background image

10

DEMO MANUAL 

DC2824A-A

Rev. 0

SCHEMATIC DIAGRAM

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

VO

U

T SEL

DO

 N

O

EXC

EED

 

DY

NA

M

IC 

LO

AD 

CI

RCUI

T

PR

O

TO

APPR

O

VED

ECO

-

DA

TE

09/

16/

19

RE

V

RE

VI

SI

O

N HI

ST

O

RY

_ j

2

DE

SCRI

PT

IO

N

5%

 DUT

CY

CL

E!

VIN

SVI

N

INT

VCC

INT

VCC

INT

VCC

INT

VCC

INT

VCC

INT

VCC

INT

VCC

INT

VCC

INT

VCC

VO

UT

VSEN

SE+

AL

ER

T

SD

A

SC

L

SYN

C

PG

OO

D

RUN_

ST

BY

RUN_

M

ST

R

RUN_

M

ST

R

SW

DA

TE:

SHE

ET

OF

TI

TLE: 

SC

HEM

ATI

C

APPROVALS

PCB DE

S.

AP

P E

NG.

SI

ZE:

SC

HEM

ATI

NO.

 A

ND

 R

EVI

SI

ON

:

CUSTOMER NOTICE

THI

CI

RCUI

IS

 P

ROP

RI

ETA

RY

 TO 

ANALOG 

 DE

VI

CE

 AND

SUPPL

IED 

FO

USE 

WI

TH 

ANAL

O

G

 DE

VI

CES 

PART

S.

ww

w.

an

alo

g.c

om

SK

NO.

IC

 N

O.

ANALOG 

DE

VI

CE

HAS

 M

ADE

 A 

BE

ST 

EFFORT 

TO 

DE

SI

GN 

A

CI

RCUI

THAT 

M

EE

TS

 CUS

TOM

ER-

SUP

PLI

ED 

SP

ECI

FI

CATI

ONS

;

HOWE

VE

R,

 IT 

RE

M

AI

NS

 THE

 CUS

TOM

ER'

RE

SP

ONS

IBI

LI

TY

 TO

VE

RI

FY

 P

ROP

ER 

AND 

RE

LI

ABLE

 OP

ERATI

ON

 IN

 THE

 ACTUAL

AP

PLI

CATI

ON.

  COM

PONE

NT 

SUBS

TI

TUTI

ON 

AN

PRI

NTE

D

CI

RCUI

BOA

RD 

LAY

OUT 

M

AY

 S

IGNI

FI

CANTLY

 AFFE

CT 

CI

RCUI

T

PE

RFOR

M

ANCE

 OR 

RE

LI

ABI

LI

TY

.  

CONTACT 

ANALOG 

 DE

VI

CE

S

AP

PLI

CATI

ONS

 E

NGI

NE

ERI

NG 

FOR 

AS

SI

STAN

CE

.

12

\

_

|çt

É j

â

LT

C7131I

Y

25

A M

O

NO

LI

THI

C S

YNCHRO

NO

US

 S

TE

P-

DO

W

N

DC

2824A

710-

DC

2824

A_R

EV

02

N/

A

 CO

NV

ERT

ER W

IT

H P

M

BUS

 INT

ERF

ACE

M

onday

, J

une 

14,

 2021

DA

TE:

SHE

ET

OF

TI

TLE: 

SC

HEM

ATI

C

APPROVALS

PCB DE

S.

AP

P E

NG.

SI

ZE:

SC

HEM

ATI

NO.

 A

ND

 R

EVI

SI

ON

:

CUSTOMER NOTICE

THI

CI

RCUI

IS

 P

ROP

RI

ETA

RY

 TO 

ANALOG 

 DE

VI

CE

 AND

SUPPL

IED 

FO

USE 

WI

TH 

ANAL

O

G

 DE

VI

CES 

PART

S.

ww

w.

an

alo

g.c

om

SK

NO.

IC

 N

O.

ANALOG 

DE

VI

CE

HAS

 M

ADE

 A 

BE

ST 

EFFORT 

TO 

DE

SI

GN 

A

CI

RCUI

THAT 

M

EE

TS

 CUS

TOM

ER-

SUP

PLI

ED 

SP

ECI

FI

CATI

ONS

;

HOWE

VE

R,

 IT 

RE

M

AI

NS

 THE

 CUS

TOM

ER'

RE

SP

ONS

IBI

LI

TY

 TO

VE

RI

FY

 P

ROP

ER 

AND 

RE

LI

ABLE

 OP

ERATI

ON

 IN

 THE

 ACTUAL

AP

PLI

CATI

ON.

