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Texas Instruments bq50002, User Manual

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User's Guide

SLVUAJ7 – October 2015

bq50002 Wireless Power TX EVM

The bqTESLA™ wireless power transmitter evaluation module from Texas Instruments is a high-
performance, easy-to-use development module for the design of wireless power solutions. The bq50002
evaluation module (EVM) provides all the basic functions of a Qi-compliant, wireless charger pad. The 5-V
input, single coil transmitter enables designers to speed the development of their end-applications. The
EVM supports both the Qi WPC 1.0, WPC 1.1, and WPC 1.2 receivers and will support output power up to
5 W.

Contents

1

Applications

...................................................................................................................

2

2

bq50002EVM-607 Electrical Performance Specifications

..............................................................

2

3

Modifications

..................................................................................................................

3

4

Connector and Test Point Descriptions

...................................................................................

3

4.1

Input/Output Connections

..........................................................................................

3

4.2

Test Point Descriptions

............................................................................................

4

5

Schematic and Bill of Materials

............................................................................................

8

6

Test Setup

...................................................................................................................

11

6.1

Equipment

..........................................................................................................

11

6.2

Equipment Setup

..................................................................................................

12

6.3

EVM Procedure

....................................................................................................

13

7

bq50002EVM-607 Assembly Drawings and Layout

...................................................................

18

8

Reference

...................................................................................................................

20

List of Figures

1

bq50002EVM-607 Schematic

..............................................................................................

8

2

Connections of the EV2400 kit

...........................................................................................

13

3

bqStudio Window

...........................................................................................................

14

4

Device ID

....................................................................................................................

14

5

Efficiency vs Power, bq50002EVM-607 TX and bq51013BEVM-764 Receiver

....................................

16

6

Start Up

......................................................................................................................

16

7

Thermal Performance

......................................................................................................

17

8

Assembly Top

...............................................................................................................

18

9

Inner Layer 1

................................................................................................................

19

10

Inner Layer 2

................................................................................................................

19

11

Bottom Layer

................................................................................................................

20

List of Tables

1

bq50002EVM-607 Electrical Performance Specifications

..............................................................

2

2

Bill of Materials

...............................................................................................................

9

bqTESLA is a trademark of Texas Instruments.
Avid is a registered trademark of Avid Technology, Inc..

1

SLVUAJ7 – October 2015

bq50002 Wireless Power TX EVM

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

           

Summary of Contents for bq50002

Page 1: ... Point Descriptions 3 4 1 Input Output Connections 3 4 2 Test Point Descriptions 4 5 Schematic and Bill of Materials 8 6 Test Setup 11 6 1 Equipment 11 6 2 Equipment Setup 12 6 3 EVM Procedure 13 7 bq50002EVM 607 Assembly Drawings and Layout 18 8 Reference 20 List of Figures 1 bq50002EVM 607 Schematic 8 2 Connections of the EV2400 kit 13 3 bqStudio Window 14 4 Device ID 14 5 Efficiency vs Power bq...

Page 2: ...rcuit Standard WPC A11 type transmitter coil with no magnet LED and audio indication of power transfer 2 bq50002EVM 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 bq50002EVM 607 Electrical Performance Specifications Parameter Notes and Conditions Min Typ Max Unit Inpu...

Page 3: ...e described in Section 4 1 1 through Section 4 1 4 4 1 1 J1 VIN Input power 5 V 500 mV return at J3 4 1 2 J2 USB Input USB input connection 4 1 3 J3 GND Return for input power input at J1 4 1 4 J4 Serial Interface I2 C interface connection to communicate with the IC Used with bqStudio tool to monitor behavior 3 SLVUAJ7 October 2015 bq50002 Wireless Power TX EVM Submit Documentation Feedback Copyri...

Page 4: ...om coil for DEMOD Channel 1 4 2 6 TP6 SW1 Switch node of the half bridge MOSFETs 4 2 7 TP7 GND Low noise ground test point TP 4 2 8 TP8 Low Noise Analog Ground Low noise ground TP 4 2 9 TP9 GND Low noise ground TP 4 2 10 TP10 GND Low noise ground TP 4 2 11 TP11 PGND Return for SW1 4 2 12 TP12 DMIN2 Modulation signal input from coil for DEMOD Channel 2 4 2 13 TP13 PEAK Peak detection 4 2 14 TP14 SW...

