DRV8601ZQVEVM

User's Guide SLOU296A – July 2010 – Revised October 2011 DRV8601ZQVEVM ERM/LRA Driver Evaluation Module The DRV8601 ERM/LRA driver evaluation module is a complete, low-power and ultra-fast turn-on driver for Eccentric Rotating Mass (ERM) and Linear Resonant Actuator (LRA) types of haptic actuators. All components and the evaluation module are Pb-free. The evaluation module (EVM) consists of a DRV8601ZQV device and all necessary components to evaluate it. 1 2 3 4 Contents Introduction .................................................................................................................. Operation ..................................................................................................................... Reference .................................................................................................................... Related Documentation From Texas Instruments ...................................................................... 1 1 3 5 List of Figures 1 Top Layer .................................................................................................................... 3 2 Bottom Layer 3 DRV8601ZQVEVM Schematic Diagram ................................................................................. 4 ................................................................................................................ 3 List of Tables 1 1 Configuration Settings ...................................................................................................... 2 2 DRV8601ZQVEVM Parts List ............................................................................................. 5 Introduction This section provides an overview of the Texas Instruments (TI) DRV8601 ERM/LRA driver evaluation module (DRV8601ZQVEVM). It includes a description of the module and a list of EVM specifications. 1.1 DRV8601ZQVEVM Specifications Operation at room temperature assumed. 2 Supply voltage range, VDD 2.5 V to 5.5 V Power supply current rating required 2.5 A Input voltage, VI 0 V-VDD Minimum load impedance, ZL 6.4 Ω Maximum continuous output current 400 mA Operation This section describes how to operate the DRV8601ZQVEVM. 2.1 Quick Start for Stand-Alone Operation Use the following steps when operating the DRV8601ZQVEVM stand-alone or when connecting it to existing circuits or equipment. SLOU296A – July 2010 – Revised October 2011 Submit Documentation Feedback DRV8601ZQVEVM ERM/LRA Driver Evaluation Module Copyright © 2010–2011, Texas Instruments Incorporated 1 Operation 2.1.1 www.ti.com Initial Configuration The DRV8601ZQVEVM can be operated in two configurations. For a detailed description of each configuration, see the DRV8601ZQV data sheet. 1. Pseudo-Differential Feedback with Internal Reference - used when VDD is equal to the maximum IN voltage 2. Differential Feedback with External Reference - used when VDD is not equal to the maximun IN voltage Table 1 describes how to modify the DRV8601ZQVEVM for the two configurations. Note that the voltages listed (IN, REFIN, and VDD) must be used for proper operation. If alternate voltages are required, see the data sheet to select different passive components. Table 1. Configuration Settings No. (1) 2.1.2 Configuration JP1 R4 C4 R5 C5 R1 R2 R6 IN VMAX REFIN VDD 49.9 k - - 3.3V N/A 3.3V 27.4 k 53.6 k 53.6 k 1.8 V 1.8V 3.3V 1 Pseudo-Differential Feedback with Internal Reference 2-3 100k 0.01 µF (1) DNP DNP 2 Differential Feedback with External Reference (GAIN = 3.7 V/V) 1-2 100 k 0.01 µF (1) 100 k 0.01 µF (1) Choose C4 to set the corner frequency according to the equation f3dB = 1 / (2 × π × R4 x C4). For configuration two, choose R5 = R4 and C5 = C4. Power and Ground For all three configurations: 1. Set the voltage of an external power supply between 2.5 V and 5.5 V and turn it OFF. 2. Attach the ground connection of the power supply to the GND header pin of the EVM, and then connect the positive supply to the VDD header pin. Verify that the connections are made to the correct header pins. 2.1.3 Inputs and Outputs 2.1.3.1 1. 2. 3. Vibration Input Make sure that the signal source is set to the minimum level. Connect the signal source to the IN header pin on the EVM. Connect the actuator (ERM or LRA) between OUT+ and OUT–. 2.1.3.2 Enable Settings The DRV8601ZQV has an active high enable pin EN. A high value on this pin places the device in the operating mode, and a low value on this pin places it in the shutdown mode. Press and hold pushbutton S1 to place the DRV8601ZQVEVM in the shutdown mode. Release pushbutton S1 to restart normal operation. 