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[原创] ST STSPIN840两个双向有刷DC马达同时驱动方案

关键词:马达驱动 有刷DC马达 工业自动化 服务机器人 STSPIN840

时间:2018-09-28 14:25:58       作者:ST       来源:中电网

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

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

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

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