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dc2181afb

DEMO MANUAL 

 DC2181A-A/B

parts list

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

DC2181A-A Required Circuit Components

1

0

R9

NO LOAD. SMD 0402

2

1

R10

RES, CHIP, 0Ω JUMPER, 1/16W, 0402

VISHAY, CRCW04020000Z0ED

3

1

U1

400mA WIRELESS SYNCHRONOUS BUCK BATTERY 

CHARGER, 3mm × 3mm QFN16

LINEAR TECHNOLOGY, LTC4120EUD-4.2

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

DC2181A-B Required Circuit Components

1

1

R9

RES, CHIP, 1.40M, ±1%, 1/16W, 0402

VISHAY, CRCW04021M40FKED

2

1

R10

RES, CHIP, 1.05M, ±1%, 1/16W, 0402

VISHAY, CRCW04021M05FKED

3

1

U1

400mA WIRELESS SYNCHRONOUS BUCK BATTERY 

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, 2501-2-00-80-00-00-07-0

2

4

E1, E2, E5, E6

TURRET, 0.061˝

MILL-MAX, 2308-2-00-80-00-00-07-0

3

2

J1, J2

HEADER, 1PIN, 0.020˝ × 0.020˝

SAMTEC, TMM-101-02-L-S

4

0

J3-OPT

CONN, 3 PIN POLARIZED

HIROSE, DF3-3P-2DSA

5

2

BP1, BP2, BP3, BP4

CLEAR 0.200˝ × 0.440˝ BUMPER

KEYSTONE, 785-C

6

0.00058

3M, 0.5IN WIDE, 1/16IN THICK, DOUBLE SIDED FOAM 

TAPE, 0.75IN × 0.50IN PIECE

3M, 4466

7

4

STAND-OFF, NYLON, 0.375˝

KEYSTONE, 8832

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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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