For more information: www.neoconix.comWorking with Microchip Electronics we are developing three potential design applications for in car smart charging for Rear Seat Display & Entertainment Systems.
a). Display is connected upstream of the USB Media Hub:
- Display acts as the USB Host
- Allows data between a Personal Device (PD) attached to one of the downstream ports and the Display – for example, project a phone screen to the Display
- Downstream devices will charge in CDP (Charging Downstream Port) mode – USB84604 provides the battery charge profile
- It may be possible a second USB cable from the Display could plug into a downstream port of the USB Media Hub to charge the Display
b). USB Media Hub is stand-alone (without anything connected upstream)
- Downstream devices will charge in DCP (Dedicated Charge Port) mode
- USB84604 provides the DCP battery charge profiles such as BC1.2 DCP and Apple
c). Rear Seat System for iPad and Custom Display:
- Two Port Charger with data on one port.
- Allows for custom display and/or iPad interface.
- Signal integrity must be good or may need hub or PHY in display to boost
Benefits:
- Larger charger current requirements are on the horizon (Apple ®, Samsung ® …)
- UCS81003 is programmable for wide charger compatibility
- Measuring current helps manage multiple charging devices and balance a dynamic load current*
- Provides USB devices up to 2.7A of continuous charging current
- Emulates universal charging ports for most devices
- Measures and reports on charging current
USB Smart Charging Power Delivery
Microchip Electronics USB Power Delivery
The design is targeted for fully integrated smart-charging module in anodized aluminum body. The Module can be
stand-alone after-market or imbedded in application like car rear seats.
Key characteristics are:
- Module Designed with 4 USB ports.
- One port connected to 12v or home power supply.
- Two Type A and two Type C USB ports.
- For in car application power can be through dedicated 12v line embedded in seat or through power cord connected to rear seat power point.
- Type A and C USB ports to charge iPad and smart phone or charge & make smart phone the master and project on rear seat display.
2xDCP BoB: Key Features
- 5 V, 6A supply
- Dynamic USB-C current advertisement
- Apple 12 W and USB BC 1.2 legacy emulation on each port
- Dynamic power advertisements
- Active thermal management