  COM

PONE

NT 

SUBS

TI

TUTI

ON 

AN

PRI

NTE

D

CI

RCUI

BOA

RD 

LAY

OUT 

M

AY

 S

IGNI

FI

CANTLY

 AFFE

CT 

CI

RCUI

T

PE

RFOR

M

ANCE

 OR 

RE

LI

ABI

LI

TY

.  

CONTACT 

ANALOG 

 DE

VI

CE

S

AP

PLI

CATI

ONS

 E

NGI

NE

ERI

NG 

FOR 

AS

SI

STAN

CE

.

12

\

_

|çt

É j

â

LT

C7131I

Y

25

A M

O

NO

LI

THI

C S

YNCHRO

NO

US

 S

TE

P-

DO

W

N

DC

2824A

710-

DC

2824

A_R

EV

02

N/

A

 CO

NV

ERT

ER W

IT

H P

M

BUS

 INT

ERF

ACE

M

onday

, J

une 

14,

 2021

DA

TE:

SHE

ET

OF

TI

TLE: 

SC

HEM

ATI

C

APPROVALS

PCB DE

S.

AP

P E

NG.

SI

ZE:

SC

HEM

ATI

NO.

 A

ND

 R

EVI

SI

ON

:

CUSTOMER NOTICE

THI

CI

RCUI

IS

 P

ROP

RI

ETA

RY

 TO 

ANALOG 

 DE

VI

CE

 AND

SUPPL

IED 

FO

USE 

WI

TH 

ANAL

O

G

 DE

VI

CES 

PART

S.

ww

w.

an

alo

g.c

om

SK

NO.

IC

 N

O.

ANALOG 

DE

VI

CE

HAS

 M

ADE

 A 

BE

ST 

EFFORT 

TO 

DE

SI

GN 

A

CI

RCUI

THAT 

M

EE

TS

 CUS

TOM

ER-

SUP

PLI

ED 

SP

ECI

FI

CATI

ONS

;

HOWE

VE

R,

 IT 

RE

M

AI

NS

 THE

 CUS

TOM

ER'

RE

SP

ONS

IBI

LI

TY

 TO

VE

RI

FY

 P

ROP

ER 

AND 

RE

LI

ABLE

 OP

ERATI

ON

 IN

 THE

 ACTUAL

AP

PLI

CATI

ON.

  COM

PONE

NT 

SUBS

TI

TUTI

ON 

AN

PRI

NTE

D

CI

RCUI

BOA

RD 

LAY

OUT 

M

AY

 S

IGNI

FI

CANTLY

 AFFE

CT 

CI

RCUI

T

PE

RFOR

M

ANCE

 OR 

RE

LI

ABI

LI

TY

.  

CONTACT 

ANALOG 

 DE

VI

CE

S

AP

PLI

CATI

ONS

 E

NGI

NE

ERI

NG 

FOR 

AS

SI

STAN

CE

.

12

\

_

|çt

É j

â

LT

C7131I

Y

25

A M

O

NO

LI

THI

C S

YNCHRO

NO

US

 S

TE

P-

DO

W

N

DC

2824A

710-

DC

2824

A_R

EV

02

N/

A

 CO

NV

ERT

ER W

IT

H P

M

BUS

 INT

ERF

ACE

M

onday

, J

une 

14,

 2021

CI

N8

4.

7u

F

C

43

O

PT

CI

N3

22uF

25V 1206

R7 10

1%

R

30

0

C9 0.

1uF

R4

6.

04k

1%

C7

1uF

R1 1k

1%

E1

1

G

ND

JP

7

1.

8V

J8

VIN

4.

5V

 - 

20V

E3

PGOOD

C4

47p

F

CO

UT

8

10

0uF

1210

6.

3V

CO

UT

10

C6 OPT

R

71

O

PT

J9

IO

UT

 T

ST

JP

6

1.

0V

CO

UT

11

O

PT

1210

JP

5

ON

O

FF

W

P

1

3

2

J2

G

ND

R

34

O

PT

R6

8

0.

01

2512

R6 0

CI

N7

10uF

1210

C2

4700pF

E5

TRA

CK

+

CO

UT

5

1

2

R

29

0

C4

1

2.

2uF

0805

+

CO

UT

6

33

0u

F

7343

4V

1

2

R3 O

PT

R11

10k

0.

1%

R

70

O

PT

E4

SYN

C

R1

9

0

L1

21

5n

H

FP

1007R

3-

R22-

R

1

2

R

17

O

PT

R9 10

k

1%

JP

9

25A US

ER 

DE

FI

NE

D

15A

IL

IM

1

3

2

4

JP

1

ON

O

FF

RUN_

M

ST

R

1

3

2

C3

0.

