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DRV8662

ACTIVE

Haptic driver for piezo with integrated 105-V boost converter in QFN package

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Data sheet

DRV8662

ACTIVE
Data sheet Order now

Product details

Features Adjustable current limit, Enable Haptic actuator type Piezo Input signal Analog, PWM Output voltage (max) (V) 100 Shutdown current (ISD) (µA) 13 Startup time (ms) 1.5 Vs (max) (V) 5.5 Vs (min) (V) 3 Operating temperature range (°C) -40 to 70 Rating Catalog
Features Adjustable current limit, Enable Haptic actuator type Piezo Input signal Analog, PWM Output voltage (max) (V) 100 Shutdown current (ISD) (µA) 13 Startup time (ms) 1.5 Vs (max) (V) 5.5 Vs (min) (V) 3 Operating temperature range (°C) -40 to 70 Rating Catalog
VQFN (RGP) 20 16 mm² (4 mm × 4 mm)
  • High-Voltage Piezo Haptic Driver
    • Drives up to 100 nF at 200 V PP and 300 Hz
    • Drives up to 150 nF at 150 V PP and 300 Hz
    • Drives up to 330 nF at 100 V PP and 300 Hz
    • Drives up to 680 nF at 50 V PP and 300 Hz
    • Differential Output
  • Integrated Boost Converter
    • Adjustable Boost Voltage
    • Adjustable Current Limit
    • Integrated Power FET and Diode
    • No Transformer Required
  • Fast Start Up Time of 1.5 ms
  • Wide Supply Voltage Range of 3.3 V to 5.5 V
  • 1.8 V Compatible Digital Pins
  • Thermal Protection
  • Available in a 4 mm × 4 mm × 0.9 mm QFN package (RGP)
  • High-Voltage Piezo Haptic Driver
    • Drives up to 100 nF at 200 V PP and 300 Hz
    • Drives up to 150 nF at 150 V PP and 300 Hz
    • Drives up to 330 nF at 100 V PP and 300 Hz
    • Drives up to 680 nF at 50 V PP and 300 Hz
    • Differential Output
  • Integrated Boost Converter
    • Adjustable Boost Voltage
    • Adjustable Current Limit
    • Integrated Power FET and Diode
    • No Transformer Required
  • Fast Start Up Time of 1.5 ms
  • Wide Supply Voltage Range of 3.3 V to 5.5 V
  • 1.8 V Compatible Digital Pins
  • Thermal Protection
  • Available in a 4 mm × 4 mm × 0.9 mm QFN package (RGP)

The DRV8662 is a single-chip piezo haptic driver with integrated 105 V boost switch, integrated power diode, and integrated fully-differential amplifier. This versatile device is capable of driving both high-voltage and low-voltage piezo haptic actuators. The input signal can be either differential or single-ended. The DRV8662 supports four GPIO-controlled gains: 28.8 dB, 34.8 dB, 38.4 dB, and 40.7 dB.

The boost voltage is set using two external resistors, and the boost current limit is programmable via the R EXT resistor. The boost converter architecture will not allow the demand on the supply current to exceed the limit set by the R EXT resistor; therefore, the DRV8662 is well-suited for portable applications. This feature also allows the user to optimize the DRV8662 circuit for a given inductor based on the desired performance requirements.

A typical start-up time of 1.5 ms makes the DRV8662 an ideal piezo driver for fast haptic responses. Thermal overload protection prevents the device from being damaged when over driven.

The DRV8662 is a single-chip piezo haptic driver with integrated 105 V boost switch, integrated power diode, and integrated fully-differential amplifier. This versatile device is capable of driving both high-voltage and low-voltage piezo haptic actuators. The input signal can be either differential or single-ended. The DRV8662 supports four GPIO-controlled gains: 28.8 dB, 34.8 dB, 38.4 dB, and 40.7 dB.

The boost voltage is set using two external resistors, and the boost current limit is programmable via the R EXT resistor. The boost converter architecture will not allow the demand on the supply current to exceed the limit set by the R EXT resistor; therefore, the DRV8662 is well-suited for portable applications. This feature also allows the user to optimize the DRV8662 circuit for a given inductor based on the desired performance requirements.

A typical start-up time of 1.5 ms makes the DRV8662 an ideal piezo driver for fast haptic responses. Thermal overload protection prevents the device from being damaged when over driven.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet DRV8662 Piezo Haptic Driver with Integrated Boost Converter datasheet (Rev. C) PDF | HTML Oct 18, 2022
Application note DRV8662, DRV2700, DRV2665, and DRV2667 Configuration Guide (Rev. A) PDF | HTML Dec 8, 2021
Product overview Automotive Haptics Solutions Sep 16, 2013
Analog design Journal High-definition haptics: Feel the difference! Jul 17, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DRV8662EVM — DRV8662 Evaluation Module

The DRV8662EVM Evaluation Module (EVM) is a fully-differential, high-voltage piezo actuator driver that provides quick response time for single layer and multi-layer piezo actuators. The DRV8662 drives piezo loads up to 200V differentially using an adjustable integrated boost converter. The (...)
User guide: PDF
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Simulation model

DRV8662 TINA-TI Spice Model

SLOM224.ZIP (21 KB) - TINA-TI Spice model
Supported products & hardware
Calculation tool

SLOR113 — DRV8662, DRV2665, and DRV2667 Design Equations

DRV8662, DRV2665, and DRV2667 Design Equations
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGP) 20 Ultra Librarian
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