Freescale Semiconductor User’s Guide Document Number: KT33937UG Rev. 2.0, 8/2014 KIT33937AEKEVBE Evaluation Board Contents 1 2 3 4 5 6 7 8 9 10 Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 KIT33937AEKEVBE Evaluation Board Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Board Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 © Freescale Semiconductor, Inc., 2009 - 2014. All rights reserved. Important Notice 1 Important Notice Freescale provides the enclosed product(s) under the following conditions: This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This EVB may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. This EVB is not a Reference Design and is not intended to represent a final design recommendation for any particular application. Final device in an application is heavily dependent on proper printed circuit board layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality. The goods provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations, including product safety measures typically found in the end product incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical support services. Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will be replaced by a new kit. Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typical”, must be validated for each customer application by customer’s technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale product could create a situation where personal injury or death may occur. Should the Buyer purchase or use Freescale products for any such unintended or unauthorized application, the Buyer shall indemnify and hold Freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale was negligent regarding the design or manufacture of the part.Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2014 KT33937UG, Rev. 2.0 2 Freescale Semiconductor Introduction and Setup 2 Introduction and Setup 2.1 Introduction This User’s Manual describes the features, options and connections of the KIT33937AEKEVBE Evaluation Board. Freescale’s KIT33937AEKEVBE Evaluation Board is a low-voltage power stage that is an integral part of Freescale’s embedded motion control series of development tools. For additional information on Freescale’s Motion Control Development Tools go to www.freescale.com/motor control In combination with one of the embedded motion control series, control evaluation boards, it provides a ready-made software development platform for small brushless DC motors among others. An illustration of the system configurations is shown in Figure 1. The KIT33937AEKEVBE Evaluation Board has the following features: • Connecting the Evaluation Board via a UNI-3 connector • SPI communication between the 33937A Driver and a microcontroller • DC-Bus current and voltage sensing • Over-current detection with adjustable current maximum value • Optional input supply voltage of 8 - 42 Volts • 3.3 V, 5.0 V, and 12 V voltage generation on the boards • Output 3-phase motor connector Figure 1 depicts the board layout with descriptions of the components. * CONTROLLER BOARD WORKSTATION KIT33937AEKEVBE MC33927 EVALUATION BOARD MOTOR OPTIONAL FEEDBACK * MCF523xEC, MPC555, 56800/E HYBRID CONTROLLER, S12Exx MICROCONTROLLER Figure 1. System Configuration KT33937UG, Rev. 2.0 Freescale Semiconductor 3 Introduction and Setup 2.2 About this Manual Key items can be found in the following locations in this manual: • Setup instructions are found in section Setup Guide. • Pin-by-pin descriptions are contained in Table 2 up to Table 10. • For those interested in the reference design aspects of the board’s circuitry, a description is provided in Design Considerations Figure 2. KIT33937AEKEVBE Evaluation Board 2.3 Disposing of Old Appliances The KIT33937AEKEVBE Evaluation Board must be disposed of in compliance with current local waste disposal regulations. Disposing of old appliances should be done by a qualified company. 