Analog Devices LINEAR DC2769A-A-KIT Demo Manual
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Analog Devices LINEAR DC2769A-A-KIT Demo Manual

10ma wireless li-ion charger 10ma demonstration kit
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DESCRIPTION
DC2769A-A-KIT is a kit of the DC2771A-A transmitter
board, featuring
LTC4124, and the DC2774A application-sized receiver
board featuring LTC4124. The DC2775A-A receiver can
KIT CONTENTS
1 × DC2771A-A (LTC6990) Transmitter Demo Board
1 × DC2775A-A (LTC4124) Receiver Demo Board
2 × DC2774A (LTC4124) Application-Sized Receiver Demo Board
PERFORMANCE SUMMARY
SYMBOL
PARAMETER
V
DC2771A-A Voltage Input
IN
I
DC2771A-A V
IN
V
DC2775A Battery Charge Voltage
BAT
V
DC2775A-A Battery Charge Voltage
BAT
I
DC2775A-A Charge Current
BAT
Air-Gap
Separation Between L
f
DC2771A-A Drive Frequency
DRIVE
f
DC2771A-A Resonant Tank Frequency
TX_TANK
f
DC2775A-A Resonant Tank Frequency
RX_TANK
BOARD PHOTO
Figure 1. DC2771A-A Picture
Arrow.com.
Downloaded from
LTC
6990, the DC2775A-A, featuring
®
Current
IN
and L
TX
RX
10mA Wireless Li-Ion Charger
10mA Demonstration Kit
charge a single Li-Ion battery at up to 10mA with an air gap
of 0.5mm between the transmit and receive coils.
Design files for this circuit board kit are
All registered trademarks and trademarks are the property of their respective owners.
Specifications are at T
= 25°C
A
CONDITIONS
I
≤ 100mA
VIN
V
= 5V
IN
V
= V
, V
= GND
SEL1
CC
SEL2
V
= HI, V
= HI
SEL1
SEL2
V
= HI, V
= LO
SEL1
SEL2
V
= LO, V
= HI
SEL1
SEL2
V
= LO, V
= LO
SEL1
SEL2
V
= 4.0V, I
= I
= GND
BAT
SEL1
SEL2
Figure 2. DC2775A-A Picture
DEMO MANUAL
DC2769A-A-KIT
LTC6990/LTC4124
available.
MIN
TYP
MAX
4.5
5.5
100
4.2
4.35
4.2
4.1
4.0
10
0
0.5
0.75
1
1.4
1
Figure 3. DC2774A Picture
UNITS
V
mA
V
V
V
V
V
mA
mm
MHz
MHz
MHz
Rev. 0
1

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Summary of Contents for Analog Devices LINEAR DC2769A-A-KIT

  • Page 1 DEMO MANUAL DC2769A-A-KIT LTC6990/LTC4124 10mA Wireless Li-Ion Charger 10mA Demonstration Kit DESCRIPTION DC2769A-A-KIT is a kit of the DC2771A-A transmitter charge a single Li-Ion battery at up to 10mA with an air gap board, featuring 6990, the DC2775A-A, featuring of 0.5mm between the transmit and receive coils. ®...

  • Page 2: Quick Start Procedure

    DEMO MANUAL DC2769A-A-KIT QUICK START PROCEDURE Refer to Figure 5 to 8 for the proper measurement equip- 5. Set PS1 = 3.7V. If PS2 is used instead of Micro- ment setup, DC2775A-A mounting on DC2771A-A, and USB, set PS2 = 5V and turn on both power supplies follow the procedure below: simultaneously.
  • Page 3 DEMO MANUAL DC2769A-A-KIT QUICK START PROCEDURE BATTERY EMULATOR – RBAT1 3.7V DC 0.5A – Figure 5. DC2775A-A Top POWER DC2771A-A 5.0V DC USING MICRO-USB – 0.1A CABLE TO HOST OR A 5V ADAPTER. CONNECT TO A 5V POWER SUPPLY TO V AND GND TURRENTS Figure 6.

  • Page 4: Hardware Setup

    DEMO MANUAL DC2769A-A-KIT HARDWARE SETUP Figure 8. DC 2774A on top of DC2771A-A in Operation Figure 9. Measuring Input or Output Ripple Note: All connections from equipment should be Kelvin connected directly to the board pins which they are connected on this diagram and any input or output leads should be twisted pair.

  • Page 5: Operation

    DEMO MANUAL DC2769A-A-KIT OPERATION The DC2769A-A-KIT demonstrates operation of a mag- DC2775A-A – Wireless Power Receiver Board netically coupled resonant Wireless Power Transfer (WPT) Featuring the LTC4124 system. The LTC6990 based transmitter provides efficient The DC2775A-A demo board implements a parallel res- wireless power for the LTC4124 receiver to charge the onant LC circuit that connects the LTC4124 between ACIN Li-Ion battery.

  • Page 6: Parts List

    RES., 2.2k, 5%, 1/16W, 0402, AEC-Q200 VISHAY, CRCW04022K20JNED RES., 1Ω, 1%, 1/16W, 0402, ±100ppm, AEC-Q200 VISHAY, CRCW04021R00FKED OSCILLATOR, TIMERBLOX: VCO, 5pF, 90ppm, DFN-5 ANALOG DEVICES, INC., LTC6990CDCB#PBF Additional Demo Board Circuit Components LED, RED, WATER-CLEAR, 0603 LITE-ON, LTST-C193KRKT-5A Hardware: For Demo Board Only E1, E2 TEST POINT, TURRET, 0.064"...
  • Page 7 Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
  • Page 8 DEMO MANUAL DC2769A-A-KIT SCHEMATIC DIAGRAM Rev. 0 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 9 DEMO MANUAL DC2769A-A-KIT SCHEMATIC DIAGRAM Rev. 0 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 10 Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY.

This manual is also suitable for:

Linear ltc6990Linear ltc4124

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