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13

dc2181afb

DEMO MANUAL 

 DC2181A-A/B

Information  furnished  by  Linear  Technology  Corporation  is  believed  to  be  accurate  and  reliable.  

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

schematic Diagram

4

4

3

3

2

2

1

1

4

4

3

3

2

2

1

1

UNLESS NOTED: RESISTORS: OHMS, 0402, 1%, 1/16W CAPACITORS:  uF, 0402, 10%,  50V

8V - 38V

4.75V - 5.25V

5V OUT

FC6041

FC6041

MKS02

MKS02

OP

T

OP

T

5.0u

H

5%

Lx

3

DEMO CIRCUIT 1968A

1

1

BASIC INDUCTIVE TRANSMITTER WITH PRE - REGULATOR

N/A

NC

GEORGE B.

9 -

 17 - 1

3

LTC4120EUD-4.2 / LTC4120EUD

SI

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DA

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APPROVALS

PCB

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TECHNOLOGY

Fax: (408)434-0507

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ilp

itas, CA 9503

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Phone: (408)432-1900

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LTC

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www.linear.com

GEORGE B.

PRODUCTION

 FA

B

3

9 -

 17 - 1

3

-

REVISION HISTORY

ET

AD

NOI

TPI

RC

SE

D

APPROVED

ECO

REV

D5 DFLS240L 40V 2A

1

2

M1

Si4108DY-T1-GE3

4

1

7

8

5

6

2

3

U1

LT3480EDD

1

2

3

4

5

7

6

8

9

10

11

BD

BOOST

SW

VIN

RUN/SS

PG

SYNC

cV

BF

RT

GND

M4 2N7002L

3

1

2

C5 0.01uF

D2 NSR10F40NXT5G

E2

GND

C9 0.47uF 25V 0603

D3

NSR10F40NXT5G

R10 100k

R8 150k 5%

C10 22uF

6.3V 0805

20%

R1

100 5%

R5 20k

E3

VCC

R2

100 5%

C7 0.068uF 50V 0603

C6 4.7uF

1206

50V

D6

ON

L2 68uH

16V

D1 BZX84C16

E5

Cy

R4 40.2k

R7 536k

E4

GND

Cx4 0.15uF 2.5%

M3

Si2333DS

1

2

3

L3

4.7uH

L1 68uH

E1

HVIN

R3 150k 5%

E6

Cx

Cx3 0.15uF 2.5%

R6 100k

M2 Si4108DY-T1-GE3

4

1

7

8

5

6

2

3

16V

D4

BZX84C16

Cx1 0.15uF 2%

C8 330pF 5%

R9 1K

5%

Cx2 0.15uF 2%

C4 0.01uF

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Summary of Contents for DC2181A-A

Page 1: ...f their respective owners Performance Summary Board Photo FEATURED PART DC2181A A LTC4120EUD 4 2 Fixed Output DC2181A B LTC4120EUD Adjustable Output Design files for this circuit board are available a...

Page 2: ...lacing a 3 6 resistor in parallel with a normal supply the supply can absorb up to 1A at 3 6V 3 Place the DC2181A receive board on the transmitter as shown in Figure 5c if you are using the PowerByPro...

Page 3: ...o Board Mounted on PowerByProxi s ProxiPoint Transmitter Note All connections from equipment should be Kelvin connected directly to the board pins which they are connected on this diagram and any inpu...

Page 4: ...Demo Board Mounted on DC1968A Wireless Power Basic Transmitter Note All connections from equipment should be Kelvin connected directly to the board pins which they are connected on this diagram and a...

Page 5: ...V DIV VCy 10V DIV DC2181A F07 The blue and green traces are the drains of the transmit ter MOSFETs M1 and M2 see Schematic Basic Inductive Transmitter with Pre Regulator respectively The red trace is...

Page 6: ...rrent The blue trace is the charge current into the bat tery and the red trace is the voltage at VIN on the receiver board VIN is about 25V while the LTC4120 delivers 1 5W at a distance of 8mm to the...

Page 7: ...101303 AE1 wireless power receive antenna shipped with DC2181 The manufacturers can be contacted at Inter Technical www inter technical com search for LTC4120 TDK www tdk components com W rth http kat...

Page 8: ...tional Demo Board Circuit Components 1 3 C6 C8 C9 CAP CHIP X7R 0 01 F 10 25V 0402 TDK C1005X7R1E103K 2 2 C7 C10 CAP CHIP X5R 1 F 10 16V 0402 TDK C1005X5R1C105K 3 1 D4 DIODE ZENER 39V 5 1W PowerDI123 D...

Page 9: ...Y CHARGER 3mm 3mm QFN16 LINEAR TECHNOLOGY LTC4120EUD ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER PART NUMBER Hardware For Demo Board Only 1 4 E3 E4 E7 E8 TURRET 0 091 MILL MAX 2501 2 00 80 00 00...

Page 10: ...E3 15 1 M3 MOSFET SMT P CHANNEL 12V 32m SOT23 VISHAY Si2333DS 16 1 M4 MOSFET SMT N CHANNEL 60V 7 5 115mA SOT23 ON SEMI 2N7002L 17 2 R1 R2 RES CHIP 100 5 1 16W 0402 VISHAY CRCW0402100RJNED 18 2 R3 R8 R...

Page 11: ...TIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 3 DEMO CIRCUIT 2181A A B 1 2 400mA WIRELESS SYNCHRONOUS BUCK BATTERY CHARGER N A LTC4120EUD 4 2 LTC4120EUD NC GEORGE B 7 17...

Page 12: ...EMO CIRCUIT 2181A A B 2 2 BAR GRAPH FOR 400mA WIRELESS SYNCHRONOUS N A LTC4120EUD 4 2 LTC4120EUD NC GEORGE B BUCK BATTERY CHARGER 7 17 14 SIZE DATE V E R O N C I SHEET OF TITLE APPROVALS PCB DES APP E...

Page 13: ...ARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC...

Page 14: ...ERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The...

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