Boréas Technologies has extended its flagship low-power piezoelectric driver IC product with a wafer-level chip-scale (WLCSP) version for high-definition (HD) haptic feedback in mobile and wearable consumer products. Housed in a 2.1 x 2.2 x 0.6 mm package and consuming one-tenth the power of its nearest piezoelectric competitor, the BOS1901CW is suited for resource-constrained devices such as buttonless smartphones, smartwatches, game controllers, and other battery-powered devices.
Like Boréas’ BOS1901CQ, in a 4 x 4 x 0.8-mm QFN package, the BOS1901CW is a high-voltage low-power piezo driver IC that is based on Boréas’ patented CapDrive technology, a proprietary scalable piezo driver architecture that provides the foundation for Boréas’ haptic chips. Advantages of CapDrive include greater energy efficiency, low heat dissipation, and fast response times.
Key features include:
- Provides 10X power savings over other piezo solutions and delivers 4X to 20X power savings over other incumbent technologies (LRA, ERM).
- Tiny footprint of 2.1 x 2.2 x 0.6 mm.
- Delivers start-up time of <300 µs, providing faster response times for improved real-time haptic performance
- Supports a wide range of piezoelectric haptic actuators and third-party haptic-effect libraries
- Wide supply voltage range of 3 V to 5.5 V.
A plug-and-play development kit, the BOS1901-KIT is available.
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