●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 REXT 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