2.4 Terms and Acronyms BLDC Brushless DC EVB Evaluation Board Hall sensor Sensor whose output changes based on changes in magnetic flux. Used to measure motor position. PWM Pulse width modulation UNI-3 User-to-Network Interface KT33937UG, Rev. 2.0 4 Freescale Semiconductor Introduction and Setup 2.5 Warnings The KIT33937AEKEVBE Evaluation Board includes components which can reach temperatures hot enough to cause burns. To facilitate safe operation, the 8.0 to 42 V input power should come from a DC laboratory power supply that is current limited to no more than 4.5 amps. The user should be aware of: • Before moving scope probes, making connections, etc., it is generally advisable to power down the DC voltage supply. • Operating in lab setups that have grounded tables and/or chairs should be avoided. • It is also advisable to wear safety glasses, avoiding wearing ties and jewelry, use shields, and operate by personnel trained in power electronics lab techniques are also advisable. 2.6 Setup Guide Setup and connections for the KIT33937AEKEVBE Evaluation Board are straightforward. The KIT33937AEKEVBE Evaluation Board connects to a Freescale embedded motion control series control board via a 40-pin ribbon cable. The motor’s power leads plug into output Motor connector (J100). Figure 3 depicts a completed setup. Follow these steps to set up the board: 1. Plug one end of the 40-pin ribbon cable supplied with Freescale’s embedded motion control series control boards into input UNI-3 connector (J200), located at the edge of the KIT33937AEKEVBE Evaluation Board. 2. Plug the free end of the cable into the control board’s 40-pin connector. 3. Connect a 8.0 to 42 VDC power supply either to the power jack J7 labelled “8-42 V”, or to the connector J1. 4. If protection features are desired, set the overcurrent detection comparator trimmer, R114, to 2.75 V. This value limits DC bus current to 3.0 amps. 5. Apply power to the KIT33937AEKEVBE Evaluation Board. The yellow power-on LED is lit when power is present. Note that the KIT33937AEKEVBE Evaluation Board doesn’t power the control board, so the control board must be powered by means of an external 12 VDC power supply to run a complete system. MOTOR 40-PIN RIBBON CABLE J4 J1 MC33297 Evaluation Board CONTROL BOARD 33937A Evaluation Board 8-42 Vdc POWER SUPPLY 12-VOLT POWER SUPPLY Figure 3. KIT33937AEKEVBE Evaluation Board Setup KT33937UG, Rev. 2.0 Freescale Semiconductor 5 Operational Description 3 Operational Description 3.1 Introduction Freescale’s embedded motion control series KIT33937AEKEVBE Evaluation Board is a 8.0 to 42 VDC, 4.5 amp, surface-mounted power stage. In combination with one of the embedded motion control series control boards, it provides a software development platform that allows algorithms to be written and tested without the need to design and build a power stage for small brushless DC motors, amongst others. It supports algorithms that use Hall sensors, a Quadrature encoder, and Zero-cross signals for sensor-less control. The KIT33937AEKEVBE Evaluation Board has an overcurrent protection that is implemented on the 33937A driver and is independent of the control board. Current measuring circuitry is set up from -4.5 to 4.5 amps full scale. In a 25 °C ambient operation at up to 4.5 A, continuous RMS output current is within the board’s thermal limits. The control interface is created via the 40-pin ribbon cable connector J200. Pin assignments for the input connector are shown in Figure 4. Power connections to the motor are made on output connector J100. Phase A, B, and C are labelled on the board. Power requirements are met by a single external 8.0 to 42 V, 5.0 A power supply. Two connectors, labelled J7 and J1, are provided for the power supply. Both are located in one corner of the board. For design information, see Design Considerations. 3.2 Electrical Characteristics The electrical characteristics in Table 1 apply to operation at 25 C and a 12 VDC power supply voltage. Table 1. Electrical Characteristics Characteristic Power Supply Voltage Min. Typ. Max. Units VDC 8.0 12 42 V Quiescent Current ICC — 10.4 — mA Logic 1 Input Voltage VIH 2.1 — — V Logic 0 Input Voltage VIL — — 0.9 V Analog Output Range VOUT 0.0 — 3.3 V Bus Current Sense Voltage ISENSE — 366 — mV/A Bus Voltage Sense Voltage VBUS — 69 — mV/V RDS(ON) — 45 55 mOhm ID — — 4.5 A Pulsed Output Current IDM — — 30 A Total Power Dissipation PDISS — — 2.4 W Power MOSFET On Resistance Continuous Output Current 4 Symbol Pin Description 4.1 Connectors and Test Points Inputs and outputs are located on connectors and test points. Pin descriptions for each of these connectors and the test points are identified in following information. 