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User's Guide
SLOU319A–August 2011–Revised December 2012
DRV8662 Piezo Haptics Driver Evaluation Module
This DRV8662EVM user guide provides instructions for using the DRV8662EVM evaluation module
(EVM). The DRV8662EVM features the fully-differential, high-voltage DRV8662 driver that provides fast
response times and complete control for piezo loads. The DRV8662EVM can be used in-system or as a
stand-alone module for complete evaluation of the DRV8662 driver.
Figure 1. DRV8662EVM
Contents
1 Introduction .................................................................................................................. 3
1.1 DRV8662RGP EVM Operating Specifications ................................................................. 3
2 Quick Start for Stand-Alone Operation ................................................................................... 3
2.1 Powering the Board ................................................................................................ 3
2.2 Connecting a Load ................................................................................................. 4
2.3 Output Waveforms ................................................................................................. 4
3 General Operation .......................................................................................................... 4
3.1 Power ................................................................................................................ 4
3.2 Boost Converter .................................................................................................... 5
3.3 Input Modes ......................................................................................................... 7
3.4 Programming the MSP430 ........................................................................................ 9
3.5 Filtering and Adapting PWM Waveforms ...................................................................... 10
3.6 Output .............................................................................................................. 14
4 Reference ................................................................................................................... 14
4.1 Schematic ......................................................................................................... 15
4.2 PCB Layout ........................................................................................................ 16
4.3 Bill Of Materials ................................................................................................... 19
5 Related Documentation From Texas Instruments ..................................................................... 21
List of Figures
I
2
C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
1
SLOU319A–August 2011–Revised December 2012 DRV8662 Piezo Haptics Driver Evaluation Module
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Copyright © 2011–2012, Texas Instruments Incorporated
Verzeichnis
- ・ Blockdiagramm on Seite 15
- ・ Technische Daten on Seite 3
- ・ Anwendungsbereich on Seite 25 Seite 26
