Test Procedure
5.4
Procedure
5.4.1
Turn ON Operation and Operation at 500-mA Load
•
Turn ON transmitter power supply (19 V)
•
Transmitter: Verify LED D2 is
ON
•
UUT: Adjust load current to 700 mA, ±50mA
•
Put the receiver EVM on the Transmitter coil and align them correctly
•
After 5 seconds, verify that:
1. Transmitter: Status LED D5 should be green flashing for approximately 1 second
2. The transmitter beeps
3. Transmitter: LED D2 still ON
4. Receiver: LED D1 is ON
•
UUT: Verify that Vout is 6.9 V to 7.1 V (between TP7 and J4)
•
UUT: Verify that the rectified voltage is 7.4 V to 7.05 V (between TP12 and TP13) (
Note:
a modulation
signal is present on this voltage every 250 ms and may cause fluctuation in the reading, use lower
value or base line)
5.4.2
Efficiency Test (500-mA Load)
•
Verify the input current to TX is less than 260 mA, with input voltage at 19 V
DC
•
Turn OFF Transmitter Power Supply (19)
5.4.3
Operation (1-mA Load)
•
Turn ON transmitter power supply (19 V)
•
Transmitter: Verify LED D2 is
ON
•
UUT: Adjust load current to 1mA, ±200 µA
•
Put the receiver EVM on the transmitter coil and align them correctly
•
After 5 seconds verify that:
1. Transmitter: Status LED D5 is flashing green for approximately 1 second
2. The transmitter beeps
3. Transmitter: LED D2 still
ON
4. Receiver: LED D1 is
ON
•
UUT: Verify that Vout is 6.9 V to 7.1 V (between J3 or TP7 and J4)
•
UUT: Verify that rectified voltage should be 10 V to 7.5 V (between TP12 and TP13) (
Note:
a
modulation signal is present on this voltage every 250 ms and may cause fluctuation in the reading,
use lower value or base line)
5.4.4
Efficiency Test (1-mA Load)
•
Verify the input current to TX is less than 80 mA, with the input voltage at 19 V
DC
•
Turn
OFF
Transmitter Power Supply (19)
5.4.5
Operation (700-mA Load)
•
UUT: Adjust load current to 700 mA, ±50 mA
•
UUT: Verify that V
OUT
is 6.9 V to 7.1 V (between J3 or TP7 and J4)
•
UUT: Verify that the rectified voltage should be 7.5 V to 7.05 V (between TP12 and TP13) (Note: a
modulation signal is present on this voltage every 250 ms and may cause fluctuation in the reading,
use lower value or base line)
8
bq51010BEVM-764 Evaluation Module (WCSP Package)
SLUUAE3A – August 2013 – Revised December 2013
Copyright © 2013, Texas Instruments Incorporated
