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The DA7281-00V42 is a low-power, wide-bandwidth haptic control driver that supports multiple I²C addresses. It can customize vibration waveforms and drive ERM (Eccentric rotor motor) and LRA (Linear resonant motor).

The DA7281-00V42 combines extremely low idle current consumption (360nA) with low-latency trigger input to minimize the delay after pressing a button when the application process is in deep sleep.

Main features

■ LRA or ERM driving capability

■ Automatic LRA resonant frequency tracking

■ Broadband LRA support

■ I2C and PWM input streams

■ Low latency (0.75 ms) I2C/GPI wakes up from low-power idle state, IQ = 0.36 μA

■ Ultra-low latency (0.15 ms) for wake-up from standby state, IQ = 0.8 mA

■ GPI pin, used to trigger up to two independent haptic sequences

■ Board carrier type memory, with amplitude, time and frequency control functions

■ Active acceleration and rapid stop technology to achieve high-fidelity haptic feedback

■ Actuator diagnosis and fault handling

■ Up to four I2C addresses through two address pins

■ Embedded operation does not require software

■ Differential PWM output drive

■ Current-driven system, providing constant actuator power

■ Configurable EMI suppression

■ Automatic short-circuit protection

■ Ultra-low power consumption, IQ = 0.36 μA, maintaining state in idle state

■ Supply monitoring, reporting and automatic production limitation

■ Open-loop and closed-loop modes

■ Support custom wave driving

Typical applications

■ Smartphones, wearables, and ear-worn devices

■ Computer peripheral devices

■ Games

■ Automobiles and industry

■ Virtual reality and augmented reality controllers

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.