Texas Instruments bq51010BEVM-764, Руководство пользователя, Страница: 2 / 26

Considerations with this EVM
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12 bq51010BEVM-764 Bottom Assembly
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List of Tables
1 bq51010BEVM-764 Electrical Performance Specifications
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2
2 Pin Description
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3 bq51010BEVM-764 Bill of Materials
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1 Considerations with this EVM
The bq51010BEVM-764 evaluation module (HPA764-005) demonstrates the receiver portion of the
bqTESLA™ wireless power system. This receiver EVM is a complete receiver-side solution that produces
7-V output at up to a 720-mA load (5 W).
• The bqTESLA receiver is used in any number of low-power battery portable devices such as a power
supply to a direct battery charger. With contact-free charging capability, no connections to the device
are needed.
• Output voltage of 7 V up to 720-mA charge current
• External adapter switchover
• 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
• Option to adjust the max output current using variable resistor R16
2 Modifications
Refer to the datasheet when changing components ( SLUSBB8 ). 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.
3 Recommended Operation Condition
Table 1 provides a summary of the bq51010BEVM-764 performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. bq51010BEVM-764 Electrical Performance Specifications
Parameter Test Condition MIN TYP MAX UNIT
V
IN
Input voltage range Typical Vrect Voltage at TP12 4 10 V
Vadapter Adapter input voltage 4 7 20 V
OVP Input overvoltage protection Voltage at V-rectified 750 mA
I
OUT
Output current range Current limit programming range 750 mA
V
OUT
Output voltage I
LOAD
= 700 mA 7 V
Fs Switching frequency 110 205 kHz
Efficiency AC-AC efficiency 76 %
2 bq51010BEVM-764 Evaluation Module (WCSP Package) SLUUAE3A – August 2013 – Revised December 2013
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