Hi all,
After using the USB Y-cable splitter for a while I wasn’t happy with 500mA charging current limitation and started to look for the USB splitter/hub that can output more than 500mA. Surprisingly, I didn’t find anything on the market.
A few weeks back I started designing one (I'm a hardware engineer) and thought I'd share my solution:
Tiny device plugs to M3 front USB port and splits the power and data in to two USB connectors (charger port and data port).
Charger port has a charging port controller chip. It will recognize the connected device and output maximum charging current (limited to 2.1A by the design).
The data lines connected straight to the second USB connector for Flash drives only (Sentry Mode/Music). It has at least 100mA current left on it, which is more than enough to run the flash drive.
Would like to get your feedback on this.
After using the USB Y-cable splitter for a while I wasn’t happy with 500mA charging current limitation and started to look for the USB splitter/hub that can output more than 500mA. Surprisingly, I didn’t find anything on the market.
A few weeks back I started designing one (I'm a hardware engineer) and thought I'd share my solution:
Tiny device plugs to M3 front USB port and splits the power and data in to two USB connectors (charger port and data port).
Charger port has a charging port controller chip. It will recognize the connected device and output maximum charging current (limited to 2.1A by the design).
The data lines connected straight to the second USB connector for Flash drives only (Sentry Mode/Music). It has at least 100mA current left on it, which is more than enough to run the flash drive.
Would like to get your feedback on this.