Texas Instruments TPS25810EVM-745, User Manual

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J
1
4
J
1
3
CC1 CC2
Ra
Rd
J
1
4
J
1
3
CC1 CC2
Ra
Rd
UFP# POL#
OFF
OFF
UFP# POL#
OFF OFF
OUT
GND
J7
OUT
GND
J7
J1
4
J1
3
CC1
CC2
Ra
Rd
J1
4
J1
3
CC1 CC2
Ra
Rd
CC1
CC2
Ra
Rd
CC1
CC2
Ra
Rd
UFP Device Connected UFP Powered Device Connected
UFP# POL#
ON
OFF
LD_DET#
ON
UFP# POL#
ON ON
LD_DET#
ON
UFP# POL#
ON OFF
LD_DET#
ON
UFP# POL#
ON ON
LD_DET#
ON
CC1 CC2
Ra
Rd
CC1 CC2
Ra
Rd
CC1
CC2
Ra
Rd
CC1
CC2
Ra
Rd
UFP# POL#
ON OFF
LD_DET#
OFF
UFP# POL#
ON ON
LD_DET#
OFF
UFP# POL#
ON OFF
LD_DET#
OFF
UFP# POL#
ON ON
LD_DET#
OFF
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
OUT
GND
J7
J1
4
J1
3
J1
4
J1
3
J1
4
J1
3
J1
4
J1
3
J1
4
J1
3
J1
4
J1
3
TPS25810EVM-745 Features
www.ti.com
Figure 9. Simulating an UFP Device on the TPS25810EVM-745 With and Without an Output Load
6.4 Connecting a Non-UFP Powered Device
The way the TPS25810 detects a powered device is by checking if one of the CC lines is connected to a
Rd resistor value. To test a connection to a non-UFP powered device on the EVM set the CC1 and CC2
jumpers and the out connection based on
Figure 10 . Note that the UFP# and POL# LEDs will not light up
with a non-UFP powered device since no signals from the TPS25810 are triggered.
Figure 10. Simulating a Non-UFP Powered Device on the TPS25810EVM-745
10 TPS25810EVM-745 User's Guide SLVUAI0A – September 2015 – Revised September 2015
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