Texas Instruments bq50002AEVM-607, User Manual, Page: 2 / 25

Applications
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2 SLUUBJ2 – October 2016
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bq50002A Wireless Power TX EVM
1 Applications
The bq50002AEVM-607 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 5-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 open design allows easy access to key points of the electrical
schematic.
This EVM has the following features:
• Qi-Certified WPC 1.2 solution for 5-W operation
• 5-V input and fixed operation voltage
• Enhanced Foreign Object Detection (FOD)
• WPC 1.2 FOD
• Transmitter-coil mounting pad providing the correct receiver interface
• Highly-integrated analog front end including LDO, FETs, drivers, current sense amplifier, and de-
modulation circuit
• Standard WPC A11-type transmitter coil with no magnet
• LED and audio indication of power transfer
2 bq50002AEVM-607 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. bq50002AEVM-607 Electrical Performance Specifications
Parameter Notes and Conditions Min Typ Max Unit
Input Characteristics
V
IN
Input voltage 4.5 5 5.5 V
I
IN
Input current V
IN
= Nom, I
OUT
= 1 A at 5 V 1.4 A
Input no-load current V
IN
= Nom, I
OUT
= 0 A 165 mA
Input stand-by current V
IN
= Nom 4 mA
Output Characteristics – Receiver bq51013BEVM-764
V
OUT
Output voltage V
IN
= Nom, I
OUT
= 1 A , V
OUT
= 5 V 4.95 5.00 5.04 V
Output ripple V
IN
= Nom, I
OUT
= 1.0 A, V
OUT
= 5 V 200 mV
PP
I
OUT
V
IN
= Min to Max V
IN
= Min to Max, V
OUT
= 5 V 0 1.5 A
Systems Characteristics
F
S
Switching frequency During power transfer 110 205 kHz
η
pk Peak efficiency V
IN
= Nom, P Out RX = 3 W 74 %
η
Full-load efficiency V
IN
= Nom, I
OUT
= Max 71 %