Texas Instruments TPS65987-90, Руководство пользователя, Страница: 5 / 25

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Setup
5 SLVUBF3A – May 2018 – Revised August 2018
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TPS65987-90 Evaluation Module
2.2 Connector Functionality
Table 2 lists the TPS65987-90EVM connector and functionality.
Table 2. Connector Functionality
Designator Description
J1 USB Type-C connector: TI recommends using an active or e-marked USB Type-c cable
J2 Expansion board connector: Connect the DP-EXPANSION-EVM to evaluate DisplayPort and USB3.2 data
J3 Micro-B connector: Connect to a PC to flash a project on the PD controller. You must download the
Application Customization Tool (GUI) to flash a project properly.
J9 Barrel jack connector: Use a 19-V to 20-V DC supply. A standard Dell or HP notebook adapter (or similar) will
provide the required power.
2.3 Test Points
Table 3 lists the TPS65987-90EVM test points.
Table 3. Test Points
Test Point Label Description
TP1 VBUS V
BUS
voltage on the USB Type-C connector. Sourcing and sinking is always in
reference to V
BUS
(Source to V
BUS
or sink from V
BUS
).
TP2 CC1 System side CC1. This could be VCONN or CC depending on polarity flip of the USB
Type-C cable.
TP3 CC2 System side CC2. This could be VCONN or CC depending on polarity flip of the USB
Type-C cable.
TP4, TP5 GND Ground reference for entire board
TP6 P3V3 Output of 3.3-V DC/DC convertor to power up all ICs on the EVM
TP7 P5V0 Output of 5-V DC/DC convertor used for PP_CABLE (VCONN)
2.4 LEDs
Table 4 lists the TPS65987-90EVM LEDs.
(1)
On the EVM board silkscreen print the SSMX: DP and SSMX: USB3 signals are swapped.
Table 4. LEDs
Designator Label Description
D12
μ
B VBUS White LED that shows when the
μ
B port is connected (FTDI for GUI).
D13 SSMX: DP
(1)
White LED that shows when the TPS65987D device has enabled this signal for the
super-speed MUX in the DP-EXPANSION-EVM (depending on version of EVM the
silkscreen may appear to show this signal swapped with SSMX: USB3)
D14 SSMX: FLIP White LED that shows when the TPS65987D device has enabled this signal for the
super-speed MUX in the DP-EXPANSION-EVM
D15 SSMX: USB3
(1)
White LED that shows when the TPS65987D device has enabled this signal for the
super-speed MUX in the DP-EXPANSION-EVM
D16 VBUS White LED that shows when V
BUS
has a voltage of 5 V, 9 V, 15 V, or 20 V
D19 SYS_PWR Blue LED that shows when the barrel jack is connected
D20 VAR_DCDC Green LED that shows when there is a voltage on the variable DC/DC controller (U9).
When the EVM acts as a source, D20 lights up.
D22 PDO_0 White LED that shows when there is a 5-V PD contract (only shown when sourcing)
D22 PDO_1 White LED that shows when there is a 9-V PD contract (only shown when sourcing)
D24 PDO_2 White LED that shows when there is a 15-V PD contract (only shown when sourcing)
D25 PDO_3 White LED that shows when there is a 20-V PD contract (only shown when sourcing)