4.1.9 TP10, TP11, TP12, TP13: GND Test Points
TP10, TP11, TP12, TP13 GND test points are provided for attaching an oscilloscope or multimeter, as well as for
load testing. These test points are connected to the board GND planes through multiple vias.
4.1.10 TP2, TP3, TP4, TP5: CC1 and CC2 Test Points
Test points CC1 and CC2 are used to tie a PD protocol analyzer for PD BMC data or to verify the BMC signal
integrity with an oscilloscope (depending on the cable orientation). Use a multimeter or oscilloscope to measure
VCONN when an electronically marked USB Type-C cable is connected. Use these test points to attach an
external load on VCONN.
4.1.11 TP1, TP6: VBUS Test Points
The VBUS test points are used to measure VBUS at each USB Type-C port A/B connector. With PD power
possibly going up to 20 V, use caution when connecting and disconnecting probes on the TPS65994EVM. The
VBUS test point is capable of drawing up to 3 A for an external load. Note that a PD power contract with the
necessary capability must be negotiated in order to draw current from the VBUS test point.
4.1.12 J4 and J5 (Bottom of EVM): Signal Headers
These headers allow the user to probe many different signals on the TPS65994EVM. Note that some of the
header pins are not connected unless a 0-Ω option resistor is placed.
Figure 4-8. Debug Header (J4) Schematic
Setup
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8 TPS65994 EVM User Guide SLVUBM1C – JANUARY 2019 – REVISED JANUARY 2021
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