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dc1470af

DEMO MANUAL DC1470A

PARTS LIST

ITEM

QTY

REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

4

C1, C12, C16, C17

CAP., X7R, 4.7μF, 50V, 10%, 1210

MURATA, GRM32ER71H475KA88L

2

1

C2

CAP., X7R, 1μF, 50V, 10%,0805

MURATA, GRM21BR71H105KA12L

3

1

C3

CAP., X7R, 0.22μF, 10V,10%,0603

MURATA, GRM188R71A224KA01D

4

1

C4

CAP., X5R, 22μF, 6.3V, 20%, 0805

MURATA, GRM21BR60J226ME39L

5

6

C5, C6, C18, C21, C23, C25

CAP., POSCAP, 470μF, 6.3V, D4D

PANSONIC, 6TPF470MAH

6

1

C7

CAP., C0G, 2nF, 50V, 0603

MURATA, GRM1885C1H202JA01

7

1

C8

CAP., X7R, 1μF, 16V, 10%,0603

MURATA, GRM188R71C105KA12D

8

2

C9,C10

CAP., C0G, 5600pF, 50V, 5% 0603

MURATA, GRM1885C1H562JA01D

9

1

C11

CAP., ALUM., ELECT., 100μF, 50V 

SUN ELECTRONICS., 50CE100LX

10

1

C15

CAP., X5R, 0.033μF, 50V, 0603

AVX, 06035D333KAT2A

11

1

C26

CAP., X7R, 1200pF, 50V,5%, 0603

AVX, 06035C122JAT2A

12

1

C27

CAP., X7R, 10μF, 25V,10%,1206

MURATA, GRM31CR71E106KA12L

13

1

D1

SCHOTTKY RECTIFIER, 40V, SOD523

NXP SEMI., PMEG4002EB,115

14

1

D2

2.0A LOW VF SCHOTTKY RECTIFIER

DIODES INC., DFLS240L-7

15

1

L1

INDUCTOR, 1.3μH

WURTH ELECTRONICS, 7443551130

16

2

Q1,Q2

N-CHANNEL MOSFET, LFPAK

INFINEON, BSC080N03LS G

17

1

Q3

N-CHANNEL MOSFET, LFPAK

INFINEON, BSC011N03LSI

18

2

Q5,Q6

MOSFET, 40V, DUAL N-CHANEL, PPAK

VISHAY, Si7234DP

19

1

R1

RES., CHIP, 124k, 1%, 1/W, 0603

VISHAY, CRCW0603124KFKEA

20

1

R2

RES., CHIP, 374k, 1%, 1/W, 0603

VISHAY, CRCW0603374KFKEA

21

1

R3

RES., CHIP, 0.0025Ω, 1W,  1%, 2512

VISHAY, WSL25122L500FEA

22

7

R4, R9, R10, R12, R13, R14, R20 RES., CHIP, 100k, 1%, 1/W, 0603

VISHAY, CRCW0603100KFKEA

23

3

R5, R7, R8

RES., CHIP, 51k, 1%, 1/W, 0603

VISHAY, CRCW060351K0FKEA

24

1

R6

RES., CHIP, 10k, 1%, 1/W, 0603

VISHAY, CRCW060310K0FKEA

25

2

R15, R16

RES., CHIP, 10Ω, 1%, 1/W, 0603

VISHAY, CRCW060310R0FKEA

26

1

R18

RES., CHIP, 24.9k, 1%, 1/W, 0603

VISHAY, CRCW060324K9FKEA

27

1

R19

RES., CHIP, 432k, 1%, 1/W, 0603

VISHAY, CRCW0603432KFKEA

28

1

R23

RES., CHIP, 3.01k, 1%, 1/W, 0603

VISHAY, CRCW06033K01FKEA

29

1

R24

RES., CHIP, 2k, 1%, 1/W, 0603

VISHAY, CRCW06032K00FKEA

30

1

U1

I.C. LT3743EUFD, 28-PIN QFN-4×5

LINEAR TECH., LT3743EUFD#PBF

Additional Demo Board Circuit Components

1

0

C13, C14, C19, C20, C22, C24

CAP., D4D, OPT

2

0

R11, R21, R22, R26

RES., OPT, 0603

VISHAY, CRCW06030000Z0EA

3

2

R17, R27

RES., CHIP, 0Ω, 0603

4

0

R25

RES., CHIP, 2512, OPT

5

0

Q4 OPT

Hardware for Demo Board Only

1

10

E1-E8, E13, E14

TURRET,  TESTPOINT, 091" 

MILL MAX 2501-2-00-80-00-00-07-0

2

4

E9-E12

JACK BANANA

KEYSTONE, 575-4

3

4

STAND-OFF

STAND-OFF, NYLON 0.5" TALL 

KEYSTONE, 8833(SNAP ON)

Содержание DC1470A

Страница 1: ... the demo board is 94 from a 12V input to 5V 20A load The lower the input voltage the higher the efficiency tends to be with a given load At output power level of 100W a couple of percent of efficiency improvement is a huge advantage in minimizingtemperaturerise Ifanefficiencymeasurement is needed in an application the output voltage must be measured at the output capacitors instead of at the LED ...

Страница 2: ... have more noise but is ok for non critical measurements The LED connecting wires should be as short as possible 1 inch total being ideal 3 Turn on the power at the input R15 R16 and C15 help filtering out voltage spikes seen on the SENSE or SENSE pin It is critical to have those components on a board TheLT3743hasathree statecontrol Itcanchangeoutput current among zero a low level and a high level...

Страница 3: ...3 dc1470af DEMO MANUAL DC1470A QUICK START PROCEDURE Figure 1 Proper Measurement Equipment Setup Figure 2 Measuring Voltage Across R25 IS IS ...

Страница 4: ...INEON BSC080N03LS G 17 1 Q3 N CHANNEL MOSFET LFPAK INFINEON BSC011N03LSI 18 2 Q5 Q6 MOSFET 40V DUAL N CHANEL PPAK VISHAY Si7234DP 19 1 R1 RES CHIP 124k 1 1 W 0603 VISHAY CRCW0603124KFKEA 20 1 R2 RES CHIP 374k 1 1 W 0603 VISHAY CRCW0603374KFKEA 21 1 R3 RES CHIP 0 0025Ω 1W 1 2512 VISHAY WSL25122L500FEA 22 7 R4 R9 R10 R12 R13 R14 R20 RES CHIP 100k 1 1 W 0603 VISHAY CRCW0603100KFKEA 23 3 R5 R7 R8 RES ...

Страница 5: ...UT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCHEMATIC 3 Friday July 31 2015 1 1 STEP DOWN LED DRIVER WITH THREE STATE CONTROL ANTONINA K WALKER B A LT3743EUFD DEMO CIRCUIT 1470A SIZE DATE IC NO REV SHEET OF TITLE CON...

Страница 6: ...ORY INCLUDING ANY WARRANTY OF MERCHANTABILITY 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 user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of...

Страница 7: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1470A ...

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