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2
Test Summary
2.1
Definitions
2.2
Equipment
Test Summary
This procedure details the configure of the HPA104 evaluation board. On the test procedure, the following
naming conventions are followed. See the HPA104 schematic for details.
VXXX :
External voltage supply name (VADP, VBT, VSBT)
LOADW:
External load name (LOADR, LOADI)
V(TPyyy):
Voltage at HPA104 internal test point TPyyy. For example, V(TP12) means the
voltage at TP12.
V(Jxx):
Voltage at HPA104 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 :
HPA104 internal jumper Jxx terminals are shorted
Jxx OFF:
HPA104 internal jumper Jxx terminals are open
Jxx (-YY-) ON:
HPA104 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 occurs. If they do not occur, the unit under test has failed.
The assembly drawings have locations for jumpers, test points, and individual components.
2.2.1
POWER SUPPLIES
•
Power Supply Number 1 (PS1): a power supply capable of supplying 20-V at 5-A is required.
•
Power Supply Number 2 (PS2): a power supply capable of supplying 5-V at 1-A is required.
•
Power Supply Number 3 (PS3): a power supply capable of supplying 5-V at 1-A is required. (bq24721
EVM only).
2.2.2
ELECTRONIC LOAD
•
A 30-V, 5-A electronic load
2.2.3
KEPCO LOAD
•
A Kepco bipolar operational power supply / amplifier, 0 V
±
20 V (or above), 0 A
±
6 A (or above).
2.2.4
METERS
•
Eight Fluke 75, (equivalent or better)
–
Or: Five equivalent voltage meters and three equivalent current meters. The current meters must
be able to measure 5A+ current.
2.2.5
OSCILLOSCOPES
•
An oscilloscope, a single voltage probe, and a single current probe are required.
bq24720/21 EVM (HPA104) for Multi-Cell Synchronous
4
SLUU237 – January 2006
Switch-Mode Charger With System Power Selector and SMBus SBS-Like Interface