OMPHONE · PCB · 58×80mm · TOP LAYER · REV 1.0

ANTENNA KEEPOUT ANT nRF52832 QFN48 X1 32MHz TTP223 CAP PAD 25mm J1-HEAT J2-MOT J3-NTC J4-BATT TP4056 SOP-8 DW01A FS8205 Q1 LED1 C1 C2 C3 C4 C5 C6 R1 R2 R3 LiPo 100mAh 25×38×4mm 3.7V · 370mWh USB-C OMPHONE REV1.0 · 58×80mm · 2-LAYER · FR4 MFG: JLCPCB · ASSY: JLCPCB SMT
nRF52832BLE SoC QFN48 · main MCU
X1 — 32MHzExternal crystal for BLE timing
TTP223Capacitive touch IC · wake on pick-up
CAP PAD 25mmTouch sense pad on PCB surface
J1-HEATJST-PH 2-pin · to resistive heating pad
J2-MOTJST-PH 2-pin · to 12mm coin motor
J3-NTCJST-PH 2-pin · to NTC thermistor
J4-BATTJST-PH 2-pin · to LiPo cell
TP40561A LiPo linear charger SOP-8
DW01ABattery over-discharge/charge protection
FS8205ADual N-channel MOSFET for protection
Q1 NPN2N7002 motor PWM driver
LED1Charge status indicator 0402
LiPo 100mAh25×38×4mm · 3.7V · 370mWh
USB-CUSB4105-GF-A · charging port
VBAT
3.3V
VBUS
GPIO
Heater
LiPo