Tps7H4003Evm Initial Setup; Table 3-1. Summary Of Connections - Texas Instruments TPS7H4003EVM User Manual

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3 TPS7H4003EVM Initial Setup

This section provides the test instruments required and the connections to the EVM.
1. Input DC power supply
a. Set for 5-V DC, 8-A current limit.
b. Connect positive output of DC supply to pin 1 of connector J1 (PVIN) and negative terminal of supply to
pin 2 of connector J1 for ground using 16 AWG wire or larger.
• NOTE: For more precise measurements, eliminating the IR voltage drop in the input cables is
achieved by using a power supply source with sensing ports and connecting between TP2 to PVIN
and TP1 to GND.
2. DC electronic load
a. Connect positive DC input of e-load to pin 1, VOUT, of connector J7 (VOUT) using 16 AWG wire.
• NOTE: Wire from pin 1, positive terminal of connector, to the e-load should include at least some part
in which the wire gauge can be strapped by the oscilloscope current probe. This will eliminate the
need for a setup change to cover all tests.
b. Connect negative DC input of e-load to pin 2, PGND, of connector J7 (VOUT) using 16 AWG wire.
c. Connect voltage monitoring sensing ports of e-load across test points TP12 (VOUT1) and TP13 (PGND).
A voltage meter can be used to monitor this voltage also.
3. Oscilloscope
a. CH1 - Connect voltage scope probe to scope probe test point J5 (PH) to monitor the phase node. DC
coupled, Full BW, 2 V/div, Rising Edge Trigger at 0.5 V.
b. CH2 - Connect voltage scope probe to scope probe test point J6 (VOUT) to monitor the output voltage.
AC coupled, BW = 20 MHz, 10 mV/div.
c. CH4 - Connect current scope probe to monitor current through wire connecting J7 (VOUT) and e-load. 5
A/div.
• NOTE: Only required for transient load testing.
REFERENCE DESIGNATOR
J1
J7
J5
J6
TP12
TP2
TP1, TP13
SLVUC73A – JANUARY 2022 – REVISED AUGUST 2023
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Table 3-1. Summary of Connections

SILKSCREEN
PVIN
VOUT
PH Phase switching node scope probe test point (Scope CH-1)
VOUT
VOUT
PVIN
GND
Copyright © 2023 Texas Instruments Incorporated
FUNCTION
Input power: pin 1 = 5 V, pin 2 = GND (Vsupply)
Output voltage: pin 2 = GND, pin 1 = Vout ≈1 V (e-load)
VOUT scope probe test point (Scope CH-2)
VOUT test point (e-load monitor)
PVIN test point (Vsupply_sense)
GND test points (Vsupply_sense, e-load monitor)
TPS7H4003EVM Evaluation Module (EVM)
TPS7H4003EVM Initial Setup
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