Texas Instruments bq501210, User Manual, Page: 2 / 29

Applications
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2 SLVUAO6 – June 2016
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bq501210 bqTESLA™ Wireless Power TX EVM
List of Tables
1 bq501210EVM-756 Electrical Performance Specifications
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2
2 Bill of Materials
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12
1 Applications
The bq501210EVM-756 evaluation module demonstrates the transmitter portion of the bqTESLA™
wireless power system. This transmitter EVM is a complete transmitter-side solution that powers a
bqTESLA receiver. The EVM requires a single 15-V to 19-V power supply capable of up to 2.0 A to
operate and combines the transmitter electronics, input power circuit, LED indicators, and the transmitting
coil on the single printed-circuit board (PCB). The EVM is a non-space optimized, open design allowing
easy access to key points of the electrical schematic.
This EVM has the following features:
• Qi-Certified WPC v1.2 for 15-W operation with a WPC v1.2 15-W receiver
• 5-W solution for WPC v1.1 or v1.2 Baseline Power Profile (BPP) receivers
• 15-V to 19-V input and fixed operating frequency for full 15-W results
• 12-V input for reduced power (> 10 W) solutions
• Enhanced Foreign Object Detection (FOD) with FOD ping detecting objects prior to power transfer
• WPC v1.2 FOD, WPC v1.1 FOD, and WPC v1.0 Parasitic Metal Object Detection (PMOD)
• Transmitter-coil mounting pad providing the correct receiver interface
• Compact power section design using the bq500101 NexFET power stage
• High-accuracy current sense design using the bq500100 current monitor
• WPC MP-A5 type transmitter coil
• LED and audio indication of power transfer
2 bq501210EVM-756 Electrical Performance Specifications
Table 1 provides a summary of the EVM performance specifications. All specifications are given for an
ambient temperature of 25°C.
Table 1. bq501210EVM-756 Electrical Performance Specifications
Parameter Notes and Conditions Min Typ Max Unit
Input Characteristics
V
IN
Input voltage
P
OUT
up to 15 W 15 19
V P
OUT
up to 10 W 12 19
P
OUT
up to 4.5 W 4.5 5.0 19
I
IN
Input current V
IN
= Nom, I
OUT
= 1.5 A at 10 V 2.0 A
Input no-load current V
IN
= Nom, I
OUT
= 0 A 90 mA
Input stand-by current V
IN
= Nom 4 mA
Output Characteristics – WPC v1.2 10-V Nominal Output Receiver
V
OUT
Output voltage V
IN
= Nom, I
OUT
= 1.5A , V
OUT
= 10 V 9.7 10.0 10.3 V
I
OUT
V
IN
= Min to Max V
IN
= Min to Max, V
OUT
= 10 V 0 1.5 A
Systems Characteristics
f
SW
Switching frequency
during power transfer
V
IN
at startup > 6 V 130
kHz
V
IN
at startup < 6 V 110
V
IN
at startup < 6 V followed by HVDCP change from 5 V to
9 V or 12 V
130
η pk Peak efficiency V
IN
= Nom, P Out RX = 13.0 W 84 %
η Full-load efficiency V
IN
= Nom, I
OUT
= Max 84 %