> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Haptic Driver - DA7280 (SMD)

**Type:** Product page · **SKU:** COM-29759 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-da7280-haptic-motor-driver-ic-lra-erm-smd.html ([markdown](https://core-electronics.com.au/sparkfun-da7280-haptic-motor-driver-ic-lra-erm-smd.html.md))

DA7280 is a linear resonant actuator (LRA) and eccentric rotating mass (ERM) haptic driver offering automatic closed-loop LRA resonant frequency tracking....

## Pricing

- **Price:** $2.85 (inc GST) — $2.59 AUD, exc GST

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 28 and Oct 02.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

DA7280 is a linear resonant actuator (LRA) and eccentric rotating mass (ERM) haptic driver offering automatic closed-loop LRA resonant frequency tracking. The feature guarantees consistency across LRA production tolerances, operating temperature, aging, and mechanical coupling. DA7280 offers wideband operation that fully utilizes the capabilities of newer wideband and multi-directional LRAs.

The differential output drive architecture and continuous actuator motion sensing enable efficient, calibration-free playback and minimize software complexity. Featuring wake-up on General Purpose Input (GPI) sequence triggers and/or I2C activity, DA7280 automatically returns to a low quiescent current state (typically 0.36 µA) between playbacks. At only 20 % of the idle current of the nearest alternative solution, DA7280 significantly extends battery life in mobile systems.

To reduce system complexity, an integrated Waveform Memory allows haptic sequences to be preloaded to DA7280. Independent sequences can be triggered, with low-latency (0.75 ms), by up to three separate input pins without host interaction. Haptic sequences can also be streamed to DA7280 from an external source via I2C or pulse width modulated (PWM) signal.

DA7280 actively monitors the back electromotive force (BEMF) while continuously driving and applies closed-loop Active Acceleration and Rapid Stopping for sharper clicks and a higher fidelity user experience. This offers significant advantages over existing solutions that need to move into a high-impedance state during drive to measure the BEMF, which adds a considerable amount of inactive time to the sequence and lowers the effective click strength for a given LRA.

### Features & Specs

- Motor Type: - AC,DC: ERM, LRA
- Function: Driver - Fully Integrated, Control and Power Stage
- Output Configuration: Half Bridge (2)
- Interface: I2C
- Current - Output: 500mA
- Voltage - Supply: 2.8V ~ 5.5V
- Operating Temperature: -40°C ~ 85°C (TA)
- Grade: Automotive
- Mounting Type: Surface Mount
 
### Documentation

- [Datasheet](https://cdn.sparkfun.com/assets/3/1/6/9/b/DA7280_haptic_driver_datasheet_COM-29759.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/O/COM-29759-1.jpg)