background image

8

DEMO MANUAL DC2543B

Rev. 0

SCHEMATIC DIAGRAM

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

1/2

VIN

, 1

0A

NOTES: UNLESS OTHER

W

ISE SPECIFIED,

1.  CAP

ACIT

O

RS 

AND RESIST

ORS 

ARE 

0603.

36V

-60V

O

N

RU

N

O

FF

G1

SW1

SW3

G4

MID

G3

G2

VIN1

VIN1

INTVCC

VOUT1

VIN1

VIN

INTVCC

EXTVCC

VIN1

VIN1

VIN

VOUT1

INTVCC

INTVCC

INTVCC

VIN

VOUT

VIN

VIN1

VIN

VIN1

VOUT

VOUT

FAULTB

BOOST2

FAULTB

BOOST2

SIZ

E

DA

TE

:

IC NO

.

RE

V.

SH

EE

T

OF

TI

TLE

:

APPROVAL

S

PCB DES.

AP

P E

NG

.

TE

CHN

O

LO

G

Y

Fax: (408)434-0507

Mi

lp

itas,

 CA 95035

Phone:

 (408)

432-

1900

1630 McCar

th

Bl

vd

.

LT

C C

on

fid

en

tia

l-F

or

 C

us

to

m

er

 U

se

 O

nl

y

CUSTOMER NOTICE

LI

NEAR T

ECHNOL

OGY HAS MADE A BEST

 EF

FO

RT

 T

DESIGN 

A

CI

RC

UI

T T

HA

T M

EE

TS

 C

US

TO

M

ER

-S

UP

PL

IE

SP

EC

IF

IC

AT

IO

NS

;

HOW

EVER, 

IT

 REM

AINS T

HE CUST

OM

ER'S RESPONSIBIL

IT

Y T

O

VERIF

PROPER 

AN

REL

IABL

E OPERAT

ION 

IN 

THE

 ACT

UAL

APPL

ICAT

ION.  COMPONENT

 SUBST

IT

UT

ION AND 

PRINT

ED

CIRCUIT

 BOARD L

AYOUT

 MAY 

SIGNIF

ICANT

LY

 AF

FE

CT

 CIRCUIT

PERF

ORMANCE OR REL

IABIL

IT

Y.  CONT

ACT

 L

INEAR

TE

CHNOL

OGY APPL

ICAT

IONS ENGINEERING F

OR ASSIST

ANCE.

THIS CIRCUIT

 IS PROPRIET

ARY 

TO

 L

INEAR 

TE

CHNOL

OGY 

AND

SCHE

MA

TI

C

SU

PP

LI

ED

 F

OR

 U

SE

 W

IT

H L

IN

EA

R T

EC

HN

OL

OG

Y P

AR

TS

.

SCALE

 = NO

NE

www.line

ar

.c

om

1

Monday, March 26, 2018

12

HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER

HZ

JL

N/A

LTC7820EUFD DEMO CIRCUIT 2543B

SIZ

E

DA

TE

:

IC NO

.

RE

V.

SH

EE

T

OF

TI

TLE

:

APPROVAL

S

PCB DES.

AP

P E

NG

.

TE

CHN

O

LO

G

Y

Fax: (408)434-0507

Mi

lp

itas,

 CA 95035

Phone:

 (408)

432-

1900

1630 McCar

th

Bl

vd

.

LT

C C

on

fid

en

tia

l-F

or

 C

us

to

m

er

 U

se

 O

nl

y

CUSTOMER NOTICE

LI

NEAR T

ECHNOL

OGY HAS MADE A BEST

 EF

FO

RT

 T

DESIGN 

A

CI

RC

UI

T T

HA

T M

EE

TS

 C

US

TO

M

ER

-S

UP

PL

IE

SP

EC

IF

IC

AT

IO

NS

;

HOW

EVER, 

IT

 REM

AINS T

HE CUST

OM

ER'S RESPONSIBIL

IT

Y T

O

VERIF

PROPER 

AN

REL

IABL

E OPERAT

ION 

IN 

THE

 ACT

UAL

APPL

ICAT

ION.  COMPONENT

 SUBST

IT

UT

ION AND 

PRINT

ED

CIRCUIT

 BOARD L

AYOUT

 MAY 

SIGNIF

ICANT

LY

 AF

FE

CT

 CIRCUIT

PERF

ORMANCE OR REL

IABIL

IT

Y.  CONT

ACT

 L

INEAR

TE

CHNOL

OGY APPL

ICAT

IONS ENGINEERING F

OR ASSIST

ANCE.