2.1.3.3 Gain Settings DC gain of the device is given by 2×R4/R1 for the pseudo-differential configurations, and R4/R1 for the differential configuration. R5, when used, must be well matched with R4 for proper performance. The DRV8601ZQVEVM is pre-configured for a pseudo-differential gain of 4 V/V and a differential gain of 2V/V. 2.2 Power Up 1. Verify the correct connections as described in Sections 2.1. 2. Verify the voltage setting of the power supply is between 2.5 V and 5.5 V, and turn on the power supply. Proper operation of the EVM begins. 3. Adjust the audio signal source as needed. 2 DRV8601ZQVEVM ERM/LRA Driver Evaluation Module SLOU296A – July 2010 – Revised October 2011 Submit Documentation Feedback Copyright © 2010–2011, Texas Instruments Incorporated Reference www.ti.com (a) For LRAs, drive a PWM signal at the resonant frequency of the LRA. ensure that the low-pass corner frequency is beyond the resonant frequency of the LRA. (b) For ERMs, drive a PWM signal below 30 kHz. 3 Reference This section includes the EVM PCB layout reference, schematic, and parts list. 3.1 DRV8601ZQVEVM PCB Layers Figure 1. Top Layer Figure 2. Bottom Layer SLOU296A – July 2010 – Revised October 2011 Submit Documentation Feedback DRV8601ZQVEVM ERM/LRA Driver Evaluation Module Copyright © 2010–2011, Texas Instruments Incorporated 3 Reference 3.2 www.ti.com DRV8601ZQVEVM Schematic Diagram Vdd VDD R1 Red IN 49.9K 0402 Orange GND C1 C2 10ufd/10V 0603 0.1ufd/6.3V 0402 GND Black Black GND GND JP1 49.9K 0402 2 3 R2 49.9K 0402 IN1 C3 IN2 C2 REFOUT C1 EN B1 A3 VDD REFIN Orange U1 1 IN1 IN2 REFOUT VO+ GND R6 EN DRV8601ZQV VO- B3 VO+ A1 VO- Orange OUT+ 1 2 OUT OUTOrange B2 WCSP8-ZQV GND GND C3 Vdd R4 1000pfd/16V 0402 R3 GND 100K 0402 S1 100K 0402 C4 0.01ufd/16V 0402 GND R5 DNP 0402 C5 DNP 0402 Figure 3. DRV8601ZQVEVM Schematic Diagram 4 DRV8601ZQVEVM ERM/LRA Driver Evaluation Module SLOU296A – July 2010 – Revised October 2011 Submit Documentation Feedback Copyright © 2010–2011, Texas Instruments Incorporated Related Documentation From Texas Instruments www.ti.com 3.3 DRV8601ZQVEVM Evaluation Module Parts List Table 2. DRV8601ZQVEVM Parts List Item MANU Part No. QTY REF DES Vendor Part No. Description Vendor MANU Texas Instruments Texas Instruments TI-SEMICONDUCTORS 1 DRV8601ZQV Item MANU Part No. 2 CC0402KRX7R7BB102 3 1 U1 DRV8601ZQV 400mA DRIVER FOR DC MOTORS AND LINEAR VIBRATORS WCSP8-ZQV ROHS REF DES Vendor Part No. Description Vendor MANU 1 C3 311-1352-1 CAP SMD0402 CERM 1000pfd 16V 10% X7R ROHS DIGI-KEY Yageo 0402YC103KAT2A 1 C4 478-1114-1 CAP SMD0402 CERM 0.01ufd 16V 10% X7R ROHS DIGI-KEY AVX 4 C1005X5R0J104K 1 C2 445-1266-1 CAP SMD0402 CERM 0.1UFD 6.3V 10% X5R ROHS DIGI-KEY TDK Corp 5 ECJ-1VB1A106M 1 C1 PCC2479CT CAP SMD0603 CERM 10UFD 10V 20% X5R ROHS DIGI-KEY Panasonic Item MANU Part No. QTY REF DES Vendor Part No. Description Vendor MANU 6 ERJ-2RKF4992X 3 R1, R2, R6 P49.9KLCT RESISTOR SMD0402 THK FLM 49.9K 1/16W 1% ROHS DIGI-KEY Panasonic 7 ERJ-2RKF1003X 2 R3, R4 P100KLCT RESISTOR SMD0402 THK FLM 100K 1/16W 1% ROHS DIGI-KEY Panasonic Item MANU Part No. QTY REF DES Vendor Part No. Description Vendor MANU 8 PBC02SAAN 1 OUT S1011E-02 HEADER THRU MALE 2 PIN 100LS GOLD ROHS DIGI-KEY SULLINS 9 PBC03SAAN 1 JP1 S1011E-03 HEADER THRU MALE 3 PIN 100LS GOLD ROHS DIGI-KEY SULLINS Item MANU Part No. REF DES Vendor Part No. Description Vendor MANU 10 5000 1 VDD 5000K PC TESTPOINT, RED, ROHS DIGI-KEY Keystone Electronics 11 5001 2 GNDx2 5001K PC TESTPOINT, BLACK, ROHS DIGI-KEY Keystone Electronics 12 5003 4 IN, OUT+, OUT–, REFIN 5003K PC TESTPOINT, ORANGE, ROHS DIGI-KEY Keystone Electronics 13 TL1015AF160QG 1 S1 EG4344CT SWITCH, MOM, 160G SMT 4X3MM ROHS DIGI-KEY E-SWITCH Item MANU Part No. REF DES Vendor Part No. Description Vendor MANU 14 SPC02SYAN 1 JP1 S9001 SHUNT, BLACK AU FLASH 0.100LS DIGI-KEY SULLINS Component Count: 21 CAPACITORS QTY RESISTORS HEADERS AND JACKS TESTPOINTS AND SWITCHES QTY SHUNTS QTY COMPONENTS NOT ASSEMBLED C5, R5 4 Related Documentation From Texas Instruments • DRV8601 data sheet (SLOS629): Driver for DC Motors (ERMs) and Linear Vibrators (LRAs) with Ultra-Fast Turn-On. SLOU296A – July 2010 – Revised October 2011 Submit Documentation Feedback DRV8601ZQVEVM ERM/LRA Driver Evaluation Module Copyright © 2010–2011, Texas Instruments Incorporated 5 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. 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EVM Warnings and Restrictions It is important to operate this EVM within the input voltage range of 2.5 V to 5 V and the output voltage range of 0 V to 5.5 V . Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures greater than 60°C. The EVM is designed to operate properly with certain components above 60°C as long as the input and output ranges are maintained. 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