Test Summary
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2
Test Summary
2.1
Definitions
This procedure details how to configure the HPA255 evaluation board. On the test procedure the following
naming conventions are followed. Refer to the HPA255 schematic for details.
VXXX :
External voltage supply name (VADP, VBT, VSBT)
LOADW :
External load name (LOADR, LOADI)
V(TPyyy) :
Voltage at internal test point TPyyy. For example, V(TP12) means the voltage at
TP12.
V(Jxx) :
Voltage at jack terminal Jxx.
V(TP(XXX)) :
Voltage at test point “XXX”. For example, V(ACDET) means the voltage at the test
point which is marked as “ACDET”.
V(XXX, YYY) :
Voltage across point XXX and YYY.
I(JXX(YYY)) :
Current going out from the YYY terminal of jack XX.
Jxx(BBB) :
Terminal or pin BBB of jack xx
Jxx ON :
Internal jumper Jxx terminals are shorted
Jxx OFF :
Internal jumper Jxx terminals are open
Jxx (-YY-) ON :
Internal jumper Jxx adjacent terminals marked as “YY” are shorted
Measure:
→
A,B
Check specified parameters A, B. If measured values are not within specified limits
the unit under test has failed.
Observe
→
A,B
Observe if A, B occur. If they do not occur, the unit under test has failed.
Assembly drawings have location for jumpers, test points and individual components
2.2
Equipment
2.2.1
POWER SUPPLIES
Power Supply 1 (PS1): a power supply capable of supplying 5 V at 2 A is required.
2.2.2
LOAD 1
A 10-V (or above), 2-A (or above) electronic load that can operate at constant current mode.
2.2.3
LOAD 2
A HP 6060B 3-60V/0-60A, 300-W system dc electronic load.
Or: equivalent.
2.2.4
METERS
Four Fluke 75, (equivalent or better)
Or: Two equivalent voltage meters and two equivalent current meters. The current meters must be able to
measure a 2-A current.
2.2.5
COMPUTER
A computer with at least one USB port and a USB cable. The bq2415x evaluation software must be
properly installed.
2.2.6
HPA172 COMMUNICATION KIT
A HPA172 USB to I2C communication kit.
4
bq2415x RGY EVM (HPA255)
SLUU366A – March 2010 – Revised April 2010
Copyright © 2010, Texas Instruments Incorporated