4.2 40-Pin Connector J200 Signal inputs and outputs are grouped together on the 40-pin connector J200, located on the top of the board. Pin assignments and descriptions are shown in Figure 4. Pin descriptions are listed in Table 2. KT33937UG, Rev. 2.0 6 Freescale Semiconductor Pin Description Note that some J200 signals have a different usage than in the standard UNI-3 Interface. This is due to the need for the SPI communication 33937A driver and the driver control signals - Reset, Enable, and Overcurrent. Some pins on J200 are not connected, in comparison to the UNI-3 standard. Changed pin assignments are shown in Table 2 For more information refer to Table 9 Table 2. Changed Pins’ Descriptions Pin # UNI-3 Standard J12 Connector 19 +15 V_A / +12 V_A +12 V 20 -15 V_A / -12 V_A Not connected 23 I_sense_A SPI_CSB 24 I_sense_B SPI_SO 25 I_sense_C SPI_SI 26 Temp_sense SPI_SCLK 29 Brake_control DRV_INT 30 Serial_con DRV_RST 31 PFC_PWM DRV_EN 32 PFC_enable OC_IRQ 33 PFC_z_c Not connected 38 BEMF_sense_A Not connected 39 BEMF_sense_B Not connected 40 BEMF_sense_C Not connected KT33937UG, Rev. 2.0 Freescale Semiconductor 7 Pin Description J200 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 NC NC NC Shielding Zero_cross_C Zero_cross_B Zero_cross_A NCc OC_IRQ DRV_EN DRV_RST INT Shielding Reserved SCLK SI SO CSB I_sense_DCB V_sense_DCB NC +12V_A GNDA GNDA +5V_A +5V_D +5V_D GND GND PWM_CB Shielding PWM_CT Shielding PWM_BB Shielding PWM_BT Shielding PWM_AB Shielding PWM_AT PWM_AT PWM_AB PWM_BT PWM_BB PWM_CT PWM_CB GND +5V_D GNDA +12V_A V_sense_DCB CSB SI Reserved INT DRV_EN Reserved Zero_cross_A Shielding_A B NC 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Shielding Shielding Shielding Shielding Shielding GND +5V_D +5V_A GNDA -12V_A I_sense_DCB SO SCLK Shielding_A DRV_RST OC_IRQ Zero_cross_A Zero_cross_C NC NC PHYSICAL VIEW CON/40 SCHEMATIC VIEW Figure 4. 40-Pin Input Connector J200 KT33937UG, Rev. 2.0 8 Freescale Semiconductor Pin Description Table 3. Connector J200 Signal Description Pin # Signal Name Description 1 PWM_AT PWM_AT is the gate drive signal for the top bridge of phase A. A logic high at input connector J10 turns on the phase A top switch 3 PWM_AB PWM_AT is the gate drive signal for the bottom bridge of phase A. A logic high at input connector J10 turns on the phase A bottom switch 5 PWM_BT PWM_BT is the gate drive signal for the top bridge of phase B. A logic high at input connector J10 turns on the phase B top switch 7 PWM_BB PWM_AT is the gate drive signal for the bottom bridge of phase B. A logic high at input connector J10 turns on the phase B bottom switch 9 PWM_CT PWM_AT is the gate drive signal for the top bridge of phase C. A logic high at input connector J10 turns on the phase C top switch 11 PWM_CB PWM_AT is the gate drive signal for the bottom bridge of phase C. A logic high at input connector J10 turns on the phase C bottom switch 12 GND Digital power supply ground 13 GND Digital power supply ground 17 AGND Analog power supply ground 18 AGND Analog power supply ground 19 * +12V_A 20 * NC 21 V_SENSE_DCB V_sense is an analog sense signal that measures dc bus voltage 22 I_SENSE_DCB I_sense is an analog sense signal that measures dc bus current 23 * CSB Chip select signal of the SPI communication 24 * SO Output signal of the SPI communication Analog power supply Not connected 25 * SI Input signal of the SPI communication 26 * SCLK Clock signal of the SPI communication 27 NC 28 Shielding_A Not Connected Analog Shielding. Must be grounded on the power stage side only! 29 * DRV_ INT 33937A driver Interrupt signal 30 * DRV_RST 33937A driver Reset signal 31 * DRV_EN 33937A driver Enable signal 32 * OC_IRQ 33937A driver Overcurrent signal 33 * NC 34 Zero_cross_A Not connected Digital input. Phase A Back-EMF zero crossing 35 Zero_cross_B Digital input. Phase B Back-EMF zero crossing 36 Zero_cross_C Digital input. Phase C Back-EMF zero crossing 37 Shielding_A 38 * NC Analog Shielding. Must be grounded on the power stage side only! Not connected 39 * NC Not connected 40 * NC Not connected NOTE * Pins which are connected differently than in the User Network Interface, Version 3.0 (UNI-3) standard. KT33937UG, Rev. 2.0 Freescale Semiconductor 9 Pin Description 4.3 SPI Communication Connectors J201 and J202 SPI signal inputs from the control board are grouped onto the 6-pin connector J201. Two signals (CSB, SO) are also available on the 2-pin connector J202. Pin descriptions are listed in Table 4 and Table 