EV6509GF-00A 1.2A,18V, Bipolar Stepper Motor Driver Evaluation Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV6509GF-00A is an evaluation board for the MP6509GF, a bipolar stepper motor driver with dual, built-in full-bridges consisting of Nchannel power MOSFETs. • • It operates from a supply voltage range of 2.7V to 18V, and can deliver output current up to 1.2A per channel. The safety features include sinking and sourcing current limits implemented with external sensors, under-voltage lockout and thermal shutdown. An over-temperature output flag is available to indicate thermal shutdown. The EV6509GF-00A is a fully assembled and tested PCB. The input control signals for the MP6509GF are applied through the connector or generated on board. It can drive a bipolar stepper motor with both full step and half step mode. It also can drive two independent DC motors. • • Wide 2.7V to 18V Input Voltage Range Over-Current and Over-Temperature Indication Alternative Input Control Signals (External or Generated on Board) Four Selectable Current Attenuation Modes APPLICATIONS • • • • POS Printers Video Security Camera Battery Powered Devices USB Powered Devices All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology”, are Registered Trademarks of Monolithic Power Systems, Inc. ELECTRICAL SPECIFICATION Parameter Input Voltage Output Current Symbol Value Units VIN IOUT 2.7 – 18 1.2 V A EV6509GF-00A EVALUATION BOARD (L x W x H) 2.54” x 2.54” x 0.4” (6.35cm x 6.35cm x 1cm) Board Number MPS IC Number EV6509GF-00A MP6509GF EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 1 EV6509GF-00A – EVB DESCRIPTION EVALUATION BOARD SCHEMATIC EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 2 EV6509GF-00A – EVB DESCRIPTION EV6509GF-00A BILL OF MATERIALS Qty Ref Value 1 C1 2.2μF 2 C2,C5 0.1μF 1 C3 100µF 1 C4 10µF 6 1 1 1 R1,R2 R3,R4 R14,R15 R5 R6 R7 Description Ceramic Capacitor, 10V, X7R Ceramic Capacitor, 25V, X7R Electrolytic Capacitor, 50V, X5R Ceramic Capacitor. 50V, X7R Package Manufacturer Part Number 0603 Murata GRM188R71A225KE15D 0603 Murata GRM188R71E104KA01D DIP Jianghai 1206 Murata CD287-50V100 GRM32ER71H106KA12L 0Ω Film Resistor, 5% 0603 Royalohm 20kΩ 80.6kΩ 499Ω Film Resistor, 1% Film Resistor, 1% Film Resistor, 1% 0603 0603 0603 Yageo Yageo Yageo RC0603FR-0720KL RC0603FR-0780K6L RC0603FR-07499RL 500mΩ Film Resistor, 1% 1206 Yageo RL1206FR-070R5L SOD-123 Diodes BZT52C5V1 0805 Bright LED 6 R8,R9, R10,R11, R12,R13 1 ZD1 1 LED1 7 1 SW1-SW7 CN1 6 CN2-CN7 1 CN8 Switch (2 Bit) 10PIN, 2.54mm 3PIN, 2.54mm (with Short Jumper) 4PIN, 2.54mm 1 U1 Stepper Motor Driver Zener Diode, 5.1V, 5mA, 500mW LED. Red 0603J0000T5E BL-HUF35A-TRB SS-12D01EG4 TSSOP-20 EP MPS MP6509GF EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 3 EV6509GF-00A – EVB DESCRIPTION EVB TEST RESULTS Performance waveforms are tested on the evaluation board. VIN=12V, IOUT=1.2A, ATT1=ATT2=L, F_step=200Hz, R+L Load: L=1.5mH, R=3.3Ω, TA=25ºC, unless otherwise noted. Steady State-Full Step Steady State-Half Step Power Ramp Up-Full Step AIN1 2V/div. AIN1 2V/div. AIN1 10V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT2 10V/div. AOUT2 10V/div. AOUT2 10V/div. IOUTA 1A/div. IOUTA 1A/div. IOUTA 1A/div. Power Ramp Up-Half Step Sleep Entry-Full Step Sleep Recovery-Full Step AIN1 10V/div. SLEEP 5V/div. SLEEP 5V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT2 10V/div. AOUT2 10V/div. AOUT2 10V/div. IOUTA 1A/div. IOUTA 1A/div. IOUTA 1A/div. Sleep Recovery-Half Step Sleep Entry-Half Step 80% Current Attenuation -Full Step ATT1=H, ATT2=L SLEEP 5V/div. SLEEP 5V/div. AIN1 2V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT2 10V/div. AOUT2 10V/div. AOUT2 10V/div. IOUTA 1A/div. IOUTA 1A/div. IOUTA 1A/div. EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 4 EV6509GF-00A – EVB DESCRIPTION EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN=12V, IOUT=1.2A, ATT1=ATT2=L, F_step=200Hz, R+L Load: L=1.5mH, R=3.3Ω, TA=25ºC, unless otherwise noted. 