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Test Setup

Table 2. The Functions of Each Test Points

Test Point Type Name Description

TP1 T-H Loop PGOOD2 Power Good signal for Vout 2.

TP2 T-H Loop VIN General input voltage measurement.

TP3 T-H Loop VOUT1 Tip and barrel point for Vout 1.

TP6 T-H Loop PGND Tip and barrel point for Vout 1 return.

TP7 T-H Loop PGND General input voltage measurement.

TP11 T-H Loop VOUT2 Tip and barrel point for Vout 2.

TP13 T-H Loop AGND Return for PGOOD signals.

TP14 T-H Loop PGND Tip and barrel point for Vout 2 return.

TP15 T-H Loop PGOOD1 Power Good signal for Vout 1.

TP16 T-H Loop BPEXT Point to inject BP External.

TP18 T-H Loop PREBIAS2 Point to inject Prebias for output 2.

TP19 T-H Loop PREBIAS1 Point to inject Prebias for output 1.

TP20 T-H Loop PGND Return for Prebias 2.

TP21 T-H Loop PGND Return for Prebias 1.

TP22 T-H Loop PGND Return for BP External.

TP4 SMT AGND Return for SYNC signal.

TP8 SMT INPUT1 Input for control loop measurements for Vout 1.

TP9 SMT OUTPUT1 Output of Vout 1 for control loop measurements.

TP10 SMT VOUT2 Output of Vout 2 for control loop measurements.

TP12 SMT INPUT2 Input for control loop measurements for Vout 2.

TP17 SMT SYNC Point to inject SYNC signal.

TP5 Copper Dot VIN Vin+ measurement point for efficiency of Vout 1.

TP23 Copper Dot PGND Vin- measurement point for efficiency of Vout 1.

TP24 Copper Dot VIN Vin+ measurement point for efficiency of Vout 2.

TP25 Copper Dot PGND Vin- measurement point for efficiency of Vout 2.

TP26 Copper Dot VOUT2 Vout+ measurement point for efficiency of Vout 2.

TP27 Copper Dot VOUT1 Vout+ measurement point for efficiency of Vout 1.

SLVU638–January 2012 Using the PWR091EVM Dual-Output DC/DC Analog With PMBus Interface

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