5.1.8 Barrel Jack Detect
The TPS65988EVM is capable of requesting a power role swap when the barrel jack is connected on an EVM
that is currently bus-powered. The barrel jack voltage is sensed by a comparator, which drives GPIO1
(BJ_DETECT) on the TPS65988. By default, the
Barrel Jack Detect
is not enabled. To enable
Barrel Jack Detect
place R109 and refer to the
TPS65988 Utilities Tool User Guide
and
TPS65988 Firmware User Guide
.
highlights these features.
3
4
1
6
2
V+
V-
5
U10
TLV3012AIDCKR
560k
R115
DNP
39k
R112
DNP
GND
GND
Hysterisis
Vh 1.376V
Vl 1.16V
100k
R107
15.0k
R111
GND
Good @ 11.2V
!Good @9.5V
22pF
C85
GND
0
R108
0.1µF
C80
BJ_DETECT
0
R109
DNP
Figure 5-19. Barrel Jack Detect Schematic
5.1.9 USB Type B Connector (J11)
J11 is the Type-B connection to the PC for testing USB 2.0 or USB 3.0 functionality. A Type-A to Type-B cable
can be used to connect the EVM to the USB port on a computer. This connector provides the USB data to the
USB HUB on the TPS65988EVM.
highlight these features.
Figure 5-20. USB Type-B Receptacle (J11) Schematic
TUSB546
TUSB546
DisplayPort
Source
Receptacle
LNA
LNB
LNC
LND
DP0
DP1
DP2
DP3
Port A
Port B
DP0
DP1
DP2
DP3
BDP0
BDP1
BDP2
BDP3
DP0
DP1
DP2
DP3
ADP0
ADP1
ADP2
ADP3
TUSB546
Copyright © 2017, Texas Instruments Incorporated
Figure 5-21. USB (J11) Block Diagram
Setup
16
TPS65988 Evaluation Module
SLVUB62B – JUNE 2017 – REVISED NOVEMBER 2020
Copyright © 2020 Texas Instruments Incorporated