Test Procedure
VXXX :
External voltage supply name (VADP, VTS, V
OUT
)
LOADW:
External load name (LOADR, LOADI)
V(TPyy):
Voltage at internal test point TPyy. For example, V(TP02) means the voltage at TP02.
V(Jxx):
Voltage at header 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 header XX.
Jxx(BBB):
Terminal or pin BBB of header xx.
JPx ON :
Internal jumper Jxx terminals are shorted.
JPx OFF:
Internal jumper Jxx terminals are open.
JPx (-YY-) ON:
Internal jumper Jxx adjacent terminals marked as YY are shorted.
Assembly drawings have locations for jumpers, test points, and individual components.
6.2
Recommended Test Equipment
The following equipment is needed to complete this test procedure:
Power Supplies
•
Power Supply #1 (PS #1) capable of supplying 19 V at 1 A is required
•
Power Supply #2 (PS #2) capable of supplying 5 V at 1 A is required
•
Power Supply #3 (PS #3) capable of supplying 5 V at 1 A is required
Loads
•
A resistive load or electronic load that can be set to 5
Ω
/1000 mA, 10
Ω
/500 mA, and 5 k
Ω
/1 mA. The
power rating should be 5 W.
Meters
•
Two DC voltmeters and two DC ammeters
Oscilloscopes
•
Not required
bqTesla Transmitter
•
The HPA689 transmitter or equivalent is used for the final test.
Recommended Wire Gauge
•
For proper operation, TI recommends 22-AWG wire.
6.3
Equipment Setup
The following items ensure proper equipment setup:
Test Set Up
•
The final assembly will be tested using a bqTesla transmitter – provided (HPA689). Input voltage to the
transmitter is set to 19 VDC ±200 mV, with a current limit of 1.0 A.
•
Connect power supply to J1 and J2 of the transmitter, HPA689
•
Set power supply to OFF
•
Place unit under test (UUT) on the transmitter coil
•
UUT will be placed in the center of the HPA689 TX coil. Other bqTesla transmitter base units are also
acceptable for this test (ensure the correct input voltage is applied).
Load
•
The load is connected between J3-OUT and J4-GND of the UUT
7
SLUUB03 – April 2014
bq51020EVM (5-W WPC) Integrated Wireless Receiver Power Supply
Copyright © 2014, Texas Instruments Incorporated