01uF

E1

2

SVI

N

CO

UT

9

JP

4

MA

RG

IN

HIG

H

NO

M

LO

W

1

2

3

4

5

6

R

33

O

PT

R

12

10k

1%

E2

G

ND

C

11

4.

7uF

J5

VO

UT

CI

N1

22uF

25V 1206

R1

4

OP

T

R

58 10

k

1%

R20

10

1%

CI

N1

0

J7

VO

UT

Q

15

5

2

4

1

3

E6

CL

KO

UT

CO

UT

1

1210

6.

3V

R5

OP

T

+

CO

UT

7

33

0u

F

7343

4V

1

2

JP

3

ON

O

FF

RUN_

ST

BY

1

3

2

R2 0

R

69

O

PT

R8 10

k

1%

E1

PU

LSE 

IN

E1

3

RE

F

R2

2

0

CO

UT

12

CI

N6

10uF

1210

CI

N5

22uF

25V 1206

R1

3

2.

2

1%

C1

47pF

CO

UT

2

O

PT

1210

C8 OP

T

1210

JP

2

DCM

SYN

C

FCM

MO

DE

1

3

2

4

CI

N9

+

CI

N2

33

uF

25V 7343

1

2

D3

CM

DS

H-

3

2

1

JP

8

ADJ

R

18

18

k

0.

1%

R

10

10k

1%

J6

G

ND

U1

LT

C7131I

Y-

1

SS_

EXT

A3

PG

O

O

D

C5

PGN

D

G3

RT

C1

D1

ASEL

ST

BYB

B5

PGN

D

F2

AL

ER

T

E5

SD

A

D5

SC

L

D4

VSSSEN

B4

SW

E6

VC

C

SEN

B3

M

AR

G

IN

D2

C

LKO

U

T

D6

BO

O

ST

D7

PGN

D

F4

PGN

D

G2

ITH

A1

PGN

D

F3

SW

E7

PG

FD

C6

PGN

D

G1

RUN_

MS

TR

A6

PVIN

H1

PGN

D

G4

PVIN

H2

INT

VCC

B7

SVIN

B6

C

SL

EW

A4

IL

IM

A5

WP

D3

D

AO

U

T

A2

SGN

D

C4

C3

SG

ND

M

O

D

E/

SYN

C

A7

R

EF

B2

PG

LI

M

C2

FB

B1

PGN

D

F1

PGN

D

C7

SW

F5

SW

F6

SW

F7

SW

G5

SW

G6

SW

G7

SW

H5

SW

H6

SW

H7

SW

J5

SW

J6

SW

J7

PVIN

H3

PVIN

H4

PVIN

J1

PVIN

J2

PVIN

J3

PVIN

J4

R2

1

OP

T

+

CI

N4

33

uF

25V 7343

1

2

C

42 0.1

uF

VIN

VSEN

SE+

VSEN

SE-

PG

OOD

SD

A

AL

ER

T

W

P

FB

IT

H

SS

DA

O

UT

REF

SC

L

SYN

C

RUN_

M

ST

R

RUN_

ST

BY

VO

UT

SW

VO

UT

Summary of Contents for LTC7131-1

Page 1: ...er To fully explore the extensive power system manage ment features of the part download the GUI software LTpowerPlay onto your PC and use ADI s USB to PMBus dongle DC1613A to connect to the board All registered trademarks and trademarks are the property of their respective owners BOARD PHOTO LTpowerPlay allows users to monitor fault status and real time telemetry of input and output voltages inpu...

Page 2: ...25 C PARAMETER CONDITIONS MIN TYP MAX UNITS Input Voltage Range 4 5 12 20 V Output Voltage VOUT VIN 4 5V to 20V IOUT 0A to 25A 0 4 1 4 V Maximum Output Current IOUT VIN 4 5V to 20V VOUT 0 4V to 4V 25 A Typical Efficiency VIN 12V VOUT 1V IOUT 25A fSW 480kHz 87 7 See Figure 3 VIN 12V VOUT 1 8V IOUT 25A fSW 480kHz 91 4 See Figure 3 Default Switching Frequency 480 kHz Notes 1 When measuring the output...

Page 3: ...3 DEMO MANUAL DC2824A A Rev 0 TEST SETUP DIAGRAM Figure 2 Proper Measurement Equipment Setup ...

