DRV2605LDGSEVM-M

User's Guide SLOU396 – August 2014 DRV2605LDGS Haptic Driver Mini Board The DRV2605L is a haptic driver designed for linear resonant actuators (LRA) and eccentric rotating mass (ERM) motors. It provides many features, which help eliminate the design complexities of haptic motor control including: • Reduced solution size • High-efficiency output drive • Closed-loop motor control • Quick device startup • Embedded waveform library • Auto-resonance frequency tracking The DRV2605LDGSEVM-M is a breakout board that allows the user to gain access to each pin of the MSOP package type for quick evaluation of haptic driver. The board must be paired with a processor, microcontroller, MSP430 launchpad, or a DRV2605LEVM-CT to control the driver through I2C commands. The user guide contains instructions to setup and operate the DRV2605LDGSEVM-M. Evaluation Kit Contents: • DRV2605LDGSEVM-M breakout board SLOU396 – August 2014 Submit Documentation Feedback DRV2605LDGS Haptic Driver Mini Board Copyright © 2014, Texas Instruments Incorporated 1 Overview 1 www.ti.com Overview The DRV2605LDGSEVM-M is a breakout board that allows the user to have access to all of the pins on the DRV2605L MSOP package type. Figure 1 shows the pin out of the part. NOTE: The pin out of the part does not correspond directly to the pin out of the headers. VREG is replaced by VIO on the headers. All other header pins correspond to part pin out. The board includes decoupling capacitors of 1 µF on the VBAT and VREG pins. The 50 mil pitched headers and resistors R1 and R2 are not populated. Resistor pads R1 and R2 are included on the SCL and SDA lines if I2C pullup resistors are required. The I2C pullup voltage level must be applied to the VIO header pin and match the IO voltage of the host processor or microcontroller. To operate the DRV2605L, it must be paired with a processor, microcontroller, MSP430 launchpad, or a DRV2605LEVM-CT. 1 VREG VBAT 10 2 SCL OUTP 9 3 SDA GND 8 4 IN OUTM 7 5 EN VBAT 6 DRV2605LDGSEVM-M - Figure 1. Pin Out of the DRV2605LDGSEVM-M 2 Typical Application The typical application for a haptic driver is in a touch-enabled system that already has an application processor which makes the decision on when to execute haptic effects. The DRV2605L device can be used fully with I2C communications (either using RTP or the memory interface). A system designer can chose to use external triggers to play low-latency effects (such as from a physical button) or can decide to use the PWM interface. Figure 2 shows a typical haptic system implementation. The system designer should not use the internal regulator (REG) to power any external load. The gray dashed box represents the components that are already integrated on to the DRV2605LDGSEVM-M. NOTE: The pull-up resistors R1 and R2 are not populated but can be added to the DRV2605LDGSEVM-M if there are no other pull-up resistors on the I2C bus lines in the system. DRV2605LDGSEVM-M VIO VIO DRV2605L Application Processor R(pu) R(pu) OUTP SCL SCL REG SDA SDA OUTM GPIO PWM/GPIO IN VDD EN GND C(REG) M LRA or ERM C(VDD) part pin labels Figure 2. I2C Control with Optional PWM Input or External Trigger 2 DRV2605LDGS Haptic Driver Mini Board Copyright © 2014, Texas Instruments Incorporated SLOU396 – August 2014 Submit Documentation Feedback Setup and Operation with a DRV2605LEVM-CT www.ti.com 3 Setup and Operation with a DRV2605LEVM-CT This section describes how to setup and operate the DRV2605LDGSEVM-M with the DRV2605LEVM-CT board. The "non-L" version of the EVM-CT boards can be used in place of the "L" version but the firmware needs to be updated to the "L" version. Figure 3 shows the connection of the breakout board to the DRV2605LEVM-CT board. Header Pinout VIO VBAT SCL OUTP SDA GND IN OUTM EN Actuator + Actuator- VBAT DRV2605LDGSEVM-M SDA SCL GND 3.3V PWM EN GND REF J2 DRV2605LEVM-CT Figure 3. DRV2605LDGSEVM-M Connection to DRV2605LEVM-CT 1. Connect the DRV2605LDGSEVM-M to the DRV2605LEVM-CT with IC test hook lead cables as shown in Figure 3. If VIO header pin is not being used, it can be left floating. Connect a separate actuator to the OUTP and OUTM headers of the DRV2605LDGSEVM-M. 2. Make sure that the DRV2605LEVM-CT has the jumpers connected properly as shown in Table 1. 3. Connect the mini-USB cable to the USB connector on the DRV2605LEVM-CT board. 4. Connect the other end of the USB cable to an available USB port on a computer. 5. If the DRV2605LEVM-CT is powered correctly, the four colored LEDs will turn on, the four mode LEDs will flash, and the LRA and ERM will perform auto-calibration, indicating the board has been successfully initialized. 6. Next, press buttons B1, B2, B3, and B4 observe that there is a different vibration on each. 7. If the vibrations are felt on the separate actuator (coming off from the EVM-M), then the breakout board is working properly. SLOU396 – August 2014 Submit Documentation Feedback DRV2605LDGS Haptic Driver Mini Board Copyright © 2014, Texas Instruments Incorporated 3 Bill of Materials www.ti.com Table 1. Default Jumper Settings JUMPER DEFAULT POSITION JP1 Shorted Connect MSP430 GPIO or PWM output to DRV2605L IN/TRIG DESCRIPTION JP2 Shorted 3.3V – reference for I2C JP3, JP4 Shorted Connect on-board actuators to DRV2605L MSP USB to MSP Select USB (5V) or VBAT power for the MSP430 DRV USB to DRV Select USB (5V) or VBAT power for the DRV2605L To program the DRV2605LEVM-CT and to gain more information on the demonstration and advanced featured modes that is possible with the DRV2605LEVM-CT. 4 Bill of Materials Table 2. DRV2605L BOM 5 Designator Quantity Value Part Number Description C1, C2 2 1uF C1005X5R1E105K050BC CAP, CERM, 1uF, 25V, +/-10%, X5R, 0402 U1 1 DRV2605LDGS J1, J2 0 R1, R2 0 3.3k Package Manufacturer 0402 TDK DRV2605LDGS, DGS0010A DGS0010A Texas Instruments GRPB051VWVN-RC Header, 5x1, 50mil, Gold,TH Header, 50mil, 5x1, TH Sullins Connector Solutions CRCW04023K30JNED RES, 3.3k ohm, 5%, 0.063W, 0402 0402 Vishay-Dale Schematic J1 VIO SCL SDA IN EN J2 VBAT OUTM GND OUTP VBAT 1 2 3 4 5 1 2 3 4 5 VBAT C1 1µF VIO R1 3.3k R2 3.3k U1 10 6 GND SCL 2 SDA 3 IN 4 EN 5 VDD OUT+ VDD/NC OUT- 7 OUTP 9 OUTM SCL SDA REG 1 VREG IN/TRIG EN GND DRV2605LDGS C2 1µF 8 GND GND Figure 4. Schematic for the DRV2605LDGSEVM-M 4 DRV2605LDGS Haptic Driver Mini Board Copyright © 2014, Texas Instruments Incorporated SLOU396 – August 2014 Submit Documentation Feedback Layout www.ti.com 6 Layout Figure 5. Top Silkscreen (Yellow), Top (Red), and Bottom (Blue) Layers SLOU396 – August 2014 Submit Documentation Feedback DRV2605LDGS Haptic Driver Mini Board Copyright © 2014, Texas Instruments Incorporated 5 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1. User agrees and acknowledges that EVMs are intended to be handled and used for feasibility evaluation only in laboratory and/or development environments. Notwithstanding the foregoing, in certain instances, TI makes certain EVMs available to users that do not handle and use EVMs solely for feasibility evaluation only in laboratory and/or development environments, but may use EVMs in a hobbyist environment. 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