5. Table 4. Connector J201 Signal Description Pin # Signal Name Description 1 NC Not Connected 2 GND Digital power supply ground 3 CSB Chip select signal 4 SCLK Clock signal 5 SO Output signal 6 SI Input signal Table 5. Connector J202 Signal Description Pin # Signal Name 1 SO Description Output Signal 2 CSB Chip Select signal The output signal SO from the 33937A driver is connected to the control board’s input signal SI, and likewise the input signal SI from the 33937A driver is connected to the control board’s output signal SO. 4.4 3-Pin Motor Connector J100 Power outputs to the motor are located on the 3-pin connector J100, labeled “Motor Connector”. Pin descriptions are listed in Table 6. Table 6. Connector J100 Signal Description 4.5 Pin # Signal Name Description 1 Phase_A Supplies power to motor phase A. 2 Phase_B Supplies power to motor phase B. 3 Phase_C Supplies power to motor phase C. Power Supply Connectors J1 and J7 Two connectors, labelled J1 and J7, are provided for the 8.0 to 42 VDC power supply. Both connectors are used for power supply input, and are located in one corner of the board. The J7 connector is a 2.1 mm power jack for plug-in type dc power supply connections, the J1 connector is a two-wire connector. The power supply should be able to deliver at least 3.0 amps. 4.6 Connectors J2 - J6 One-pin connectors J2 - J6 provide easy access to voltages available on the board. Connector descriptions are listed in Table 7. Table 7. Connectors J3-J6 Signal Description Connector # Signal Name Description J2 V_BATT Power supply voltage J3 +3.3V_A Analog power supply J4 GND Power supply ground J5 +5V Digital power supply J6 +12V Digital power supply KT33937UG, Rev. 2.0 10 Freescale Semiconductor Pin Description 4.7 Connectors J101 - J109 One-pin connectors J101 - J109 provide connections to the additional operational amplifier U100B (MC33502D) and three inverters U101D-F (74HC04). Pin descriptions are listed in Table 8. Table 8. Connectors J101 - J109 Signal Description 4.8 Connector # Signal Name Description J101 AMPi+ op. amplifier non-invert input J102 AMPi- op. amplifier invert input J103 AMPo op. amplifier output J104 NEG1i invertor 1 input J105 NEG1o invertor 2 output J106 NEG2i invertor 2 input J107 NEG2o invertor 2 output J108 NEG3i invertor 3 input J109 NEG3o invertor 3 output Jumpers JP203 - JP206 for SPI Communication Selection The jumpers JP203 - JP206 are used for SPI communication connector selection. The selection of signals is listed in Table 9. Table 9. Jumpers JP1 - JP3 Selection Jumper Name Position Comment for SPI communication J203 12 For CSB signal where the UNI-3 connector is not selected J203 1-2 For CSB signal where the UNI-3 connector is selected J204 12 For SO signal where the UNI-3 connector is not selected J204 1-2 For SO signal where the UNI-3 connector is selected J205 12 For SI signal where the UNI-3 connector is not selected J205 1-2 For SI signal where the UNI-3 connector is selected J206 12 For SCLK signal where the UNI-3 connector is not selected J206 1-2 For SCLK signal where the UNI-3 connector is selected Position 1-2 4.9 Position 1 2 Test points Six test points provide easy access to the DC-Bus current and voltage sensing signals. They are listed in Table 10 along with their descriptions and locations. Table 10. Test points Test point no. Signal Name Locations TP100 +1.65 Ref middle side of the board TP101 OC_TH below IC U102 TP102 VDCB below connector J200 TP103 I_DCB+ right side of the resistor R100 TP104 IDCB- left side of the resistor R100 TP105 IDCB below connector J200 KT33937UG, Rev. 2.0 Freescale Semiconductor 11 Design Considerations 5 Design Considerations 5.1 Overview From a systems point of view, the KIT33937AEKEVBE Evaluation Board fits into an architecture that is designed for code development. In addition to the hardware that is needed to run a motor, a variety of feedback signals that facilitate control algorithm development are provided. Input PWM signals from a control board process the 3-phase FET pre-driver 33937A. The description of the pre-driver is contained in 3-Phase FET Pre-driver 33937A. The KIT33937AEKEVBE Evaluation Board power output stage is a complementary MOS field effect transistor (MOSFET) 3-phase bridge, capable of supplying and sensing 4.5 amps of continuous current. Feedback signals include bus voltage and the bus current. Descriptions of each of these blocks are contained in 3-Phase Driver, and in Bus Voltage and Current Feedback. 