THIS CIRCUIT

 IS PROPRIET

ARY 

TO

 L

INEAR 

TE

CHNOL

OGY 

AND

SCHE

MA

TI

C

SU

PP

LI

ED

 F

OR

 U

SE

 W

IT

H L

IN

EA

R T

EC

HN

OL

OG

Y P

AR

TS

.

SCALE

 = NO

NE

www.line

ar

.c

om

1

Monday, March 26, 2018

12

HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER

HZ

JL

N/A

LTC7820EUFD DEMO CIRCUIT 2543B

SIZ

E

DA

TE

:

IC NO

.

RE

V.

SH

EE

T

OF

TI

TLE

:

APPROVAL

S

PCB DES.

AP

P E

NG

.

TE

CHN

O

LO

G

Y

Fax: (408)434-0507

Mi

lp

itas,

 CA 95035

Phone:

 (408)

432-

1900

1630 McCar

th

Bl

vd

.

LT

C C

on

fid

en

tia

l-F

or

 C

us

to

m

er

 U

se

 O

nl

y

CUSTOMER NOTICE

LI

NEAR T

ECHNOL

OGY HAS MADE A BEST

 EF

FO

RT

 T

DESIGN 

A

CI

RC

UI

T T

HA

T M

EE

TS

 C

US

TO

M

ER

-S

UP

PL

IE

SP

EC

IF

IC

AT

IO

NS

;

HOW

EVER, 

IT

 REM

AINS T

HE CUST

OM

ER'S RESPONSIBIL

IT

Y T

O

VERIF

PROPER 

AN

REL

IABL

E OPERAT

ION 

IN 

THE

 ACT

UAL

APPL

ICAT

ION.  COMPONENT

 SUBST

IT

UT

ION AND 

PRINT

ED

CIRCUIT

 BOARD L

AYOUT

 MAY 

SIGNIF

ICANT

LY

 AF

FE

CT

 CIRCUIT

PERF

ORMANCE OR REL

IABIL

IT

Y.  CONT

ACT

 L

INEAR

TE

CHNOL

OGY APPL

ICAT

IONS ENGINEERING F

OR ASSIST

ANCE.

THIS CIRCUIT

 IS PROPRIET

ARY 

TO

 L

INEAR 

TE

CHNOL

OGY 

AND

SCHE

MA

TI

C

SU

PP

LI

ED

 F

OR

 U

SE

 W

IT

H L

IN

EA

R T

EC

HN

OL

OG

Y P

AR

TS

.

