Datasheet

7 EVM Feature Details
7.1 Test Points
EVM Feature Details www.ti.com
The TPS2359EVM contains numerous test points throughout the circuit for user monitoring of waveforms
and voltage measurement. Table 7 lists the module test points and the signal available at each one. The
EVM PCB layout connects all ground nodes and supply returns to a common GND node, via several
power plane areas. However, due to potentially high loading conditions on the two Payload Power outputs,
multiple ground test points are provided to mitigate the measurement impact of return current drops.
Therefore, where appropriate, certain test points are paired in the table with the pertinent reference point
for meter return connections.
Table 7. Module Test Points
TEST REF. POINT SIGNAL NAME DESCRIPTION
POINT
TP1 TP3 12VIN1 Input 12 V supply for AdvancedMC™ Slot A
TP2 3V3IN1 Input 3.3 V supply for AdvancedMC™ Slot A
TP4 TP6 12VIN2 Input 12 V supply for AdvancedMC™ Slot B
TP5 3V3IN2 Input 3.3 V supply for AdvancedMC™ Slot B
TP7 TP9 SLOTA_PWR AdvancedMC™ Slot A Payload Power, 12 V output
TP8 SLOTA_MP AdvancedMC™ Slot A Management Power, 3.3 V output
TP10 TP12 SLOTB_PWR AdvancedMC™ Slot B Payload Power, 12 V output
TP11 SLOTB_MP AdvancedMC™ Slot B Management Power, 3.3 V output
TP13 TP24, TP25 EN3A Active-high enable input to TPS2359 for the channel A 3.3 V rail
TP14 EN3B Active-high enable input to TPS2359 for the channel B 3.3 V rail
TP15 TP16 Slot A 12-V load current sense voltage
TP17 TP24 PASSA TPS2359 channel A pass FET gate drive output
TP18 BLKA TPS2359 channel A block/OR’ing FET gate drive output
TP19 TP20 Slot B 12-V load current sense voltage
TP21 TP25 PASSB TPS2359 channel B pass FET gate drive output
TP22 BLKB TPS2359 channel B block/OR’ing FET gate drive output
TP23 TP24, TP25 /IRPT Open-drain, active-low /IRPT (interrupt) output signal from TPS2359
16 SLUU318 – August 2008
TPS2359 Dual-Slot ATCA™ AdvancedMC™ Controller with I
2
C Evaluation Module
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