ST STEVAL-IPMnM1S User Manual
ST STEVAL-IPMnM1S User Manual

ST STEVAL-IPMnM1S User Manual

Motor control power board based on the sllimm-nano smd of mosfet ipms

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UM2467
User manual
STEVAL-IPMnM1S motor control power board based on the SLLIMM™-nano
SMD of MOSFET IPMs
Introduction
The
STEVAL-IPMnM1S
is a compact motor drive power board based on SLLIMM-nano SMD (small low-loss intelligent molded
module) product (STIPNS1M50T-H). It provides an affordable and easy-to-use solution for driving high power motors in a wide
range of applications such as power white goods, air conditioning, compressors, power fans and 3-phase inverters for motor
drives in general.
The IPM itself consists of six MOSFETs, three high voltage half-bridge gate driver ICs and a wide range of features like
undervoltage lockout, smart shutdown, internal temperature sensor and NTC, overcurrent protection and internal op-amp.
The main characteristics of this evaluation board are small size, minimal BOM and high efficiency. It features an interface circuit
(BUS and VCC connectors), bootstrap capacitors, snubber capacitor, hardware short-circuit protection, fault event signal and
temperature monitoring. It is designed to work in single- or three-shunt configuration and with triple current sensing options:
three dedicated on-board op-amps, op-amps embedded on MCU or single internal IPM op-amp. The Hall/Encoder part
completes the circuit.
The system is designed to achieve accurate and fast conditioning of current feedback to satisfy the typical requirements for field
oriented control (FOC).
The STEVAL-IPMnM1S is compatible with ST's control board based on STM32, providing a complete platform for motor control.
Figure 1.
Motor control board (top view) based on SLLIMM-nano SMD
UM2467 - Rev 1 - September 2018
www.st.com
For further information contact your local STMicroelectronics sales office.

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Summary of Contents for ST STEVAL-IPMnM1S

  • Page 1: Figure 1. Motor Control Board (Top View) Based On Sllimm-Nano Smd

    The system is designed to achieve accurate and fast conditioning of current feedback to satisfy the typical requirements for field oriented control (FOC). The STEVAL-IPMnM1S is compatible with ST’s control board based on STM32, providing a complete platform for motor control. Figure 1.
  • Page 2: General Safety Instructions

    UM2467 General safety instructions General safety instructions Danger: The evaluation board works with high voltage which could be deadly for the users. Furthermore all circuits on the board are not isolated from the line input. Due to the high power density, the components on the board as well as the heat sink can be heated to a very high temperature, which can cause a burning risk when touched directly.
  • Page 3: Key Features

    Hall sensor or encoder input • MOSFETs intelligent power module: – SLLIMM-nano IPM (STIPNS1M50T-H) - SMD package • Motor control connector (32 pins) interfacing with ST MCU boards • Universal design for further evaluation with breadboard and testing pins • Very compact size •...
  • Page 4: Circuit Schematics

    Three current sensing options are provided: three dedicated onboard op-amps, one internal IPM op-amp and the embedded MCU op-amps; selection is performed through three jumpers. The Hall/Encoder section (powered at 5 V or 3.3 V) completes the circuit. Schematic diagrams Figure 2. STEVAL-IPMnM1S - circuit schematic (1 of 5) UM2467 - Rev 1 page 4/30...
  • Page 5: Figure 3. Steval-Ipmnm1S - Circuit Schematic (2 Of 5)

    UM2467 Schematic diagrams Figure 3. STEVAL-IPMnM1S - circuit schematic (2 of 5) UM2467 - Rev 1 page 5/30...
  • Page 6: Figure 4. Steval-Ipmnm1S - Circuit Schematic (3 Of 5)

    UM2467 Schematic diagrams Figure 4. STEVAL-IPMnM1S - circuit schematic (3 of 5) IPM module LED Red phase _C D/OD Phase C - input TP19 nano OP+ TP10 phase _B OPOUT nano OPOUT nano OP- Phase B - input TP13 TP18...
  • Page 7: Figure 5. Steval-Ipmnm1S - Circuit Schematic (4 Of 5)

    UM2467 Schematic diagrams Figure 5. STEVAL-IPMnM1S - circuit schematic (4 of 5) UM2467 - Rev 1 page 7/30...
  • Page 8: Figure 6. Steval-Ipmnm1S - Circuit Schematic (5 Of 5)

    UM2467 Schematic diagrams Figure 6. STEVAL-IPMnM1S - circuit schematic (5 of 5) 3.3V Hall/Encoder 100n SW10 R372k4 M_phase_A SW11 100n R382k4 M_phase_B SW12 R392k4 M_phase_C SW13 SW14 SW15 Encoder/Hall 100n 3.3V SW16 UM2467 - Rev 1 page 8/30...
  • Page 9: Main Characteristics

    PCB area and increases reliability. The board offers the added flexibility of being able to operate in single- or three-shunt configuration by modifying solder bridge jumper settings (see Section 5.3.4 Single- or three-shunt selection). Figure 7. STEVAL-IPMnM1S architecture UM2467 - Rev 1 page 9/30...
  • Page 10: Filters And Key Parameters

    CBOOT Note: This curve is taken from application note AN4840 (available on www.st.com); calculations are based on the STGIP5C60T-Hyy device, which represents the worst case scenario for this kind of calculation. The boot capacitor must be two or three times larger than the C calculated in the graph.
  • Page 11: Overcurrent Protection

