Invention Patent Chip VM8320N/VM6320N Wear Detection and Touch Single Chip Serie

To adapt to the low-power design of the new Bluetooth main platform, the VM8320N/VM6320N series of forward designed in ear detection dedicated chips are suitable for in ear detection and on/off sensing of TWS earphones;
A dual channel chip with touch buttons added for in ear detection;
Working voltage 2.4V~5.5V
Built in voltage regulator circuit provides stable voltage for circuit use
Built in Low Voltage Reset (LVR) function
Working current @ VDD=3V, typical value 8uA, * * * * value 10uA
Output response time: Touch for 46ms in ear detection 180ms@VDD =3V
Sensitivity can be adjusted by external capacitors (1-50pF)
Touch and in ear detection are OD open leakage outputs, low level is effective
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