please read carefully stmicroelectronics nv and its subsidiaries (st) reserve the right to make changes, corrections, enhancements, modifications , and improvements to st products and/or to this document at any time without notice. purchasers s hould obtain the latest relevant information on st products before placing orders. st products are sold pursuant to sts terms and conditions of sale in place at the time of or der acknowledgement. purchasers are solely responsible for the choice, select ion, and use of st products and st assumes no liability for application assistance or the design of purchasers products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different from the information set forth herein shall void any warranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replaces information previously supplied in any prior versions of this document. ? 2015 stmicroelectronics C all rights reserved
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