5.2 3-Phase FET Pre-driver 33937A The 3-Phase FET Pre-driver (33937A) is a FET pre-driver for 3-phase motor control and similar applications. The IC uses Freescale's SMARTMOS technology. The IC contains 3 high-side FET pre-drivers and 3 low-side pre-driver. Three external bootstrap capacitors provide gate charge to the high-side FETs. The IC contains internal registers to control the various operating parameters, modes and interrupt characteristics.These commands are sent and the status is read via 8-bit SPI commands. The IC will use the last 8 bits in a SPI transfer, so devices can be daisy-chained. The return value from a SPI command is obtained via the SPI port on the subsequent command. It is in the SPI communication for the next command that the response is delivered. The IC also contains the high speed amplifier for ground current sensing, and the overcurrent comparator for overcurrent detection. For more information on the pre-driver, refer to References. 5.3 3-Phase Driver The output stage is configured as a 3-phase driver with complementary MOSFET output transistors. It is simplified considerably by dual integrated gate drivers, each having one inverting and one non-inverting driver. A simplified schematic showing one phase is illustrated in Figure 9. One of the most important design decisions in a motor drive is the selection of the gate drive impedance for the output transistors. In Figure 9, resistors R101 (51 ), R102 (51 ), and diode D100 determine gate drive impedance for the upper half-bridge transistor. A similar network is used on the lower half-bridge. These networks set the turn-on gate drive impedance to approximately 100 and the turn-off gate drive impedance at approximately 50 . These values produce transition times of approximately 60 ns. Transition times of this length represent a carefully weighed compromise between power dissipation and noise generation. Generally speaking, transition times longer than 250 ns tend to get power hungry at non-audible PWM rates; and transition times under 50 ns create di/dtfs so large that proper operation is difficult to achieve. The 33937A EVB is designed with switching times at the lower end of this range to minimize power dissipation. 5.4 Bus Voltage and Current Feedback Feedback signals proportional to bus voltage and bus current are provided by the circuitry shown in Figure 8. Bus voltage is scaled down by a voltage divider consisting of R115 (47 kohms), R118 (1.8 kohms), and R120 (3.6 kohms). The values are chosen such that a 48-volt maximum bus voltage corresponds to a 3.3 volt maximum analog-to-digital (A/D) input. Bus current is sampled by resistor R100, shown in Figure 9, and amplified by the 33937A driver. This circuit provides a voltage output suitable for sampling with A/D inputs. The gain is given by: A = R117 / R121 (resistors are shown in Figure 8) The output voltage is shifted up by 1.65 V, to accommodate both positive and negative current swings. A 180 mV voltage drop across the shunt resistor corresponds to a measured current range of 4.5 A and to a voltage range from 0 to 3.3 V. The overcurrent comparator, implemented on the 33937A driver, is adjusted by the trimmer R114 (shown in Figure 7), where a 2.75 V setting for the overcurrent detection comparator produces a 3.0 A current limit. KT33937UG, Rev. 2.0 12 Freescale Semiconductor 1 3 2 GND C24 330pF 10V DCB_NEG C6 22uF/100V + GND C25 1nF 10V R6 68k C19 100nF 100V C17 1uF 20V 200k 174k-1% 20k-1% 8 7 6 5 4 3 2 1 R8 C7 100nF/100V R3 R7 D5 BAS16HT1 L3 TDK TH/220uH DO3316P-224 CATHODE + C26 1uF 100V GND DCB_POS Current flows when >40V TS1 BZW06-40 MBRA160T3 D4 J7 J1 + C18 1uF 100V DCB_POS GND ANODE 8-42V PWR Jack 1 2 CON/2screws D1 MBRD660CT RON RCL VIN SGND VFB VC GND 5 SW_L SGND 9 10 11 12 13 LT3433IFE SGND SS SHDN VBIAS VOUT 14 15 16 C8 100nF/50V LM5007 U1 FB SW 1 10nF/50V PWRGND GND BURST_EN VIN SW_H VBST SGND U4 R4 100k 6 3 8 RTN 4 GND C22 10nF 10V DCB_POS GND R5 3k R2 3k GND + GND +5V C23 0.1uF 10V BAS16HT1 D7 GND C20 100nF 16V TP2 +12V GND + C21 47uF 25V +12V Power Supply for UNI-3 MBRA120ET3 D6 12V/100mA +2.5V L1 TDK TH/100uH +5V Voltage Generation 33uF/16V C2 C1 100nF/16V C3 Range 8V - 42V 100nF/16V C4 Supply Voltage 100nF/16V C5 2 BST VCC G G G G EXPOSED_PAD