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Model: JX896A / 9929 Chipset
A multi-protocol wireless charging reference design supporting up to 25W for Apple-compatible applications and 15W Samsung/EPP charging, with a four-layer PCB and wide fixed-voltage input range.
Technical Solution Display
This page presents technical specifications, performance, compatibility and applications. It is not an online retail listing.
Solution Overview
| Wireless charging chipset | 9929 |
|---|---|
| Maximum APP output | 25W |
| Compatible protocols | Samsung 15W, APP 25W/15W, EPP 15W, PPDE 10W, Apple 7.5W and BPP |
| Coil | APP coil, 6.5 μH inductance, Q ≥65, DCR ≤60 mΩ |
| Spacer height | 1 mm |
| PCB | 4 layers, 0.8 mm thickness; outer copper 1 oz, inner copper 0.5 oz |
| Operating frequency | Samsung 110-146 kHz; APP 360 kHz |
| APP operating points | 15V/25W, 12V/15W and 9V/7.5W |
| Samsung operating points | 9V or 12V, up to Samsung 15W |
| Input | 5V/3A, 9V/3A, 12V/3A or 15V/3A |
| Protection | Overvoltage, undervoltage, overcurrent, overtemperature, FOD and automatic thermal power reduction |
Engineering Reference
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A compact AP watch wireless charging reference design using the 9913 SOC, with 2.5W dynamic decoding, low temperature rise and flexible integration for single-watch and multi-device products.
A 2.5W AP watch dynamic-decoding solution using the 9913 SOC, with an integrated decoding MCU, low temperature rise and optimized half-bridge drive current.
An AP watch fast-charging reference design supporting up to 5W dynamic decoding, boost or buck input architectures, offline firmware upgrades and EMC-oriented hardware optimization.
