Vicor VI Chip Remote Sense PRM Evaluation Board - Manual (Page 8)

UG:016 vicorpower.com Applications Engineering: 800 927.9474 Page 8
Test Points Description
Each test point has a socket which accepts 0.015 – 0.025 inch diameter leads for easy
installation of solid wires and through-hole components. All the test points are brought
out to the edge of the board to allow for easy measurement and/or connection to the
user’s external circuitry. All test points are labeled and routed to the edge of the board.
Each test point is accompanied with an adjacent socket for adding a test lead or to
facilitate wiring to external circuitry.
Reference Functional Functional
Designator Name Description
TP30, +IN,
Input voltage test points provide kelvin connection to input pins of the PRM ® .
TP33 -IN
Use these test points for measuring the input voltage of the PRM to avoid
error due to interconnect losses.
TP31, +OUT,
Output voltage test points provide kelvin connection to output pins of the PRM.
TP32 -OUT
Use these test points for measuring the output voltage of the PRM to avoid
error due to interconnect losses.
TP34,
TP21, SG
Signal Ground (SG) test points are the ground reference for all control circuitry
TP22
and signal pins of the PRM.
TP28, CS+,
TP29 CS-
Used to measure the output current of the PRM across shunt resistor R25.
TP35, IM,
TP36 SG
Used to measure the output of current sense IC with reference to SG.
TP10 PR Used to measure the PR signal of the PRM with reference to SG test point.
TP11 NC No Connect. For internal use only.
TP12 TM Used to measure the TM signal of the PRM with reference to SG test point.
TP13 VS Used to measure the VS signal of the PRM with reference to SG test point.
RE TP14 Used to measure the RE signal of the PRM with reference to SG.
TP15 NC No Connect. For internal use only.
TP16 PC Used to measure the PC signal with reference to SG.
TP17 VC Used to measure the VC signal with reference to SG.
TP18 IF
Used to measure the IF signal of the PRM with external constant current circuit
with reference to SG in Remote Sense Operation.
TP43,
VREF
Used to measure the voltage reference signal of the error amplifier with reference
TP44 to SG in Remote Sense Operation.
TP19,
TP20
NC No connect. For internal use only.
TP37, Can be used to inject the isolated signal of network analyzer for bode plot
TP38 measurement to measure the stability in Remote Sense Operation.
TP23, VG, Can be used to connect function generator to control the open drain
TP24 SG MOSFET in ENABLE control.
TP39,
Not Applied.
TP41
TP40,
Not Applied.
TP42
Table 3.
Test points description
Note: for RS PRM, silkscreen
may not match pin name.
See section: Considerations for
Remote Sense only PRM