MBR0520LT3 D2 7 21 20 19 18 17 GC1 R1 330R LED_ON1 YELLOW GNDA GNDA GND GND_LSFET +5V_A +12V +5V +3.3V VDD +3.3V_A + 1 100nF C10 3 + GND 47uF/6.3V C13 +5V GND 100nF C14 GND 1 3 U3 VOUT VOUT MC33269ST-3.3T3 GND VIN GNDA CE 4 2 + GND 100nF C12 +3.3V_A J6 1 J5 1 47uF/6.3V + C16 GND +12V +5V GND +3.3V 10uF/6.3V +12V +5V GNDA C15 100nF J4 1 +3.3V_A J3 1 V_BATT J2 1 == DCB_NEG GND +3.3V_A DCB_POS C11 GNDA SM/1N4001 GNDA GND GND_LSFET +5V_A +12V +5V +3.3V VDD +3.3V_A U2 MC78PC33NTR Vin Vout 5 D3 +3.3V Voltage Generation GNDA +5V_A GNDA 22uF/20V C9 1mH L2 TP1 +5V_A +3.3V_A Voltage Generation +5V GND Ground_Connection GND +3.3V Pover ON LED Gnd Freescale Semiconductor 2 6 Power Supply KIT33937AEKEVBE Evaluation Board Schematics KIT33937AEKEVBE Evaluation Board Schematics Figure 5. Power Supply KT33937UG, Rev. 2.0 13 14 SO J204 SSel2 2 1 100R R202 100R J205 SSel3 SI 2 1 2 1 C202 12nF C201 12nF J206 SSel4 SCLK GNDA GNDA Optional SPI Connection when the separate 5in-line-pin or 6-double-line-pin is unusable CSB J203 SSel1 2 1 I_DCB V_DCB R201 +12V +5V_A +5V ZC_A ZC_B ZC_C Zero cross pins - if application run wished without external HS GND GNDA PWM_AT INT /DRV_RST DRV_EN OC_IRQ PWM_CB PWM_CT PWM_BB PWM_BT PWM_AB Ctrl1/PWM_AT Shielding_D Ctrl2/PWM_AB Shielding_D Ctrl3/PWM_BT Shielding_D Ctrl4/PWM_BB Shielding_D Ctrl5/PWM_CT Shielding_D Ctrl6/PWM_CB GND GND +5V_D +5V_D +5V_A GNDA GNDA +15V_A/+12V_A -15V_A/-12V_A V_sense_DCB I_sense_DCB I_sense_A I_sense_B I_sense_C Temp_sense Reserved Shielding_A Brake_control Serial_Con PFC_PWM PFC_enable PFC_z_c Zero_cross_A Zero_cross_B Zero_cross_C Shielding_A BEMF_sense_A BEMF_sense_B BEMF_sense_C According to UNI-3 spec. J200 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 UNI-3 UNI-3 Connector GND 6 4 2 2 1 SPI1 SPI2 J201 J202 5 3 1 SO CSB CPU....DRV ------- -----MOSI....SO MISO....SI Compatibility Connections: p5-SS...CSB-2(J202)/-3(J201) p4-MOSI...SO-1(J202)/-5(J201) p3-MISO...SI-6(J201) p2-SPSCK...SCLK-4(J201) p1-GND-2(J201) Place the conns close to J200 (for ctrl board counterparts): UNI-3pin1 towards SPI1pin1 & J201/J202 inline as shown SI SCLK CSB SO SPI GNDA GND GND_LSFET +5V_A +12V +5V +3.3V VDD +3.3V_A GNDA GND GND_LSFET +5V_A +12V +5V +3.3V VDD +3.3V_A KIT33937AEKEVBE Evaluation Board Schematics Figure 6. UNI-3 Connector KT33937UG, Rev. 2.0 Freescale Semiconductor P WM_C T P WM_B T P WM_AT G ND 3 1 G NDA G ND G ND_LS F E T +5V_A +12V +5V G NDA G ND G ND_LS F E T +5V_A +12V +5V +3.3V VDD +3.3V_A G ND 74HC 04D U101A VC C 2 G ND VDD +3.3V 6 +5V +3.3V_A 100nF /6.3V C 103 4 74HC 04D 74HC 04D U101B 5 U101C 14 Freescale Semiconductor 7 G ND VDD C 111 470nF /6.3V AMP _P AMP _N SO INT DC B _P OS SI 10k C 102 1nF 60V VDD Decoupling capacitor P lace as close as possible to VDD pin of U100 AMP _OUT R 124 G ND + C 101 2.2uF 60V ZC _B ZC _C J 106 J 104 NE G 2i 1 NE G 1i OC _IR Q P WM_C B S C LK CSB P WM_B B 1 /DR V_R S T P WM_AB G ND DR V_E N ZC _A G ND G ND 9 U102 U101D MC 33937A U101E R 126 74HC 04D 10k J 108 11 J 105 1 J 107 1 NE G 3i 1 NE G 2o 10 NE G 1o 8 G ND U101F 10k R 114 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 2 R 127 74HC 04D 10k 13 G ND 3 TP 101 OC _TH P haseA VP WR P G ND for QP UMP N/C E NAB LE 1 N/C E NAB LE 2 VLS R E S E TB N/C N/C N/C P UMP P A_B OOTS TR AP VP UMP (12V) P A_HS _G VS UP (42V) P A_HS _S P haseB P A_LS _G P haseC P A_LS _S nP A_HS P B _B OOTS TR AP P A_LS P B _HS _G VDD P B _HS _S nP B _HS P B _LS _G P B _LS P B _LS _S INT P C _B OOTS TR AP CSB P C _HS _G SI P C _HS _S S C LK P C _LS _G SO P C _LS _S P C _LS N/C nP C _HS VLS _C AP AMP _OUT G ND1 AMP _N G ND0 AMP _P VS S OC _Out OC _TH R 125 74HC 04D 10k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 J 109 1 100n/6.3V NE G 3o 12 1 C 112 G ND +5V C 110 2.2uF /25V P C _LS _G P C _HS _G P B _LS _G P B _HS _G P A_LS _G P A_HS _G G ND_LS F E T + C 108 150nF /50V C 107 150nF /50V C 106 150nF /50V C 109 100nF 25V P H_C P H_B P H_A G ND_LS F E T + P lace as close as possible to the pins. G ND_LS F E T C 104 2.2uF /25V P lace as close as possible to the pins. C 105 100nF 25V KIT33937AEKEVBE Evaluation Board Schematics Figure 7. 