Haptic Drivers
Low-Power, High-Definition Haptic Drivers: the Buzz in Next Generation Human-Machine Interfaces
Dialog Semiconductor’s DA728x family High-Definition (HD) Haptic Driver provides drive capability at up to 1kHz to cover the broad range of human touch sensitivity. With market-leading idle current consumption (360nA), Linear Resonant Actuator (LRA) resonant frequency tracking capability, and low latency for tact button replacement applications, the DA728x family creates a buzz in smartphones, gaming platforms, wearables, and similar systems.
Powering the Next Generation of Haptic Experiences
Haptic actuators and motors are diversifying at a rapid pace. Gone are the days of simple coin-cell type LRA motors and small ERM (Eccentric Rotating Mass) pager motors. Today’s haptic actuators offer different experiences for different markets. Whether it’s a small pancake LRA for a smart-watch or a large, or a multi-directional, LRA for gaming controllers, Dialog’s patented current drive outputs support all of these motors with up to 500mA of current.
Standalone Haptic Driver Portfolio
| Product | Description | 亚博国际官网平台网址 |
|---|---|---|
| DA7280 | Low Power LRA/ERM Haptic Driver | Smartphones, Gaming, Wearables, Automotive, Personal Medical, Touch Displays, Industrial Human-Machine Interfaces |
| DA7281 | Low-power, high-definition haptic driver for multi-driver systems | Smartphone, Gaming, Wearables, Portable computing systems, Computing – all-in-ones (display), Notebook PC, Any display driven consumer product, Automotive, Industrial, Medical |
| DA7282 | Ultra-low standby current, high-definition haptic driver for wearables and related systems | Smartphone, Gaming, Wearables, Portable computing systems, Computing – all-in-ones (display), Notebook PC, Any display driven consumer product, Automotive, Industrial, Medical |
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1 month ago
Sr. Design Engineer
Posted byvijay.moghe@flex.com15 points 3 repliesHi,
I was looking at using the DA9021 PMIC Charger IC for one of our current projects. I noticed that it is mentioned that it is not recommended for new designs. I wanted to know why that is the case?
Do you have any other PMIC Charger ICs with integrated Buck Regulator with the following specifications?
Input Voltage : 5V
Buck Output Voltage: 3.3V
Charge Current : Programmable up to 500 mA
Battery Type : Lithium Polymer/ Lithium Ion
Thanks,
Vijay
1 month ago
Hi Ellicot,
The charger needs to have at least one integrated buck switching regulator with a 3.3V output.
If there is more than 1 regulator, that is fine. But we cannot use an LDO for our application.
一个电池充电器需要have a programmable charge current of 500 mA or less.
1 month ago
Hello Vijay,
The DA9070/73 could be an option. You would have to look at using a Vdivider in the buck's feedback loop to increase the voltage about its output voltage operating range. We have tested at 2.625V and the output is stable, we would have to look at 3.3Vout in further and if the increase in power consumption is ok.
1 month ago
Hello Vijay,
Could you confirm some requirements for me.
I take it, you are looking for a single cell charger, with a programmable charge current of 500mA?
Due to the charge current, a linear charger would be acceptable?
The device also needs to have a 1 x 3V3 buck only?
Kind regards,
Elliott