Texas Instruments TPS548D21EVM-784, User Manual

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List of Test Points, Jumpers, and Switch
7 SLUUBG3A – July 2016 – Revised August 2016
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Copyright © 2016, Texas Instruments Incorporated
TPS548D21EVM-784, 40-A Single Synchronous Step-Down Converter With
Full Differential Sense
7 List of Test Points, Jumpers, and Switch
Table 2. Test Point Functions
Item Type Name Description
TP5 T-H loop SW Power supply Switch node
TP7 T-H loop CH-A Measure loop stability
TP6 T-H loop CH-B Measure loop stability
TP2 T-H loop LocS+
Sense VOUT + locally across C5. Use for efficiency and ripple
measurements
TP10 T-H loop LocS-
Sense VOUT– locally across C5. Use for efficiency and ripple
measurements
TP3 T-H loop RemS+ Remote sense +
TP11 T-H loop RemS- Remote sense –
TP4 T-H loop PVIN Sense VIN + across C10
TP13 T-H loop PGND Sense VIN – across C10
TP1 T-H loop VDD Supplies the internal circuitry
TP17 T-H loop FSEL Monitor the FSEL external resistor divider ratio during initial power up.
TP15 T-H loop VSEL Monitor the VSEL external resistor divider ratio during initial power up.
TP9 T-H loop BP LDO output
TP8 T-H loop PG Power good
TP16 T-H loop MODE Monitor the MODE external resistor divider ratio during initial power up.
TP12 T-H loop ILIM Program over-current limit.
TP14 T-H loop REFIN_TRK System reference voltage that can be overridden by the external voltage
source for the tracking and sequencing application.
TP19 T-H loop PGND Common GND
TP18 T-H loop PGND Common GND
TP20 T-H loop CLK Not used
TP21 T-H loop DATA Not used
TP22 T-H loop ALERT Not used
JP4 2-pin jumper CNTL Shunts control pin to GND