33937A Driver KT33937UG, Rev. 2.0 15 DCB_NEG DCB_POS +3.3V_A R120 3.6k-1% MBRA160T3 R118 1.8k-1% D106 R115 47k-1% V_DCB 3.30V @ 48V TP102 VDCB C100 10n/6.3V GNDA +3.3V_A R119 10k-1% R116 10k-1% + - 3 2 TP100 1 +1.65ref I_DCBUS_NEG I_DCBUS_POS GNDA U100A MC33502D 100nF C113 GNDA 8 16 4 DC Bus Voltage Sensing TP104 I_DCB- TP103 I_DCB+ R122 1.2k-1% R121 1.2k-1% 11k-1% R117 DC-Bus Voltage & Current Sensing J101 1 R128 10k J102 1 - + AMP_OUT 7 +3.3V_A I_DCB J103 1 AMPo 0~3.3V @ -4.5 ~ 4.5A OpAmp is within 3PP-A TP105 IDCB U103B MC33502D R129 10k 6 5 MBRA160T3 D107 AMPi- R123 11k-1% AMP_N AMP_P GNDA AMPi+ DC Bus Current Sensing KIT33937AEKEVBE Evaluation Board Schematics Figure 8. DC-Bus Voltage & Current Sensing KT33937UG, Rev. 2.0 Freescale Semiconductor DCB_NEG 1 2 0.040-1% 40mV/1A R100 PA_LS_G R102 51R R108 51R I_DCBUS_NEG I_DCBUS_POS Create the junctions as close to the resistor R100 as possible. R107 51R MBRM140T3 D101 R101 51R 4 PH_A 2 1 3 MBRM140T3 D100 Si4946EY Q104-2 Si4946EY Q100-1 PB_LS_G PB_HS_G R104 51R R109 51R R110 51R MBRM140T3 D103 R103 51R MBRM140T3 D102 4 PH_B 2 1 8 5 7 6 Si4946EY Q105-2 Si4946EY Q101-1 GND_LSFET 3 PA_HS_G R106 51R R112 51R 4 PH_C 2 PH_A PH_B PH_C J100 1 2 3 3-ph. Motor 3-ph. Motor Connector R111 51R MBRM140T3 D105 R105 51R MBRM140T3 D104 1 3-pin Molex 39-26-3030 (mating with 26-11-2033) Tycoelectronic: 640387-3 / Farnell 1453026 pin 1: Phase A (brown) pin 2: Phase B (red) pin 3: Phase C (orange) PC_LS_G PC_HS_G 7 6 8 5 7 6 DCB_POS 8 5 Freescale Semiconductor 3 3-Phase N-MOS Bridge Si4946EY Q103-2 Si4946EY Q102-1 KIT33937AEKEVBE Evaluation Board Schematics Figure 9. 3-Phase N-MOS Bridge KT33937UG, Rev. 2.0 17 Bill of Materials 7 Bill of Materials Table 11. Bill of Materials Qty. Reference 1 C1 1 C2 3 C3, C4, C5 Part Value Description Mfg. Mfg. Part No. 10 nF/50 V Ceramic capacitor, 0805, 10 nF AVX 08055G103KAT1A 22 F/ 16 V Ceramic capacitor, 1206, 22 F AVX 1206YD226KAT1A 100 nF/ 25 V Ceramic capacitor, 0805, 100 nF AVX 08053G104KAT1A Jamicon SKR220M2AFBB 08051C104KAT1A 1 C6 22 F/ 100 V Electrolytic Capacitor 8.0 mm, 22 F/100 V 1 C7 100 nF/ 100 V Ceramic capacitor, 0805, 100 nF AVX 1 C8 100 nF/ 50 V Ceramic capacitor, 0805, 100 nF AVX 08055C104KAT1A 1 C9 22 F/ 16 V Ceramic Capacitor, 1206, 22 F/16 V AVX 1206YD226KAT1A 12 C10, C11, C14, C15, C19, C20, C23, C103, C105, C109, C112, C113 100 nF/50 V Ceramic capacitor, 0805, 100 nF AVX 08055C104KAT1A 1 C12 10 F/ 6.3 V Ceramic Capacitor, 1206, 10 F/6.3 V AVX 1206ZC106KAT1A 2 C13, C16 47 F/ 6.3 V Tantal Capacitor, 1206, 47 F/6.3 V AVX 12066D476KAT1A 1 C17 1.0 F/ 10 V Ceramic capacitor, 0805, 1.0 F AVX 0805ZG105ZAT1A 2 C18, C26 1.0 F/ 50 V Ceramic capacitor, 1206, 1.0 F TDK C3216X5R1H105K 1 C21 47 F/ 16 V Ceramic capacitor, 1210, 2x 22 F/16 TDK C3225X5R1C226M 1 C22 10 nF/ 50 V Ceramic capacitor, 0805, 10 nF AVX 08055G103ZAT1A 1 C24 330 pF/ 100 V Ceramic capacitor, 0805, 330 pF AVX 08055G331ZAT1A 2 C25, C102 10 nF/50 V Ceramic capacitor, 0805, 10 nF AVX 08055G102ZAT1A 1 C101 2.2 F/ 63 V Electrolytic Capacitor, 5mm, 2.2 F/ V Jamicon SKR2R2M1JFBB 2 C104, C110 2.2 F/ 25 V Ceramic Capacitor, 1206, 2.2 F/25 V AVX 12065C225KAT1A 3 C106, C107, C108 150 nF/50 V Ceramic capacitor, 0805, 150 nF AVX 08055C154KAT1A 2 C201, C202 12 nF/50 V Ceramic capacitor, 0805, 12 nF AVX 08055G120ZAT1A 1 D1 MBRD660CT Power Rectifiers ONSEMI MBRD660CTG 1 D2 MBR0520LT1 Shottky Rectifier ONSEMI MBR0520LT1G 1 D3 SM/1N4001 Standard Rectifier ONSEMI 1N4001 3 D4, D106, D107 MBRA160T3 Shottky Rectifier ONSEMI MBRA160T3G 2 D5, D7 BAS16HT1 Switching Diode ONSEMI BAS16HT1G 1 D6 MBRA120ET3 Shottky Power Rectifier ONSEMI MBRA120ET3G 6 D100, D101, D102, D103, D104, D105 MBRM140T3 Shottky Power Rectifier ONSEMI MBRM140T3G 1 J1 CON/2 screws 2-pin connector PTR Mess Technik AR500/2 14 J2, J3, J4, J5, J6, J101, J102, J103, J104, J105, J106, J107, J108, J109 EXP. HEADER 1-Way Header MOLEX 22-28-4020 1 J7 PWR Jack Power Jack type connector 2.5 mm CUI stack PJ-002A 1 J100 3-ph. Motor 3-Way Header MOLEX 39-26-3030 1 J200 UNI-3 Header 40 pins breakway connector Fisher Elektronik ASLG40G 6 J201, J202, J203, J204, J205, J206 EXP. HEADER 2-Way Header MOLEX 22-28-4020 1 LED_ON1 YELLOW 0805 LED diode yellow Chicago Miniature Lamp INC 7012x13 1 L1 TH / 100mH Inductor TDK TSL0709 -101KR66-PF 1 L2 1mH Inductor TDK SP0508-102KR19-PF KT33937UG, Rev. 2.0 18 Freescale Semiconductor Bill of Materials Table 11. Bill of Materials Qty. Reference Part Value Description Mfg. Mfg. Part No. 3 L3 TH / 220mH Inductor TDK TSL0709 -221KR44-PF 3 Q100, Q101, Q102 SI4946BEY DUAL N-channel MOSFET VISHAY Si4946BEY-T1--E3 1 R1 330R Resistor 330 , 5%, 0805 Multicomp MC 0.1W 