DP1
1
GND
2
NC
3
NC
4
IN
5
DM1
6
U2
TPS2514ADBV
GND
Dp
Dn
J15
OUT
J
1
4
J
1
3
CC1 CC2
Ra
Rd
DEBUG#
ON
OUT
GND
J7
J
1
4
J
1
3
CC1 CC2
Ra
Rd
OUT
GND
J7
AUDIO#
ON
TPS25810EVM-745 Features
6.5
Connecting an Audio Accessory Device
The TPS25810 can detect if an audio accessory device has been connected. It is detected by checking if
both CC lines are connected to a Ra resistor value. This connection is unique in the sense that both Ra
resistors must be connected to the CC lines within a small time frame (usually about 10 ms). The easiest
way to test this mode on the TPS25810EVM-745 is by connecting an audio accessory device through the
USB port.
shows which LEDs are switch on when having both CC jumpers connected to Ra
after a power cycle.
Figure 11. Simulating an Audio Accessory Device on the TPS25810EVM-745
6.6
Connecting a Debug Accessory Device
The TPS25810 can detect if a debug accessory device has been connected. It is detected by checking if
both CC lines are connected to a Rd resistor value. This connection is unique in the sense that both Rd
resistors must be connected to the CC lines within a small time frame (usually about 10ms). The easiest
way to test this mode on the TPS25810EVM-745 is by connecting a debug accessory device through the
USB port.
shows which LEDs are switch on when having both CC jumpers connected to Rd
after a power cycle.
Figure 12. Simulating a Debug Accessory Device on the TPS25810EVM-745
6.7
Connecting to a Previous USB Version
The TPS25810EVM-745 supports previous USB versions with the help of the TPS2513 which will send
the necessary power to devices that charge using the data lines (D+ and D–). The TPS2513 can support
USB 2.0 and USB 3.0 devices. For more information about the TPS2513 refer to the TPS2513 data sheet,
. Note that in order to connect a previous USB version to the EVM, a USB Type-C adaptor will
be needed. In order to enable or disable the TPS2513 connect or disconnect jumper J15.
shows
the schematic connection for the TPS2513 on the TPS25810EVM-745.
Figure 13. Schematic of TPS2514 Section
11
SLVUAI0A – September 2015 – Revised September 2015
TPS25810EVM-745 User's Guide
Copyright © 2015, Texas Instruments Incorporated
