Texas Instruments bq51013AEVM-764 Integrated Wireless Power Receiver Solution, Qi Evaluation Module (WCSP Package) BQ510 BQ51013AEVM-764 Hoja De Datos
Los códigos de productos
BQ51013AEVM-764
0%
10%
20%
30%
40%
50%
60%
70%
80%
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
Power (W)
E
ff
ic
ie
n
c
y
(%
)
R-Ilim 250
R-Ilim 500
R-Ilim 750
TP12-V-RECT
TP7-V-OUT
EN1
I-OUT
Test Setup
6.7
Disable Shutdown
The jumper JP1 (EN1) sends an End Power Transfer to Transmitter, Shutdown:
•
With unit operating normally, move jumper JP1 from Low to High position.
•
LED D1 turn OFF; output voltage drops to 0 V.
•
Return jumper to Low position, RX restarts.
Figure 7. Equipment Shutdown Wireless Disable
6.8
System Efficiency
The efficiency is measured from input of TX EVM, HPA689 to output of RX EVM, HPA764A with 19-V
input. Due to the communication packet that occurs at an approximate 250-ms rate, averaging of input
current and voltage is required for good accuracy. Note that Dynamic Efficiency Scaling will improve
efficiency at lower loads for lower total output currents. This is demonstrated with the higher value for R I-
lim, resulting in lower total output current. See data sheet for additional information regarding Dynamic
Efficiency Scaling.
input. Due to the communication packet that occurs at an approximate 250-ms rate, averaging of input
current and voltage is required for good accuracy. Note that Dynamic Efficiency Scaling will improve
efficiency at lower loads for lower total output currents. This is demonstrated with the higher value for R I-
lim, resulting in lower total output current. See data sheet for additional information regarding Dynamic
Efficiency Scaling.
Figure 8. bq51013AEVM-764 Efficiency vs Output Power
12
bq51013AEVM-764 Evaluation Module (WCSP Package)
SLUU910B – April 2012 – Revised October 2012
Copyright © 2012, Texas Instruments Incorporated