Page 5: ...transfer when PWM_CTRL is low 4 2 20 TP20 CSO Output of the current sense amplifier 4 2 21 TP21 DMOUT1 Demodulated 2 kHz bit stream from demodulation channel 1 4 2 22 TP22 DMOUT2 Demodulated 2 kHz bit stream from demodulation channel 2 4 2 23 TP23 BUZZ DC output when power transfer is started Can be used to drive a DC style buzzer or LED See data sheet for more information 4 2 24 TP24 LED_B Status...

Page 6: ...sed 4 2 34 TP34 Reserved IC Pin 5 Unused 4 2 35 TP35 Unused IC Pin 7 Leave this pin open 4 2 36 TP36 Unused IC Pin 25 Leave this pin open 4 2 37 TP37 Unused IC Pin 27 Leave this pin open 4 2 38 TP38 Unused IC Pin 17 Leave this pin open 4 2 39 TP39 Unused IC Pin 6 Leave this pin open 4 2 40 TP40 Unused IC Pin 24 Leave this pin open 4 2 41 TP41 Unused IC Pin 26 Leave this pin open 4 2 42 TP42 Unused...

Page 7: ...47 TP47 3 V Rail Resistor Divider 4 2 48 TP49 Floating Test Point 4 2 49 TP50 Floating Test Point 4 2 50 TP51 GND 4 2 51 TP52 Floating Test Point 4 2 52 TP53 Floating Test Point 4 2 53 TP54 GND 4 2 54 TP55 Floating Test Point 4 2 55 TP56 Floating Test Point 4 2 56 TP57 GND 7 SLVUAJ7 October 2015 bq50002 Wireless Power TX EVM Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporat...

Page 8: ... 24 Unused 25 Unused 26 Unused 27 SDA 28 SCL 29 VCORE 30 DVSS 31 DVCC 32 FLIM 33 LED_MODE 34 FOD_THR 35 AVSS 36 DRV_EN 37 PWM_CTRL 38 AVSS 39 AVCC 40 QFN PAD 41 U1 bq500511 TP22 DNP TP21 DNP GND TANK TP16 TANK 10 0k R20 GND GND GND GND 200k R23 100k R27 100k R21 24 9k R25 100k R22 80 6k R26 0 1µF C27 TP30 DNP TP27 DNP TP29 DNP TP28 DNP 76 8k R13 10 0k R14 0 1µF C28 DNP GND TP31 DNP 1 FOD THR R23 R...

Page 9: ...GKT Lite On D2 D3 2 100V Diode Switching 100V 0 2A SOD 323 SOD 323 MMDL914 TP Micro Commercial Components D4 1 Orange LED Orange SMD 1 6x0 8x0 8mm LTST C190KFKT Lite On D5 1 Red LED Red SMD Red LED 1 6x0 8x0 8mm LTST C190CKT Lite On H1 1 Cover Plastic Polycarbonate 2 75 Square 0 93 thick MCH002 Any H2 H5 H8 H11 4 Standoff Nylon Female to Male 4 40 x 1 4 4 40 x 1 4 4800 Keystone H3 H6 H9 H12 H17 H2...

Page 10: ...ES 100 k 1 0 1 W 0603 0603 RC0603FR 07100KL Yageo America R23 1 200k RES 200 k 1 0 1 W 0603 0603 RC0603FR 07200KL Yageo America R25 1 24 9k RES 24 9 k 1 0 1 W 0603 0603 RC0603FR 0724K9L Yageo America R26 1 80 6k RES 80 6 k 1 0 1 W 0603 0603 RC0603FR 0780K6L Yageo America TP3 1 Red Test Point Compact Red TH Red Compact Testpoint 5005 Keystone TP4 TP7 TP8 TP9 TP10 7 Black Test Point Multipurpose Bla...

