UM1843 User manual - STMicroelectronics
Contents
1. 15 ky DocID027215 Rev 1 3 16 List of figures UM1843 List of figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 4 16 EVAL L9958 evaluation board top side 5 Top side Connectors 0 00 aa aa a Laia Li La La La LL La 6 Bottom side Input Connector 7 Top side LEDs and Rest Rext external reference resistor 8 Top side LEDs and Rest Rext external reference resistor 9 EVAL L9958 Schematic diagram 10 PCB Layout Top side 11 PCB Layout Bottom side 11 L9958 block diagram 12 L9958 Power SO 20 package pinout 12 d DociD027215 Rev 1 UM1843 EVAL L9958 Board description 1 EVAL L9958 Board description 1 1 Board description Figure 1 shows the top side of the EVAL L9958 evaluation board Figure 1 EVAL L9958 evaluation board top side D als SS RI S 319 Rol eeler zbo a k od Lal m J2 a JOND DIR a L 203181219 DR CT NINE Heo S 5 Sto Roma res m Cai A 212121 R4 mm P ma ez E nisn P7 Em mra Ee OM Tel si z rm ari El l s K 9 me AO 8988 Demo Board A B iog ASD413 The evaluation board size is 78 mm x 57 mm the PCB is made by using FR4 glass epoxy support with2. Ces UM1843 SIT aane User manual EVAL L9958 Introduction The EVAL L9958 is the evaluation board designed to provide the user a platform to evaluate the motor driver for DC motors L9958 The board offers all the inputs and outputs capabilities necessary to configure the device and to monitor diagnostic functionalities A lot of test points allow to evaluate and monitor the signals and the HW status of the device The EVAL L9958 can be plugged in the discovery kit developed for the SPC56 microcontroller lines as SPC560P DISP SPC563M DISP and SPC564A DISP Thanks to the limited number of input signals and the SPI communication the EVAL L9958 can be connected to a SPC560D DIS and SPC560B DIS as well as to a generic microcontroller or a control board by a very simple adaptor The L9958 is an SPI controlled H Bridge designed for the control of DC and stepper motors in safety critical applications and under extreme environmental conditions The output of the H Bridge is protected against over temperature short circuits and has an under voltage lockout for all the supply voltages The device is able to detect the open load condition in ON condition for the widest application ranges The current regulation can be programmed by SPI from 2 5 A to 8 6 A typical value in 4 steps The accuracy is very high 10 on all temp range with ext external reference resistor with 1 accuracy The current limitation threshold decreases line
3. Figure 7 PCB Layout Top side XZ N 000 0 0 06 0 0 00 0 o o e 4 Lei A v A e 7 lt a pa A 0 E 2 GAPG2411141310RI Figure 8 PCB Layout Bottom side i es 7 Pa Zi 2 Ze Z Wi Re Re 1a Qi Qi Z Qi KZ tr qe GAPG2411141311RI S DociD027215 Rev 1 11 16 L9958 block diagram and pinout UM1843 4 12 16 L9958 block diagram and pinout Figure 9 L9958 block diagram vs T Undervoltage Charge Pump VDD Under Overvtage D Control Logic GATE DRIVER ael Reference current generator Current Limitation a Overtemperature Te Control Logic Block GAPG2411141518RI Figure 10 L9958 Power SO 20 package pinout GND so VDDIO cs CP vs DIR OUTI DI GND we AJ o o bk wh 10 GND REXT PWM OUT2 EN GND GAPG2411141522RI Table 3 L9958 Power SO 20 package pinout Pin Pin Name Description 1 GND Ground 2 SO Serial Out 3 VDDIO Supply voltage SPI 4 CS Chip Select 5 CP Charge Pump 6 VS Supply Voltage 7 DIR Direction Input 8 OUT Output 1 9 DI Disable 10 GND Ground 11 GND Ground DociD027215 Rev 1 S UM1843 L9958 block diagram and pinout Table 3 L9958 Povver SO 20 package pinou
4. document at any time without notice Purchasers should obtain the latest relevant information on ST products before placing orders ST products are sold pursuant to ST s terms and conditions of sale in place at the time of order acknowledgement Purchasers are solely responsible for the choice selection 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 2014 STMicroelectronics All rights reserved A 16 16 DociD027215 Rev 1
5. 13RI DoclD027215 Rev 1 UM1843 EVAL L9958 Board description Figure 3 Bottom side Input Connector oe uController Connector J8 female TE pata GAPG2411141421RI Table 1 Microcontroller connector J8 Pin description Pin name Description A22 PVVM input signal C17 DI input signal C18 DIR input signal C26 SI input signal D17 EN input signal D18 CS SPI D25 SCK SPI D18 SO SPI C33 VDDIO A34 GND DoclD027215 Rev 1 Two terminal blocs are used to connect the wires from the battery DC source and the motor the operating battery supply voltage is 4 0 28 Voc 7 16 EVAL L9958 Board description UM1843 1 3 1 4 8 16 LEDs and Rext Four LEDs show the status of the VDD Bat and the level of the signals DI and EN their position is depicted in Figure 4 In the same figure is highlighted the position of the Rext External Reference Resistor R4 10 RO Figure 4 Top side LEDs and Rest Rext external reference resistor LED VDD LED DI and EN gai 8 8 3 RSE CE 2 9 MMA Role w m me ry Ko Se EI wf i000 Li L9958 07 e RI El aT a ge ki a R Z a ESTE Jet 8 Si KHA po papi d Sir Bo o ASD413A Ln LED VBatt Voltage regulator Rext External reference resistor GAPG2411141442RI Jumpers Many jumper allow to the user a large HW configuration flexibility see Figure 5 In 1 the descript
