Features
- 360nA idle power mode with full I2C control and memory retention
- Wideband LRA driver: 25Hz to 1kHz with resonant mode
- Frequency tracking support up to 300Hz
- Low-latency direct drive for haptics
- On-the-fly diagnostics
- Custom waveform sequences
- Three methods of drive with Linux and C-like driver (HAL)
- Packages:
- WLCSP-12 (0.4mm pitch)
- QFN-12 (0.65mm pitch)
Description
The DA7280 high-definition (HD) haptic driver combines custom drive sequences, on- and off-resonance, at up to 1kHz. The DA7280 can drive both ERM and LRA (narrow and wideband) actuators and track resonance up to 300Hz to drive the most complex click/vibration touch effects in a wide range of applications.
The DA7280 combines very low idle current consumption (360nA) with low-latency trigger inputs to minimize the delay after button presses when an application process is in deep sleep.
Benefits
- Constant resonance frequency tracking through continuous current drive monitoring
- Ultra-low power consumption means longer battery life
- Only 0.75ms latency when responding from ultra-low power state
- Drives LRAs off-resonance for custom effects, or dual-resonant systems for two-dimensional vibration
- Enables wide-band effects as well as supporting dual-resonant systems
- Drives distinct haptic effects triggered by multiple inputs without the need to wake the apps processor
- Detects issues with motor automatically
- Frequency, time, amplitude triplets to program the waveform
- Quick and easy software development using the SmartCanvas™ GUI
Parameters
| Attributes | Value |
|---|---|
| Target applications | Smartphones, Gaming, Wearables, Automotive, Personal Medical, Touch Displays, Industrial Human-Machine Interfaces |
Application Block Diagrams
 | Metal Capacitive Touch Panel with NFC for Elevator & HMI Elevator control system with sleek capacitive metal touch, CAN FD reliability, and NFC security for a premium, safe, user‑friendly experience. |
 | Capacitive Touch Remote Controller Sleek, buttonless remote controller with touch gestures and Bluetooth for smart home control. |
 | Heatstroke Prevention Watch A low-power wearable detects heatstroke risks and alerts users to take early action. |
 | Human Machine Interface (HMI) for Appliances Customizable HMI system for smart appliances with display, touch, voice, and NFC options. |
 | Smart HMI System with Voice & Display Interfaces Smart HMI system with 32-bit MCU supports GUI, voice I/O, IoT connectivity, and fast development tools. |
 | Access Control System with NFC, Camera, and Capacitive Touch Authentication The access control system ensures security with NFC, Wi-Fi, PoE, local storage, and flexible OS support. |
 | Multi-Functional Cordless Drill with Wire Detection Cordless drill design with IoT enables wire detection, Bluetooth control, adjustable angles, and enhanced visibility. |
 | Smart Lock with Ultra-Low Power Wi-Fi & Bluetooth Low Energy Low-power smart lock system enabling secure, wireless control with fingerprint support. |
Additional Applications
- Smartphone
- Gaming
- Wearables
- Portable computing systems (POS, barcode scanners, etc.)
- Computing – All-in-ones (display), notebook PCs
- Any display driven consumer product
- Automotive
- Industrial
- Medical
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Renesas Boards & Kits
Low Power High-Definition Haptic Driver Evaluation Kit
The DA728x-EVAL-KIT is designed to evaluate the DA7280x family of high-definition (HD) haptic drivers. The board is powered and controlled from the onboard USB circuitry and consists of a DA728x motherboard, DA7280 daughtercard, DA7281 daughtercard, DA7282 daughtercard, and DA7283 daughtercard.... Read More
Low-Power High-Definition Haptic Driver for Next Generation Human-Machine Interfaces Evaluation Board
The US082-DA7280EVZ evaluation board enables quick prototyping for a custom system design with the DA7280 ultra-low power haptic driver. The board provides a standard Pmod™ Type 6A (extended I2C) connection for the on-board motor driver to plug into any MCU evaluation kit with a matching... Read More
DA7280 Performance Board
Use the DA7280 Performance Board to experience the haptic capabilities of DA7280 with the supplied LRA. DA7280 is configured and controlled by the SmartCanvas™ graphical user interface (GUI) over USB.
The DA7280 high-definition (HD) haptic driver combines custom drive sequences, on- and... Read More
Support Communities
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Is there any available source code in langue C for driving DA7280?
Hi, I am trying to build an STM32 based embedded system using the DA7280 chip to control a vibration motor. Is there any available source code in langue C for driving the chip? Best, Kyle
Feb 21, 2021 -
DA7280 external force sensor I2C interface
Is there a way to interface SingleTact FSR I2C com with DA7280 eval board? Single Tact spec Supply Voltage, Vcc 3.7 – 12V I 2C clock frequency 100KHz or 400KHz I 2C bus level 3 – 5V I 2C output range (sensor data) 10-bit (Operational FSR output 9-bit) Analog ...
Aug 13, 2019 -
DA7280 LRA detection
... EVENT_WARNING_DIAG" we get bit "E_LIM_DRIVE_ACC" active. This is case even when LRA is attached and resonate. Our driver initialize the DA7280 to work in DRO mode and get stream of data only over I2C. LRA is with specifications: terminal resistance = 14.3 ohm +-10% resonant ...
Dec 13, 2019
Support Communities
