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3-in-1 Wireless Charger PCBA – Multi‑Device Fast Charging for Phone, Earbuds & Smartwatch with Qi-Certified Coils & Foreign Object Detection
No.YQQX033
- Triple‑Device Simultaneous Charging – Supports phone (15W/10W/7.5W, Qi-compatible), TWS earbuds (5W, AirPods compatible), and smartwatch (2W, specific pogo pins or coil for Apple Watch / Samsung Gear). Independent channels eliminate power sharing.
- Multi‑Protocol Compatibility – Works with Qi-BPP (5W baseline), Qi-EPP (extended power profile, 15W), and proprietary fast charge (Samsung Fast Charge, Apple 7.5W). Auto‑detects receiver type and adjusts power.
- Smart Power Management – Input: 9V/2.22A (20W) or 12V/2A (24W) via USB‑C PD. Dynamic power distribution: if phone demands 15W, remaining devices get allocated accordingly. Over‑temperature derating (reduces power at >50°C case temperature).
- Safety & Protection Features – Foreign Object Detection (FOD) : detects metal objects (coins, keys) on charging surface, shuts down channel within 0.5s. Over‑voltage, over‑current, short‑circuit, and thermal shutdown. Blue LED indicator for each channel.
- Compact & Ready to Integrate – PCB size as small as 65×65mm, with 3 pre‑wired charging coils (phone: 2‑coil overlapping for larger sweet spot, earbuds: single small coil, watch: dedicated coil or pogo pins). Plug‑and‑play into existing charging pad enclosures.
- Applications – Suitable for: desktop charging pads, bedside tables, office desks, hotel room charging stations, car centre consoles (with 12V‑USB‑C adapter), coffee shops (public charging spots), and multi‑device docking stations for Apple/Samsung ecosystems.
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Product Overview
The 3-in-1 Wireless Charger PCBA is a complete multi‑device wireless charging solution designed for charging a smartphone, TWS earbuds case, and a smartwatch simultaneously – all from a single power input (USB‑C PD). It integrates three independent Qi‑compliant charging channels, power management circuits, foreign object detection (FOD), and thermal protection into a compact PCB that fits inside flat charging pads, stands, or car mounts.
As the number of personal electronic devices continues to grow (phone + watch + earbuds), consumers increasingly demand single‑station “drop‑and‑charge” solutions. This PCBA enables manufacturers to produce sleek, reliable 3‑in‑1 chargers for home, office, hospitality, and automotive use.
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