Page 4: ... 95 100 EFFICIENCY dc2824a a F01 0 65VOUT 0 8VOUT 1VOUT 1 2VOUT 1 8VOUT 3 3VOUT 2µs DIV dc2824a a G04a VOUT 5mV DIV VIN 12V IOUT 25A fSW 480kHz a VOUT 1V 2µs DIV dc2824a a G04b VOUT 5mV DIV VIN 12V IOUT 25A fSW 480kHz b VOUT 1 8V 100µs DIV dc2824a a G05a VOUT 20mV DIV VIN 12V fSW 480kHz LOAD STEP 0A TO 6 25A 10A DIV a VOUT 1V 100µs DIV dc2824a a G05b VOUT 20mV DIV VIN 12V fSW 480kHz LOAD STEP 0A T...

Page 5: ... a demo board sys tem LTpowerPlay can also be used in an off line mode with no hardware present in order to build a multichip configuration file that can be saved and reloaded at a later time LTpowerPlay provides unprecedented diagnostic and debug features It becomes a valuable diagnostic tool during board bring up to program or tweak the power management scheme in a system or to diagnose power is...

Page 6: ...r laptop through the DC1613A dongle 3 Launch the LTpowerPlay GUI a The GUI should automatically identify the dongle connected as shown in the picture below Select Detect Chips to allow LTpowerPlay to detect the LTC7131 1 b After LTC7131 1 is detected the LTpowerPlay main interface appears as shown in Figure 7 and a message box like below also shows for a few seconds in the lower left hand corner c...

Page 7: ...ing the fault response modes e Here is an example of margining the output volt age high First enter the desired margin high percentage 25 in the MFR_VOUT_MARGIN_ HIGH field under Output Voltage tab Note that the percentage must be within the range of 25 to 25 for both margin high and mar gin low commands f Then select the MarginHigh operation from the On off Control and Margining tab g Next click ...

Page 8: ...R 0603 WURTH ELEKTRONIK 150060RS75000 17 1 D3 DIODE SCHOTTKY 30V 100mA SOD 323 CENTRAL SEMI CMHSH 3 TR 18 4 J2 J6 J8 EVAL BOARD STUD HARDWARE SET 10 32 ANALOG DEVICES 720 0010 19 1 L1 IND 215nH PWR FERRITE 10 61A 0 29mΩ 10 4mm 8 0mm SMD EATON FP1007R3 R22 R 20 1 Q1 XSTR MOSFET P CH 20V 5 9A TO 236 SOT23 3 VISHAY Si2365EDS T1 GE3 21 1 Q2 XSTR MOSFET N CH 60V 300mA SOT 23 VISHAY 2N7002K T1 GE3 22 1 ...

Page 9: ... MAX 2501 2 00 80 00 00 07 0 2 1 J1 CONN SHROUDED HDR MALE 2 6 2mm VERT STR THT AMPHENOL 98414 G06 12ULF 3 1 J3 CONN HDR MALE 2 4 2mm R A THT MOLEX 87760 0816 4 1 J4 CONN HDR FEMALE 2 4 2mm R A THT SULLINS CONNECTOR SOLUTIONS NPPN042FJFN RC 5 2 J5 J9 CONN RF BNC RCPT JACK 5 PIN STR THT 50Ω AMPHENOL RF 112404 6 3 JP1 JP3 JP5 CONN HDR MALE 1x3 2mm VERT STR THT NO SUBS ALLOWED WURTH ELEKTRONIK 620003...

Page 10: ...REV02 N A CONVERTER WITH PMBUS INTERFACE Monday June 14 2021 D A T E S H E E T O F T I T L E S C H E M A T I C A P P R O V A L S P C B D E S A P P E N G S I Z E S C H E M A T I C N O A N D R E V I S I O N C U S T O M E R N O T I C E T H I S C I R C U I T I S P R O P R I E T A R Y T O A N A L O G D E V I C E S A N D S U P P L I E D F O R U S E W I T H A N A L O G D E V I C E S P A R T S w w w a n a...

Page 11: ...G N A C I R C U I T T H A T M E E T S C U S T O M E R S U P P L I E D S P E C I F I C A T I O N S H O W E V E R I T R E M A I N S T H E C U S T O M E R S R E S P O N S I B I L I T Y T O V E R I F Y P R O P E R A N D R E L I A B L E O P E R A T I O N I N T H E A C T U A L A P P L I C A T I O N C O M P O N E N T S U B S T I T U T I O N A N D P R I N T E D C I R C U I T B O A R D L A Y O U T M A Y S ...

Page 12: ... disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damag...

Page 13: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC2824A A ...

Reviews: