翊欧半导体：专业分立器件解决方案提供商丨MOSFET，ESD，TVS，光耦，电源管理IC

Bluetooth headset

Wireless Bluetooth headsets are one of the smallest applications in mobile devices. It is designed to incorporate as many devices as possible in a super-small profile, which requires them to consume less power, provide better audio, and even include noise cancellation and bio-monitoring functions. In addition to these features, it is also required to ensure a long battery life. “Our ultra-small wafer-level packages can help you provide the functionality you need for consumer electronics.”

功能框图

产品

Load switch MOSFET: VDSS 12-20v
Battery MOSFET: VDSS 12-20v, p-channel
TVS (ESD) : antenna protection/mobile applications
Diode (Schottky rectifier) : VR: 20-40V IF >200ma
...
...

设计注意事项

There is a balance to be struck between ultra-long battery life and always-on functionality-energy efficiency is very important
Low power consumption is essential for these small wearable devices
Requires very small package or wafer-level chip occupation area
“For more energy-efficient wired charging, you can use two back-to-back mosfets instead of built-in Schottky diode.”