High efficiency in small footprint
This design features a wireless headphone with a cradle solution. It includes an ultra-low power 48MHz Arm® Cortex®-M23 MCU in conjunction with a best-in-class, high-efficiency power solution that enables extended battery life.
System Benefits:
- Advanced security, connectivity and flexible software
- Integrated AFE enables reduction in BOM costs and PCB size by eliminating several analog components
- Compact for space-limited applications
- Highly efficient and low quiescent current power solution
- The P9235A wireless power transmitter features an integrated Arm® Cortex®-M0 processor, which provides a high level of programmability, and empowers users to customize features, such as LED patterns, buzzers and FOD threshold settings

Recommended products
Products | Description | Documents |
---|---|---|
Microcontroller | ||
RA2A1 | 48MHz Arm® Cortex®-M23 core with integration of a 24-bit sigma-delta ADC | Datasheet |
RL78/G1D | Bluetooth® Low Energy microcontrollers for smart connectivity | User's manual |
Battery Charger | ||
ISL9205 | Li-ion battery charger | Datasheet |
Buck-Boost Regulator | ||
ISL9120 | Compact high efficiency low power buck-boost regulator | Datasheet |
Voltage Supervisor | ||
ISL88002 | Ultra-low power 3 Ld voltage supervisor in SC-70 and SOT-23 packages | Datasheet |
Wireless Power Transmitter | ||
P9235A-RB | Wireless power transmitter for up to 5W applications | Datasheet |
Wireless Power Receiver | ||
P9222-R | Wireless power receiver for low power applications | Datasheet |
System block diagram
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