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Applications
List of Tables
1
bq51013AEVM-765 Electrical Performance Specifications
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2
Bill of Materials
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1
Applications
The bq51013AEVM-765 evaluation module (EVM) demonstrates the receiver portion of the bqTESLA™
wireless power system. This receiver EVM is a complete receiver-side solution that produces 5 V out at up
to 1 A when coupled with the bqTESLA™ transmitter. The bq51013AEVM-765 device shown on this EVM
along with external components that support the device for a complete solution.
•
The bqTESLA™ receiver can be used in any number of low-power battery portable devices as a power
source for charging. With contact-free charging capability, no connections to the device are needed.
•
Output voltage of 5 V up to 1 A
•
External adapter switchover and control circuit
•
Low-profile, external pick-up coil
•
Frame is configured to provide correct receiver to transmitter spacing.
•
Room above coil for testing with battery, key for tuning
•
Adjustable resistor R16 can be used to set max output current
2
bq51013AEVM-765 Electrical Performance Specifications
provides a summary of the bq51013AEVM-765 performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. bq51013AEVM-765 Electrical Performance Specifications
Parameter
Notes and Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
V
IN
Input Voltage
Typical V-rectified voltage at TP12
4
5.5
8
V
V
ADAPTER
Adapter Input Voltage
4
7
20
V
Input Overvoltage
Voltage at V-rectified
15
V
OVP
Protection
OUTPUT CHARACTERISTICS
V
OUT
V J3 to J4
5
V
I
OUT
I J3
1
A
SYSTEMS CHARACTERISTICS
F
S
Switching Frequency
110
205
kHz
Eff
Efficiency
Output current 500 mA
74
%
3
Modifications
See the data sheet (
) when changing components. To aid in such customization of the EVM, the
board was designed with devices having 0603 or larger footprints. A real implementation likely occupies
less total board space.
Note that changing components can improve or degrade EVM performance.
4
Connector and Test Point Descriptions
4.1
Input/Output Connections
The connections points are described in the following paragraphs.
2
bq51013AEVM-765 Evaluation Module
SLUU911 – June 2012
Copyright © 2012, Texas Instruments Incorporated