6. 2 copper layers The PCB and all components assembled in the evaluation board meet requirements of the applicable RoHS directives 1 2 Input connector and test point The EVAL L9958 needs a very limited number of signals EN DI DIR and PWM The bidirectional communication with a microcontroller by the SPI interface allows the L9958 configuration diagnosis and identification The SPI interface the digital supply voltage and the control signals are connected to the microcontroller connector 4x18 pins 0 1 The microcontroller connector J8 is fully compatible with the SPC56 discovery boards a Vppio the supply voltage for SPI b SPD560P DISP SPC563M DISP SPC564A DISP SPC56L Discovery DoclD027215 Rev 1 5 16 UM1843 EVAL L9958 Board description 6 16 Thanks to the characteristic of this connector male pins on top side and female on bottom side it is very easy to connect the EVAL L9958 to the generic microcontroller evaluation board without soldering wires or to design and assemble a simple adapter Figure 2 Top side Connectors uController Connector J 8 male Test points Input signals and SPI Motor Connector MES zt W Roja m P I IC io R D P ail P ll Jon El RE m CG z mg SE xofer TPs NM A R4 m0 P2 a Lles H 4 om PES hem elf El sal NP Kon 2 E si pel Se 938 Demo Board A4 log ASD413A ei iS nG GE kugi E Power Connector GAPG24111414
7. arly by temperature over 165 C thermal warning bit is set by SPI diagnostic function The H Bridge contains integrated free wheel diodes To traduce the power dissipation in case of free wheeling condition the low side transistor is switched on in parallel of its diode L9958 is available in three power packages for maximum flexibility the device in EVAL L9958 is in Power SO 20 package November 2014 DociD027215 Rev 1 1 16 www st com Contents UM1843 Contents 1 EVAL L9958 Board description 5 1 1 Board description lt p a haah RT 5 1 2 Input connector and test point 5 1 3 LEDS and ReXt 0 R Raa RR N antiga Gerri mati espa Se MAGS sega ge 8 kA JUM PES tanaka DRY RE EE Ae aes Reka KINAYA 8 2 Schematic diagram eg Gea as danesa EE ke ra NN E ram da 10 3 POB Ay OU ra on a EE a de an EE 11 4 L9958 block diagram and pinout 12 Appendix A General handling precautions 14 Revision history og ste na i in mn int ENEE ENER ch an 15 2 16 DocID027215 Rev 1 ky UM1843 List of tables List of tables Table 1 Microcontroller connector J8 Pin description 7 Table 2 Jumpers description and default configuration 9 Table 3 L9958 Power SO 20 package pinout 12 Table 4 Document revision history
8. ion of each jumper Numerous jumpers are present allowing the user to monitor all control signal as well as the SPI interface DociD027215 Rev 1 UM1843 EVAL L9958 Board description Table 2 Jumpers description and default configuration Jamper name Descriptio Default config i from uC ie external source 2 3 uController Gi from UC Eet SN a source 1 2 uController a from a or VDDIO ON bag J6 VDD setting ma from VDDIO or external source Figure 5 Top side LEDs and Rest Rext external reference resistor P J3 and J7 nga RRD FUNGI ES S i s7 TNT KI 3 Roja 5 mari d s Bi JE KI HEI Role armam ES 7 i S ui mR em e pa 3 LI Pag A SES Wetz U2 a C1 c Weg ES 5988 Denio 5 CO J4 Drei micio ASD413A RI EH E 3 z a ma GAPG2411141430RI DociD027215 Rev 1 9 16 Schematic diagram UM1843 2 Schematic diagram Figure 6 EVAL L9958 Schematic diagram VBatt RI7 2 2k GND J5 1 I 10nP 35V 5 a 5 25 C7 PGND C8 CON2 VDD 10uF 16V lOnF 35V Ja MC7805ACD2T U2 a JS S IK 100nF 35V C3 ll St 5 VDDIO TP9 Cl C2 uF HA d T 3 l2 Pa lt S sp SECHER S 302929555225252 z lg Hing lla les E R LS 10 16 DocID027215 Rev 1 ky UM1843 PCB layout 3 PCB layout
9. t continued Pin Pin Name Description 12 EN Enable 13 OUT2 Output 2 14 PVVM PVVM input 15 REXT External Reference Resistor 16 SI Serial In 17 SCR Serial Cloch 18 VDD Supply Voltage 19 N C Not Connected To be connected toi GND on the PCB 20 GND Ground DociD027215 Rev 1 13 16 General handling precautions UM1843 Appendix A General handling precautions 14 16 The following precautions are recommended when using the EVAL L9958 evaluation board Do not modify or manipulate the board and the device when the board is powered and or connected to the microcontroller or to a control board Do not supply the board with a DC source higher than the device maximum voltage Any equipment or tool used for any manipulation of the semiconductor devices or board modification should be connected to ground to avoid ESD The connectors and cables must be plugged and removed when the board is not supplied Antistatic tools are recommended d DociD027215 Rev 1 UM1843 Revision history Revision history Table 4 Document revision history Date 25 Nov 2014 Revision 1 Initial release Changes DociD027215 Rev 1 15 16 UM1843 IMPORTANT NOTICE 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
Download Pdf Manuals
Related Search