0805 5% 330R 2 R2, R5 3.0 k Resistor 3.0 k, 5%, 0805 Multicomp MC 0.1W 0805 5% 3k 1 R3 200 k Resistor 200 k, 5%, 0805 Multicomp MC 0.1W 0805 5% 200k 1 R4 100 k Resistor 100 km, 5%, 0805 Multicomp MC 0.1W 0805 5% 100k 1 R6 68 k Resistor 68 k, 5%, 0805 Multicomp MC 0.1W 0805 5% 68k 1 R7 18 k-1% Resistor 18 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 18k 1 R8 160 k-1% Resistor 160 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 160k 1 R100 0.040-1% Resistor 0.04 , 1%, Vishay LVR03R0400FE1231 12 R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, R111, R112 51R Resistor 51 , 5%, 0805 Multicomp MC 0.1W 0805 5% 51R 6 R124, R125, R126, R127, R128, R129 10 k Resistor 10 k, 5%, 0805 Multicomp MC 0.1W 0805 5% 10k 1 R114 10 k Trimmer Vishay ST-4EG-103 1 R115 47 k -1% Resistor 47 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 47k 2 R116, R119 10 k - 1% Resistor 10 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 10k 2 R117, R123 11 k - 1% Resistor 11 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 11k 1 R118 1.8 k - 1% Resistor 1.8 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 1k8 1 R120 3.6 k - 1% Resistor 3.6 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 3k6 2 R121, R122 1.2 k - 1% Resistor 1.2 k, 1%, 0805 Multicomp MC 0.1W 0805 1% 1k2 2 R201, R202 100R Resistor 100 , 5%, 0805 Multicomp MC 0.1W 0805 5% 100R Diotec BZW06-40 1 TS1 BZW06-40 Bidirectional Transient Voltage Suppressor Diode 1 U1 LM5007 High Voltage Step Down Switching Regulator National Semiconductor LM5007MM 1 U2 MC78PC33NTR Linear Voltage Regulator ONSEMI MC78PC33NTRG 1 U3 MC33269ST-3.3T3 Voltage Regulator ONSEMI MC33269ST-3.3T3G 1 U4 LT3433IFE High Voltage DC/DC Converter Linear Technology LT3433IFE#PBF 1 U100 MC33502D Dual Operation Amplifier ONSEMI MC33502DG 1 U101 74HC04D 6 x Invertor ONSEMI MC74HC04ADG 1 U102 MC33937APEK 3-Phase FET Pre-driver Freescale MC33937APEK Freescale does not assume liability, endorse, or warrant components from external manufacturers that are referenced in circuit drawings or tables. While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their application. KT33937UG, Rev. 2.0 Freescale Semiconductor 19 Board Layouts 8 Board Layouts Figure 10. 33937A Evaluation Board Top Layer Figure 11. 33937A Evaluation Board Bottom Layer KT33937UG, Rev. 2.0 20 Freescale Semiconductor Board Layouts Figure 12. 33937A Evaluation Board Silk-screen Layer KT33937UG, Rev. 2.0 Freescale Semiconductor 21 References 9 References Table 12. Reference Pages Document Number Description URL KIT33937AEKEVBE Tool Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=KIT33937AEK EVBE MC33937 Product Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MC33937 Analog Home Page www.freescale.com/analog Freescale’s Motor Control Web Page www.freescale.com/motorcontrol Pittman’s Motors Web Page www.pittmannet.com UNI-3 Connector Specification 9.1 Support Visit Freescale.com/support for a list of phone numbers within your region. 9.2 Warranty Visit Freescale.com/warranty for a list of phone numbers within your region. KT33937UG, Rev. 2.0 22 Freescale Semiconductor Revision History 10 Revision History Revision Date 2.0 8/2014 Description of Changes • • • • Initiated revision History page Updated part number to MC33937APEK Updated back page. Updated format to current standard KT33937UG, Rev. 2.0 Freescale Semiconductor 23 How to Reach Us: Information in this document is provided solely to enable system and software implementers to use Freescale products. Home Page: freescale.com There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based Web Support: freescale.com/support Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no on the information in this document. warranty, representation, or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale data sheets and/or specifications can and do vary in different applications, and actual performance may vary over time. All operating parameters, including “typicals,” must be validated for each customer application by customer’s technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale sells products pursuant to standard terms and conditions of sale, which can be found at the following address: freescale.com/SalesTermsandConditions. Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2014 Freescale Semiconductor, Inc. Document Number: KT33937UG Rev. 2.0 8/2014