"Infineon's stepping motor drive expansion board adopts general 6A H-bridge ifx9201sg and xmc1300 AB step microcontroller (MCU). Ifx9201sg is designed for DC motor or other inductive load. Its output pulse width modulation frequency is up to 20kHz. The RDSON of each switch is 100 m Ω at TJ = 25 ℃. The logic input is compatible with 3.3V and 5.0V TTL / CMOS. It has low standby current, chopper current limit, short-circuit shutdown and overtemperature shutdown with latch behavior, Xmc1300 microcontroller (MCU) is an xmc1000 Series MCU based on arm Cortex-M0 processor core, with real-time motor control, digital power conversion and peripherals for LED lighting applications. Xmc1300 MCU is a high-performance 32-bit arm Cortex-M0 CPU, a single cycle 32-bit hardware multiplier, and the operating system supports system timer (systick), It has ultra-low power consumption and nested vector interrupt controller (NVIC), math coprocessor (Math), CORDIC unit and division unit for triangle algorithm. The on-chip memory includes 8KB ROM, 16kb high-speed SRAM and up to 200KB flash program and data memory, as well as usic, UART, dual SPI and four SPI, IIC, IIS and Lin interface communication peripherals, etc. This paper introduces the main characteristics of ifx9201 + xmc1300, block diagram, various H-bridge application circuit diagrams, stepping motor drive expansion board frame diagram and application block diagram, circuit diagram and PCB design diagram.
The IFX9201SG is a general purpose 6 A H-Bridge， designed for the control of DC motors or other inductive loads.
The outputs can be pulse width modulated at frequencies up to 20kHz. PWM/DIR control reduces the number ofPWM capable pins needed on the microcontroler side.
For load currents above the current limitation threshold （8A typ.） the H-Bridge goes into chopper current limitationmode. It is protected against short circuits and overtemperature and provides extensive diagnosis via SPI or basicfeedback via error flag. Open load can be detected when the bridge is disabled or during PWM operation ofinductive loads.
The robust PG-DSO-12-17 package provides excellent thermal capabilites due to the thick copper heat slug.
Thanks to the protruding edges of the heatslug the package is well suited for automatic optical solder inspection.
The IFX9201SG is not qualified and manufactured according to the requirements of Infineon Technologies withregards to automotive and/or transportation applications. For automotive applications please refer to theTLE9201SG.
Main features of ifx9201sg:
• RDSon of 100 mΩper switch typ. at Tj=25℃
• Logic inputs 3.3 V and 5.0 V TTL/CMOS-compatible
• Low standby current
• Chopper current limitation
• Short circuit shut down with latch behavior
• Overtemperature shut down with latch behavior
• VS undervoltage shutdown
• Open load detection in ON and OFF state
• Detailed SPI diagnosis or simple error flag
• Green product （RoHS compliant）
Figure 1. Block diagram of ifx9201sg
Figure 2. Application circuit diagram of H-bridge with SPI interface of ifx9201sg
Figure 3. Application circuit diagram of ifx9201sg H-bridge with error flag
Figure 4. Ifx9201sg SPI daisy chain configuration (other signals are omitted)
Figure 5. Application circuit of ifx9201sg VSO as enable input
Figure 6. Application circuit of reverse polarity protection
Xmc1300 AB step microcontroller (MCU)
XMC1300 AB-Step Microcontroller Seriesfor Industrial Applications
The XMC1300 devices are members of the XMC1000 Family of microcontrollers based on the ARM Cortex-M0 processor core. The XMC1300 series addresses the real-time control needs of motor control， digital power conversion. It also features peripherals for LED Lighting applications.
Figure 7. Xmc1300 system block diagram
CPU subsystem
• CPU Core
– High-performance 32-bit ARM Cortex-M0 CPU
– Most 16-bit Thumb and subset of 32-bit Thumb2 instruction set
– Single cycle 32-bit hardware multiplier
– System timer （SysTick） for Operating System support
– Ultra low power consumption
• Nested Vectored Interrupt Controller （NVIC）
• Event Request Unit （ERU） for processing of external and internal service requests
• MATH Co-processor （MATH）
– CORDIC unit for trigonometric calculation
– division unit
On chip memory
• 8 kbytes on-chip ROM
• 16 kbytes on-chip high-speed SRAM
• up to 200 kbytes on-chip Flash program and data memory
Communication external equipment
• Two Universal Serial Interface Channels （USIC）， usable as UART， double-SPI，
quad-SPI， IIC， IIS and LIN interfaces
Analog front end peripherals
• A/D Converters
– up to 12 analog input pins
– 2 sample and hold stages with 8 analog input channels each
– fast 12-bit analog to digital converter with adjustable gain
• Up to 8 channels of out of range comparators （ORC）
• Up to 3 fast analog comparators （ACMP）
• Temperature Sensor （TSE）
Industrial control peripherals
• Capture/Compare Units 4 （CCU4） as general purpose timers
• Capture/Compare Units 8 （CCU8） for motor control and power conversion
• Position Interfaces （POSIF） for hall and quadrature encoders and motor positioning
• Brightness and Colour Control Unit （BCCU）， for LED color and dimming application
System control
• Window Watchdog Timer （WDT） for safety sensitive applications
• Real Time Clock module with alarm support （RTC）
• System Control Unit （SCU） for system configuration and control
• Pseudo random number generator （PRNG） for fast random data generation
Input / output line
• Tri-stated in input mode
• Push/pull or open drain output mode
• Configurable pad hysteresis
Support on-chip debugging
• Support for debug features： 4 breakpoints， 2 watchpoints
• Various interfaces： ARM serial wire debug （SWD）， single pin debug （SPD）
Figure 8. Outline drawing of stepping motor drive expansion board
Figure 9. Overview of stepping motor drive expansion board with ifx9201 and xmc1300
Figure 10. Frame diagram of stepping motor drive expansion board
Figure 11. Stepper motor drive expansion board: connecting motor, power supply and control signal diagram
Figure 12. Stepper motor drive expansion board: xmc1302 connection overview
Figure 13. Stepper motor drive expansion board: connector
Figure 14. Stepping motor drive expansion board: xmc1302 MCU
Figure 15. Stepper motor drive expansion board: power supply
Figure 16. Stepper motor drive expansion board: current detection amplifier
Figure 17. Stepper motor drive expansion board: current detection circuit
Figure 18. PCB design of stepping motor drive expansion board: top layer
Figure 19. PCB design of stepping motor drive expansion board: bottom layer, read the full text“
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