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9

dc1989aaf

 

DEMO MANUAL DC1989A-A

 

39

2

R99, R100

RES., CHIP, 200Ω, 1%, 0603

VISHAY CRCW0603200RFKEA

40

1

R101

RES., CHIP, 127Ω, 1%, 0603

VISHAY CRCW0603127RFKEA

41

1

R123

RES., CHIP, 1M, 1%, 0603

VISHAY CRCW06031M00FKEA

42

1

R105

RES., CHIP, 681k, 1%, 0603

VISHAY CRCW0603681KFKEA

43

1

R106

RES., CHIP, 3.3Ω, 1%, 0603

VISHAY CRCW06033R30FKEA

44

1

R107

RES., CHIP, 82.5Ω, 1%, 0603

VISHAY CRCW060382R5FKEA

45

2

R108, R118

RES., CHIP, 0.01Ω, 1%, 2010

VISHAY, WSL2010R0100FEA

46

1

R109

RES., CHIP, 100k, 1%, 0603

VISHAY CRCW0603100KFKEA

47

1

R110

TRIMMING POTENTIOMETER, 5k

BOURNS, 3386P-1-502LF 

48

2

R111, R115

RES., CHIP, 20k, 1%, 0603

VISHAY CRCW060320K0FKEA

49

1

R114

RES., CHIP, 154k, 1%, 0603

VISHAY CRCW0603154KFKEA

50

1

R117

RES., CHIP, 2, 1%, 0603

VISHAY CRCW06032R00FKEA

51

2

SW1, SW2

CONNECTOR, SUB MINIATURE SLIDE 

SWITCHES

C&K., JS202011CQN

52

2

U1, U2

IC, LTM4676EY

LINEAR TECH. LTM4676EY

53

1

U5

IC, 24LC025T-E/OT SOT-23 6-LEAD

MICROCHIP, 24LC025T-E/OT

54

1

U6

IC., LT1129CS8-5, S8

LINEAR TECH. LT1129CS8-5

55

1

U7

IC., LTC6992-1, S6-TSOT

LINEAR TECH. LTC6992CS6-1

56

1

U8

IC., LT1803IS5, S5-TSOT

LINEAR TECH. LT1803IS5

Additional Demo Board Circuit Components

1

0

CIN12-CIN15-CIN19 (OPT)

CAP., OPTIONAL

2

0

C1, COUT2, C2, COUT3 (OPT) C6, C8, C9, COUT10, 

C10, COUT11, C11, COUT13, C13, C14, C15, C16, 

C17, C18, C19, C20, COUT4, COUT14, COUT24, 

COUT23, COUT26, COUT21, COUT22, COUT25, 

COUT27, COUT28, COUT29, COUT30, COUT31, 

COUT32, COUT35, COUT33, COUT36, COUT37, 

COUT38, COUT34

CAP., OPTIONAL

3

0

R1, R3, R5, R17, R34, R31, R33, R29, R38, R52, 

R55, R57, R59, R61, R28, R63, R71, R73, R75, 

R77, R88, R91, R93, R94, R102, R103, R13, R37, 

R62, R76, R79, R21, R22, R23, R24, R43, R44, 

R45, R46, R67, R66, R65, R68, R69, R68, R69, 

R70, R81, R82, R83, R84, R87

RES., OPTIONAL

4

0

U3 , U4 (OPT)

OPTIONAL

Hardware: For Demo Board Only

1

23 E2-E24

TESTPOINT, TURRET, 0.062"

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

2

2

JP1, JP2

HEADER, 1X3 PIN 0.079" SINGLE ROW

SULLIN, NRPN031PAEN-RC 

3

2

XJP1, XJP2

SHUNT, 0.079" CENTER

SAMTEC, 2SN-KB-G

4

6

J1, J2, J3, J4, J5, J6

STUD, TESTPIN

PEM KFH-032-10

5

12 J1, J2, J3, J4, J5, J6 (x2)

NUT, BRASS 10-32

ANY #10-32M/S

6

6

J1, J2, J3, J4, J5, J6

RING, LUG #10

KEYSTONE #10

7

6

J1, J2, J3, J4, J5, J6

WASHER, TIN PLATED BRASS

10EXT

8

4

(STAND-OFF)

STAND-OFF, NYLON 0.50" TALL

KEYSTONE, 8833(SNAP ON)

9

1

FAB, PRINTED CIRCUIT BOARD

DEMO CIRCUIT 1989A

parts List

Summary of Contents for DC1989A-A

Page 1: ...alu ationoftheDC DCconverter Tofullyexploretheextensive powersystemmanagementfeaturesofthepart download the GUI software LTpowerPlay onto your PC and use LTC s I2C SMBus PMBus dongle DC1613A to connec...

Page 2: ...r the proper scope probe technique Short stiff leads need to be soldered to the and terminals of an output capacitor The probe s ground ring needs to touch the lead and the probe tip needs to touch th...

Page 3: ...3 dc1989aaf DEMO MANUAL DC1989A A Quick Start Procedure Figure 2 Proper Measurement Equipment Setup Figure 3 Measuring Output Voltage Ripple...

Page 4: ...Quick Start Procedure Figure 4 Demo Setup with PC Figure 5 Efficiency vs Load Current at VIN 5V and VIN 12V Efficiency vs Load Current 100 90 70 80 60 50 LOAD CURRENT A EFFICIENCY 0 10 40 50 30 20 5 1...

Page 5: ...OUT0 50A Figure 10 Total Current Readback vs Load Current at VIN 12V VOUT0 1V Figure 8 Thermal Performance at VIN 12V VOUT0 1V IOUT0 50A TA 23 8 C Air Flow 200LFM VOUT0 20MHz BW 50mV DIV 25A TO 50A LO...

Page 6: ...ing up to program or tweak the power management scheme in a system or to diagnose power issues when bringing up rails LTpowerPlay utilizes the DC1613A USB to SMBus controller to communicate with one o...

Page 7: ...on from the RAM of LTM4676 and loads it into the GUI d If you want to change the output voltage to a different value like 1 5V In the Config tab type in 1 5 in the VOUT_COMMAND box like this Then clic...

Page 8: ...D PANASONIC LN1271RTR 18 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI 98414 G06 12ULF 19 1 J8 PIN HEADER 20 DUAL ROW RA M Mill Max 802 40 020 20 0001 20 1 J9 CONN SOCKET 20 DUAL ROW RA F Mill Max 803 43...

Page 9: ...992CS6 1 56 1 U8 IC LT1803IS5 S5 TSOT LINEAR TECH LT1803IS5 Additional Demo Board Circuit Components 1 0 CIN12 CIN15 CIN19 OPT CAP OPTIONAL 2 0 C1 COUT2 C2 COUT3 OPT C6 C8 C9 COUT10 C10 COUT11 C11 COU...

Page 10: ...R IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PE...

Page 11: ...PERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERIN...

Page 12: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Page 13: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Page 14: ...HIGH EFFICIENCY POLY PHASE DC DC STEP DOWN HZ JIAN L B LTM4676EY DEMO CIRCUIT 1989A A SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone...

Page 15: ...APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS C...

Page 16: ...LUDING 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 CO...

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