Page 11: ...ons Recommend selection and use of an external power supply which meets TI s required minimum electrical ratings in addition to complying with applicable regional product regulatory safety certification requirements such as by example UL CSA VDE CCC PSE and so forth 6 1 3 Meters Monitor the output voltage at the bq51013BEVM 764 test point TP7 with a voltmeter Monitor the input current into the loa...

Page 12: ...is connected between J3 OUT and J4 GND of the RX Set the load resistance to 10 kΩ or 0 mA 6 2 4 Jumper Settings Unit Under Test PWR607 No jumper installed bqTesla Receiver HPA764 JP1 EN1 and LOW shorted HPA764 JP2 EN2 and LOW shorted HPA764 JP3 TS and DIS shorted HAP764 JP6 ILIM and FIX shorted HPA764 R3 set to 0 full CCW 6 2 5 Meters Connect ammeter to measure UUT input current from power supply ...

Page 13: ...ith red and black banana plugs and green white wires shorted together Note red lead will connect to pin 1 and black lead will connect to pin 5 Test cable should be 6 to 12 in long 6 3 EVM Procedure 6 3 1 Set Input Voltage Verify that the power supply is adjusted and connected according to Section 6 1 2 Verify that the jumper settings are completed according to Section 6 2 4 13 SLVUAJ7 October 2015...

Page 14: ...ger_1_00_bq50002 bqz and click finish The main window of the software is shown in Figure 3 Figure 3 bqStudio Window Place your mouse on the Device Version Value cell the device version should be 0 1 2 2745 as shown in Figure 3 Figure 4 Device ID Turn off power supply And disconnect the EV2400 box from the EVM and the computer 14 bq50002 Wireless Power TX EVM SLVUAJ7 October 2015 Submit Documentati...

Page 15: ... TP7 should be 4 9 V to 5 1 V 3 On HPA764 voltage at TP12 should be 7 0 V to 7 5 V voltage will fluctuate 4 On UUT PWR607 during power transfer HPA764 D1 ON a LED D6 flashing Green b Input current should be less than 300 mA 6 3 5 Receiver In Place 1 0 A Load With the HPA764 in place on the PWR607 above TX Coil set output load current to 950 mA to 1050 mA Input voltage at UUT J1 should be 4 9 V to ...

Page 16: ...fficiency vs Power bq50002EVM 607 TX and bq51013BEVM 764 Receiver 6 3 7 Start Up Receiver Placed on Transmitter The transmitter will send an analog ping about every 400 ms If a receiver is present it will power up and reply then begin power transfer Figure 6 is a scope capture of the bq50002 EVM beginning a power transfer with the bq51013B EVM Figure 6 Start Up 6 3 8 TS Fault With HPA764 and PWR60...

Page 17: ...tion is adjusted using FOD_CAL resistor R26 This calculation changes with external component changes in the power path such as resonant capacitors and TX coil Recalculation of R26 and R27 is required Receiver Reported Power The receiver calculates and reports power it receives in the message packet Received Power Packet The FOD threshold on the EVM is set to 400 mW when R27 is set to 100 kΩ Increa...

Page 18: ...rained systems Gerber files are available for download from the EVM product folder bq50002EVM 607 A 4 layer PCB design is recommended to provide a good low noise ground plane for all circuits A 2 layer PCB presents a high risk of poor performance Grounding between the bq50002 GND pins and filter capacitor returns should be a good low impedance path Coil Grounding A ground plane area under the coil...

Page 19: ...002EVM 607 Assembly Drawings and Layout Figure 9 Inner Layer 1 Figure 10 Inner Layer 2 19 SLVUAJ7 October 2015 bq50002 Wireless Power TX EVM Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 20: ...the bq50002EVM 607 low power wireless power evaluation kit from Texas Instruments visit the product folder on the TI Web site at http www ti com product bq50002 20 bq50002 Wireless Power TX EVM SLVUAJ7 October 2015 Submit Documentation Feedback Copyright 2015 Texas Instruments Incorporated ...

Page 21: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 22: ... by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la rég...

Page 23: ... connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Page 24: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 25: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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