    UM2467 Overcurrent protection Overcurrent protection The SLLIMM-nano SMD MOSFET-based integrates a comparator for fault sensing purposes. The comparator has an internal voltage reference V (540 mV typ.) connected to the inverting input, while the non-inverting input on the CIN pin can be connected to an external shunt resistor to implement the overcurrent protection function. When the comparator triggers, the device enters the shutdown state.
  • Page 12: Cin Rc Filter

    UM2467 Overcurrent protection 0.6 2 ∙ 0.68  ∙ 1.3 P SH =   ∙   = 0.2W Considering available commercial values, a 1 W shunt resistor was selected. Based on the previous equations and conditions, the minimum shunt resistance and power rating is summarized below.
  • Page 13: Current Sensing Amplifying Network

    Current sensing amplifying network Current sensing amplifying network The STEVAL-IPMnM1S motor control demonstration board can be configured to run in three-shunt or single-shunt configurations for field oriented control (FOC). The current can be sensed thanks to the shunt resistor and amplified by using the on-board operational amplifiers or by the MCU (if equipped with op-amp).
  • Page 14: Table 3. Amplifying Networks

    UM2467 Current sensing amplifying network Table 3. Amplifying networks Amplifying network RC filter Phase Phase A (U) Phase B (V) Phase C (W) UM2467 - Rev 1 page 14/30...
  • Page 15: Temperature Monitoring

    UM2467 Temperature monitoring Temperature monitoring The SLLIMM-nano SMD MOSFET family integrates an NTC thermistor placed close to the power stage. The board is designed to use it in sharing with the SD pin. Monitoring can be enabled and disabled via the SW4 switch.
  • Page 16: Firmware Configuration For Stm32 Pmsm Foc Sdk

    Firmware configuration for STM32 PMSM FOC SDK Firmware configuration for STM32 PMSM FOC SDK The following table summarizes the parameters which customize the latest version of the ST FW motor control library for permanent magnet synchronous motors (PMSM): STM32 PMSM FOC SDK for this STEVAL-IPMnM1S.
  • Page 17: Connectors, Jumpers And Test Pins

    UM2467 Connectors, jumpers and test pins Connectors, jumpers and test pins Table 5. Connectors Connector Description / pinout Supply connector (DC – 125 V to 400 V) • Positive + • Negative - Motor control connector 1 - emergency stop 2 - GND 3 - PWM-A-H 4 - GND...
  • Page 18: Table 7. Test Pins

    UM2467 Connectors, jumpers and test pins Jumper Description Choose current V to send to control board Jumper on 1-2: from amplification Jumper on 2-3: directly from motor output Choose current W to send to control board: Jumper on 1-2: from amplification Jumper on 2-3: directly from motor output Enable or disable sending temperature information from NTC to microcontroller Choose 1-shunt or 3-shunt configuration.
  • Page 19 UM2467 Connectors, jumpers and test pins Test Pin Description TP16 TP17 TP18 OUTU TP19 VbootU TP20 LINU (high side U control signal input) TP21 Ground TP22 Ground TP23 HinU (high side U control signal input) TP24 Current_A_amp TP25 Current_B_amp TP26 Current_C_amp TP27 Ground...
  • Page 20: Bill Of Materials

    UM2467 Bill of materials Bill of materials Table 8. STEVAL-IPMnM1S bill of materials Manufacture Item Q.ty Ref. Part / Value Description Order code 330µF CPCYL_D1400 EPCOS B43501A9337M000 C2, C22, C26, 10nF 1206 12065C103KAT2A C3, C4 47µF PTH 2-pin C5, C6, C7 2.2µF...
  • Page 21 UM2467 Bill of materials Manufacture Item Q.ty Ref. Part / Value Description Order code R5, R6, R7, R8, R9, R10, R13, R14, R15, R19, 1kΩ 1206 R21, R22, R23, R26, R27, R30, R31, R32, R43 5.6kΩ 1206 R16, R17, R18 0.33Ω...
  • Page 22: Pcb Design Guide

    UM2467 PCB design guide PCB design guide Optimization of PCB layout for high voltage, high current and high switching frequency applications is a critical point. PCB layout is a complex matter as it includes several aspects, such as length and width of track and circuit areas, but also the proper routing of the traces and the optimized reciprocal arrangement of the various system elements in the PCB area.
  • Page 23: Figure 13. Layout Bottom Side

    UM2467 Layout of reference board Figure 13. Layout bottom side UM2467 - Rev 1 page 23/30...
  • Page 24: Recommendations And Suggestions

    UM2467 Recommendations and suggestions Recommendations and suggestions • The BOM list is not provided with a bulk capacitor already inserted in the PCB. However, the necessary space has been included (C1). In order to obtain a stable bus supply voltage, it is advisable to use an adequate bulk capacity.
  • Page 25: A References

    UM2467 References References Freely available on www.st.com: STIPNS1M50T-H datasheet TSV994 datasheet BAT48 datasheet MMSZ5250B datasheet UM2380 STM32 motor control SDK v5.2 tools AN4043 SLLIMM™-nano small low-loss intelligent molded module UM2467 - Rev 1 page 25/30...
  • Page 26: Revision History

    UM2467 Revision history Table 9. Document revision history Date Version Changes 17-Sep-2018 Initial release. UM2467 - Rev 1 page 26/30...
  • Page 27: Table Of Contents

    UM2467 Contents Contents General safety instructions ............2 Key features .
  • Page 28 ST motor control workbench GUI parameters - STEVAL-IPMnM1S ....... .
  • Page 29 STEVAL-IPMnM1S - circuit schematic (1 of 5) ........
  • Page 30 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’...

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