The DRV2665 is a piezo haptic driver with integrated 105 V boost switch, integrated power diode, integrated fully-differential amplifier, and integrated digital front end. This versatile device is capable of driving both high-voltage and low-voltage piezo haptic actuators. The input signal can be driven as haptic packets over the I²C port or via the analog inputs.

The DRV2665 digital interface is available via an I²C compatible bus. A digital interface relieves the costly processor burden of PWM generation or additional analog channel requirements in the host system. Any writes to the internal first-in, first-out buffer (FIFO) will automatically wake up the device and begin playing the waveform after the 2 ms internal startup procedure. When the data flow stops or the FIFO under-runs, the DRV2665 will automatically enter a pop-less shutdown procedure.

The boost voltage is set using two external resistors, and the boost current limit is programmable via the R_EXT resistor. A typical start-up time of 2 ms makes the DRV2665 an ideal piezo driver for fast haptic responses. Thermal overload protection prevents the device from being damaged when overdriven.

• Integrated Digital Front End
  • I2C Bus Control up to 400 kHz
  • Internal 100 Byte FIFO Interface
  • Immersion TS5000 Compliant
  • Optional Analog Inputs
• High Voltage Piezo-Haptic Driver
  • Drives up to 100 nF at 200 VPP and 300 Hz
  • Drives up to 150 nF at 150 VPP and 300 Hz
  • Drives up to 330 nF at 100 VPP and 300 Hz
  • Drives up to 680 nF at 50 VPP and 300 Hz
  • Differential Output
• Integrated 105 V Boost Converter
  • Adjustable Boost Voltage
  • Adjustable Boost Current Limit
  • Integrated Power FET and Diode
  • No Transformer Required
• Fast Start Up Time of 2 ms (typical)
• Wide Supply Voltage Range of 3 V to 5.5 V
• 1.8 V Compatible, VDD Tolerant Digital Pins
• Available in a 4 mm × 4 mm × 0.9 mm QFN package (RGP)
• Pin-Similar with DRV8662

• Haptic actuator type
• Piezo
• Input signal
• I2C, PWM, Analog
• Vs (Min) (V)
• 3
• Vs (Max) (V)
• 5.5
• Output voltage (Max) (V)
• 200
• Vout (Max) (V p-p)
• 200
• Iq (Typ) (mA)
• 5
• Shutdown current (uA)
• 10
• Startup time (ms)
• 2
• Operating temperature range (C)
• -40 to 70
• Rating
• Catalog

DRV2665的完整型号有：DRV2665RGPR、DRV2665RGPT，以下是这些产品的关键参数及官网采购报价：

DRV2665RGPR，工作温度：-40 to 70，封装：QFN (RGP)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-4-260C-72 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV2665RGPR的批量USD价格：1.863（1000+）

DRV2665RGPT，工作温度：-40 to 70，封装：QFN (RGP)-20，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-4-260C-72 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV2665RGPT的批量USD价格：2.236（1000+）

DRV2665SW-LINUX — 用于 DRV2665 的 Linux 驱动程序

Linux 驱动程序支持 DRV2665 触觉电机驱动器。Linux 驱动器支持通过 I2C 总线进行的通信，并与输入子系统连接，从而实现强制反馈响应。

Linux 主线状态

在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用

支持的器件:

• DRV2665

Linux 源文件

main C 源文件位于：drivers/input/misc

与该器件关联的文件为：

drivers/input/misc/drv2665.c

Documentation/devicetree/bindings/input/ti,drv2665.txt

源文件

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DRV2665 TINA-TI Reference Design

The DRV8662/DRV2665/DRV2667 Design Equation document assists the user in the design phase by calculating the driver hardware configuration based off of user-defined input parameters. The DRV8662/2665/2667 is a piezo haptic driver with integrated 105 V boost switch, integrated power diode, and (...)