STSPIN840紧凑有刷DC马达驱动器介绍

　　ST公司的STSPIN840是紧凑的有刷DC马达驱动器，能同时驱动两个双向有刷DC马达，在4 x 4 mm QFN封装上集成了两个控制逻辑和全保护低RDSon两个全桥功率级，工作电压从7V到45V，最大输出电流1.5Arms，全保护包括非耗散过流保护，短路保护，欠压锁住和热关断。主要用在工业自动化和服务机器人，医疗和保健，ATM，舞台照明，热打印机，纺织和缝纫机，销售机以办公和家庭自动化。本文介绍了STSPIN840主要特性，框图，应用框图和电路，以及马达驱动扩展板X-NUCLEO-IHM15A主要特性，电路图和材料清单。

　　The STSPIN840 is a compact brushed DC motordriver able to drive two bi-directional brushed DCmotors simultaneously. It integrates， in a verysmall 4 x 4 mm QFN package， both the controllogic and a fully protected low RDSon dual fullbridgepower stage.

　　Thanks to a dedicated PARALLEL input pin theparallel mode function can be enabled，transforming the device in an equivalent andmore powerful single full-bridge able to deliver upto 3Arms current at an equivalent HS + LS RDSonof 500 mohm.

　　The STSPIN840 embeds two independent PWMcurrent controllers （one for each full bridge） basedon user settable values of reference voltage andOFF time.The devices can be forced in a low consumptionstate reducing the total current consumption downto less than 45uA.

　　As with all other devices from the STSPIN family，the STSPIN840 integrates a complete set ofprotections for the power stages （non-dissipativeovercurrent， thermal shutdown， short-circuit andundervoltage lockout） making it a bulletproofsolution for the new wave of demanding industrialapplications.

　　STSPIN840主要特性：

　　 Operating voltage from 7 to 45 V

　　 Maximum output current 1.5 Arms

　　 RDSon HS + LS = 1 ohmtyp.

　　 Current control with adjustable OFF time

　　 Current sensing based on external shuntresistors

　　 Full protections set

　　– Non-dissipative overcurrent protection

　　– Short-circuit protection

　　– Undervoltage lockout

　　– Thermal shutdown

　　 Parallel operation mode achieving single fullbridgeconfiguration with output IRMS = 3 Armsand RDSon HS + LS = 500 mohmtyp.

　　 Low standby current consumption

　　STSPIN840应用：

　　 Industrial automation and service robots

　　 Medical and health care

　　 ATM and money handling machines

　　 Stage lighting

　　 Thermal printers

　　 Textile and sewing machines

　　 Vending machines

　　 Office and home automation

　　

　　图1.STSPIN840框图（通用）

　　

　　图2.STSPIN840 PARALLEL模式应用电路

　　

　　图3.STSPIN840典型应用电路

　　基于STSPIN840的双刷DC马达驱动扩展板X-NUCLEO-IHM15A

　　Dual brush DC motor driver expansion board based on STSPIN840 for stm32 Nucleo The X-NUCLEO-IHM15A1 dual brush DC motor driver expansion board is based on the STSPIN840 for STM32 Nucleo.

　　It provides an affordable and easy-to-use solution for the implementation of compact motor driving applications such as thermal printers， robotics and toys.

　　Thanks to the parallel operation， it can be easily converted to a single brush DC driver with double current capability.

　　The current limiters and complete set of protection features make it suitable for rugged applications.

　　The X-NUCLEO-IHM15A1 is compatible with the Arduino UNO R3 connector and most STM32 Nucleo boards.

　　马达驱动扩展板X-NUCLEO-IHM15A主要特性：

　　Voltage range from 7 to 45 V

　　Output current up to 1.5 Arms for each motor

　　Two independent current limiters with adjustable OFF time

　　Full protection set including： overcurrent， short-circuit， under voltage lock out and thermal shutdown

　　Parallel operation

　　Compatible with Arduino UNO R3 connector

　　Compatible with STM32 Nucleo boards

　　

　　图4.马达驱动扩展板X-NUCLEO-IHM15A外形图

　　

　　图5.马达驱动扩展板X-NUCLEO-IHM15A开关和连接器位置图

　　

　　图6.马达驱动扩展板X-NUCLEO-IHM15A电路图

　　马达驱动扩展板X-NUCLEO-IHM15A材料清单：

　　

　　

　　详情请见：

　　https://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-move-actuate-hw/x-nucleo-ihm15a1.html

　　和

　　https://www.st.com/content/ccc/resource/technical/document/user_manual/group1/25/97

　　/d7/aa/39/2e/42/53/DM00492395/files/DM00492395.pdf/jcr:content/translations/en.DM00492395.pdf

　　以及

　　https://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack

　　/group0/09/77/78/f0/e3/df/4b/88/x-nucleo-ihm15a1_schematic/files/x-nucleo-ihm15a1_schematic.pdf/jcr:content/translations/en.x-nucleo-ihm15a1_schematic.pdf

　　和https://www.st.com/content/ccc/resource/technical/document/bill_of_materials/group0

　　/67/7a/38/e4/32/b4/42/ff/x-nucleo-ihm15a1_bom/files/x-nucleo-ihm15a1_bom.pdf/jcr:content/translations/en.x-nucleo-ihm15a1_bom.pdf

　　en.x-nucleo-ihm15a1_schematic.pdf

　　en.DM00492395.pdf

　　stspin840（1）.pdf

　　en.x-nucleo-ihm15a1_bom.pdf