SLOA198A September 2014 – December 2021 DRV2665 , DRV2667 , DRV2700 , DRV8662
- Trademarks
- 1 Boost Converter Basics
- 2 DRV8662, DRV2700, DRV2665, and DRV2667 Boost Converter
- 3 Configuring the Boost Converter
- 4 Boost Converter Output Voltage
- 5 Calculating the Load Current
- 6 Selecting an Inductor
- 7 Calculate the Maximum Boost Current
- 8 Output Capacitor Selection
- 9 Input Capacitor Selection
- 10PCB Layout
- 11Examples
- 12Revision History
11.2 Example: Based on the DRV2667EVM-CT with 25-nF Piezo Module
The DRV2667EVM-CT is the evaluation module for the DRV2667 high-voltage piezo haptic driver with digital front-end. The kit includes all the components to evaluate and test the DRV2667 including a Piezo haptics module manufactured by Samsung Electric and Mechanical.
Figure 11-4 is a simplified version of the DRV2667EVM-CT schematic.
Figure 11-4 Simplified Version of the DRV2667EVM-CT SchematicThe following table contains the primary components of the design:
| Reference Designator | Value | Manufacturer Part # | Manufacturer |
|---|---|---|---|
| L1 | 3.3 µH / 1.1 ASAT | VLS3010ET-3R3M | TDK |
| Piezo Actuator | 25 nF at 150 V, 200 Hz | PHAT423535XX | SEMCO |
The full design documents including the schematic, layout, and BOM, can be found in the DRV2667EVM-CT User’s Guide (SLOU323).