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Product Detailed Parameters
- Description：PIEZO HAPTIC DRIVER QFN
- Series：-
- Mfr：Boreas Technologies
- Package：Strip
- Motor Type - Stepper：-
- Motor Type - AC, DC：Piezo
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：Haptic Feedback
- Current - Output：-
- Voltage - Supply：3V ~ 5.5V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The BOS1901CQT is a piezo haptic driver with a digital front end manufactured by Boreas Technologies. It operates on a supply voltage of 3 V to 5.5 V and draws a supply current of 710 µA. The device features a QFN-20 package (4x4 mm) suitable for surface mount installation. It delivers an output voltage of 190 Vpp with a load voltage rating of 95 V, operating within a frequency range of 3.9 Hz to 1 kHz. The component functions across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a digital front end for precise piezo actuator control
- Provides high-voltage output capability for effective haptic feedback generation
- Designed for low power consumption in portable electronic devices
Applications
- Mobile phones and tablets
- Portable computers
- Keyboards and mice
Procurement Notes
Verify the specific suffix CQT to confirm the QFN-20 package type, as other variants like CWR utilize WLCSP packaging. Confirm RoHS compliance status through official documentation before integration. Ensure the design supports the required 3 V to 5.5 V supply range and thermal management for the specified operating temperature limits.
Selection Notes
Select this component when a compact QFN-20 footprint is required for piezo haptic applications. It is suitable for designs needing integrated digital control and high voltage output from a low-voltage supply. Consider the 710 µA supply current for battery-powered constraints. Verify compatibility with existing PCB footprints against the QFN-20 (4x4 mm) specification.
Part Context
This part belongs to the BOS19xx series of haptic drivers from Boreas Technologies, utilizing CapDrive technology. It serves as a specialized PMIC for generating tactile feedback in consumer electronics. The CQT variant specifically denotes the QFN-20 package option, distinguishing it from wafer-level chip-scale packages used in other series members.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative haptic drivers based on package compatibility and electrical specifications if direct substitution is required.
