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Test Setup
11
SLUUBQ8B – August 2017 – Revised January 2017
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Copyright © 2017, Texas Instruments Incorporated
Using the UCC25630-1EVM-291
5.3
Recommended Test Setup With Load
Figure 3. UCC25630-1EVM-291 Recommended Test Setup With Load
WARNING
High voltages that may cause injury exist on this evaluation
module (EVM). Please ensure all safety procedures are followed
when working on this EVM. Never leave a powered EVM
unattended.
6
List of Test Points
Table 3. Test Points
TEST POINTS
NAME
DESCRIPTION
TP1
EARTH
AC earth
TP2
VIN_N
Input voltage return terminal
TP3
AC_N
AC neutral
TP4
AC_L
AC line
TP5
VIN_P
Input voltage positive terminal
TP6
BLK
Input voltage sensing
TP7
HS
Primary-side switch node, or the intersection of Q1 and Q2
TP8
HO
Primary-side high side MOSFET gate, Q1
TP9
LO
Primary-side low side MOSFET gate, Q2
TP10
AC_R
AC rectifier output
TP11
VOUT_P
Output voltage positive terminal
TP12
HV
High-voltage start pin
TP13
PGND
Primary-side ground
TP14
PGND
Primary-side ground
TP15
VCR
Resonant capacitor voltage sense
TP16
ISNS
Resonant current sense