80% Current Attenuation -Half Step 50% Current Attenuation -Full Step 50% Current Attenuation -Half Step ATT1=H, ATT2=L ATT1=L, ATT2=H ATT1=L, ATT2=H AIN1 2V/div. AIN1 2V/div. AIN1 2V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT2 10V/div. AOUT2 10V/div. AOUT2 10V/div. IOUTA 1A/div. IOUTA 500mA/div. IOUTA 500mA/div. 20% Current Attenuation -Full Step 20% Current Attenuation -Half Step ATT1=H, ATT2=H ATT1=H, ATT2=H AIN1 2V/div. AIN1 2V/div. AOUT1 10V/div. AOUT1 10V/div. AOUT2 10V/div. AOUT2 10V/div. IOUTA 200mA/div. IOUTA 200mA/div. EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 5 EV6509GF-00A – EVB DESCRIPTION PRINTED CIRCUIT BOARD LAYOUT Figure 1—Top Silk Layer Figure 2—Top Layer Figure 3—Bottom Layer EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 6 EV6509GF-00A – EVB DESCRIPTION QUICK START GUIDE 1. The power and control signals for the MP6509GF are applied through the connector CN1. Each pin in the connector is labeled on the EVB. The control signals of AIN1, AIN2, BIN1 and BIN2 can be generated on board too. Refer the jumpers section (item5) for detailed information. The connector CN1 also outputs the FAULT signal and VDD (5V) from the IC. 2. Preset power supply of 2.7V to 18V between VIN and GND pins on CN1 or external VIN and GND terminals. 3. The connector CN6 should be connected to the motor winding terminals. Each pin in the connector is labeled on the EVB as AOUT1, AOUT2, BOUT1 and BOUT2. The polarity of these connections will affect the direction of the motor in the case of a DC motor. As for a stepper motor, one winding should be connected to AOUT1 and AOUT2, while the other should be connected to BOUT1 and BOUT2. 4. If the SW5 is switched to the VIN position, SLEEP pin will be pulled up to the VIN by a voltage divider resistor. This ensures the part doesn’t enter the SLEEP mode. If the SLEEP mode is controlled externally through any controller, then switches the SW5 to VSLP position and connects the SLEEP control signal from the external controller directly to the VSLP terminal. 5. Jumpers CN2, CN3, CN4, CN5, CN6 and CN7 are used to select the source of the control signals AIN1, AIN2, BIN2, BIN1, ATT1 and ATT2 respectively. By placing a shunt between positions 1-2, the source of the control signals are routed to the connector CN1. This connection allows the user to control these signals through an external controller. If the shunt is placed between positions 2-3, the source of the control signals are routed to the switches SW1, SW2, SW3, SW4, SW6 and SW7. These switches can be used to control the state of these input control signals. The state of the motor outputs for various input combinations can be inferred from the MP6509 datasheet. 6. The diode LED1 indicates the status of the FAULT pin. When over-current or over-temperature protection happens, FAULT pin is pulled down to a low level and this LED lights up. 7. R8-R10, R11-R13 are the current sense resistors directly connected to SENA and SENB respectively. The other sides of these resistors are connected to GND. These resistors control the current through the MP6509 to be 1.2A per channel. To change this value of output current, the resistor value must be changed according to the following formula: Ι lim − Α = 200mV R8 // R9 // R10 Ι lim −Β = 200mV R11 // R12 // R13 NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV6509GF-00A Rev.1.0 www.MonolithicPower.com 12/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 7