P9415-R-EVK Evaluation Kit
R16UH0015EU0100 Rev.1.0
May 27, 2021
Page 8
4.5.2.
Wattshare
TM
Tx Mode Input Voltage
The P9415-R can transfer up to 5W of power in TRx mode. It follows the WPC 1.2.4 BPP protocol to transfer the
power to other Qi-certified receivers such as Mobile devices, wearables and hearables. The maximum power
delivered in TRx mode is dependent on the input voltage on VOUT pin, coil characteristics such as AC
resistance, and the friendly metal around the coil. Because the coil used for power transfer in TRx mode has
high AC resistance compared to transmitter coil used in a charging pad, the input voltage on the VOUT pin in
TRx mode must be around 7V to 9V to deliver 5W of power to the receiver.
5. P9415-R Evaluation Board Test Point and Connector
There are many test points placed around P9415-R EVK PCB board that can be used for quick and easy
evaluation of P9415-R performance. VOUT, VRECT and GND have large size test points for easy test cable
connection for supplying power and loading. J1 and J5 are the pin type connector for USB-I2C bridge dongle
interface connection and system configuration and monitoring.
5.1
P9415-R Evaluation Board Test Point Placement
Figure 6. Evaluation Board Test Point Placement
5.1.1.
J1 Dongle Connector Pin Descriptions
Table 1. J1 Dongle Connector Pin Descriptions
Pin Number
Name
Type
Description
1
SCL
Input
I2C Interface Clock signal.
2
SDA
Input /Output
I2C Interface Data signal.
3
GND
Power
Ground reference.
4
VDONGLE
Power
Dongle power supply from USB Dongle cable (optional).
5
OD2_INT
Output
Interrupt Signal from P9415-R. Connect OD2_INT to AP GPIO with PU (optional).