SCALE

 = NO

NE

www.line

ar

.c

om

1

Monday, March 26, 2018

12

HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER

HZ

JL

N/A

LTC7820EUFD DEMO CIRCUIT 2543B

REVISION HIST

ORY

DE

SC

RI

PT

IO

N

DA

TE

APPRO

VE

D

ECO

REV

JL

PRODUCTION

2

3-29-17

__

REVISION HIST

ORY

DE

SC

RI

PT

IO

N

DA

TE

APPRO

VE

D

ECO

REV

JL

PRODUCTION

2

3-29-17

__

REVISION HIST

ORY

DE

SC

RI

PT

IO

N

DA

TE

APPRO

VE

D

ECO

REV

JL

PRODUCTION

2

3-29-17

__

C15 0.1uF

100V

J4

GND

C64

OPT

U1

LTC7820EUFD

NC

2

RUN

6

FAULT

9

PGOOD

7

TIMER

4

UV

8

27

EXTVC

C

11

ISENSE-

28

G4

15

INT

VCC

12

SW3

16

G3

17

G2

21

HYS_PRGM

3

FREQ

5

BOOST3

18

BOOST2

22

VLOW

20

VLOW_SENSE

19

VHIG

H_SEN

SE

1

Vcc

14

SW1

25

G1

24

BOOST1

23

GND

29

NC

10

NC

13

NC

26

Q4

OPT

4

5

6

7

8

3

1

2

SW1

1

2

3

4

5

6

C23

C66

Q22

BSS123L

2

3

1

C36 OPT

1210

50V

D3

CMDSH-4

2

1

C6 4.7uF

16V 0805

C71

+

C127 OPT

100V

C28 2.2uF

0805

50V

R10

0

Q1

BSC027N06LS5

4

5

6

7

8

3

1

2

R1 1k

1%

D6

NRVTSAF5100

C31

R36 OPT

0805

C19

R20

OPT

1%

R18 100K

1%

E1

VIN

RS1

0.005

2010

Q8

OPT

4

5

6

7

8

3

1

2

C16

OPT

D10

CMHZ5236B

R5

0

C67

10uF

1210

C2 2.2uF

1210

100V

C59 2.2uF

1210

100V

C24

R31 100

E6

RUN

C73 10uF

1210

50V

C72

Q7

BSC032N04LS

4

5

6

7

8

3

1

2

E12

VO_SNS-

C14

1210

C4

0.1uF

100V

R60

OPT

R17 10K

1%

C34

R8

OPT

1%

D9

CMHZ5236B

C8

0.22uF

R11 OPT

Q2

OPT

4

5

6

7

8

3

1

2

C68

J3

VOUT

C10 OPT

0805

R32 0

R7

1k

1%

C60

OPT

1210

D2

CMDSH-4

2

1

C20

50V

C32

C7

4.7uF

25V 0805

E2

GND

Q6

BSC032N04LS

4

5

6

7

8

3

1

2

R9 10K

1%

R21 OPT

0805

C13

Q11

SUD50N04

1

2

3

C56 2.2uF

1210

100V

RS2

0

2010

R35

OPT

Q3

BSC032N04LS

4

5

6

7

8

3

1

2

C17 2.2uF

0805

50V

C61

C12

C74 10uF

1210

50V

R2 2.2

C11

OPT

R13 10K

1%

R19 OPT

0805

R12 OPT

C25

C35

E10

D1

CMDSH-4

2

1

C26

0.47uF

C69

OPT

1210

50V

+

C1

33uF 80V

C126

0.1uF

C29 10uF

1210

50V

R34

OPT

J2

GND

C62

C3 2.2uF

1210

100V

C18

R6 OPT

0805

C5

0.1uF

100V

C22

OPT

1210

50V

C65

50V

C27

1uF

C33

Q5 OPT

4

5

6

7

8

3

1

2

Q10

SUD50N04

1

2

3

R16 60.4K

1%

E7

FAULTB

C57 2.2uF

1210

100V

C70

C9

0.47uF

C58 2.2uF

1210

100V

E8

PGOOD

J1

VIN

C77 OPT

C63

C30

OPT

C21

10uF

1210

Содержание Linear DC2543B

Страница 1: ...needs to be powered on with no load cur rent or a very small load current less than 50mA with the default setup Large load current can be applied after VO is established The board offers a disconnect...

Страница 2: ...the input power supply Notes 1 When measuring the output or input voltage ripple do not use the long ground lead on the oscilloscope probe See Figure 3 for the proper scope probe tech nique Short stif...

Страница 3: ...ing Output Voltage Ripple Note It is recommended to set the electronic load in CR constant resistance mode for evaluation of the DC2543B board Some electronic loads draw negative current in CC constan...

Страница 4: ...V OUT V 23 8 24 0 24 6 24 4 24 2 2 4 6 8 10 DC2543B F04 Figure 4 Load Regulation for 10A Design at VIN 48V VOUT 24V fSW 200kHz Figure 5 Output Voltage Ripple at VIN 48V VOUT 24V IOUT 10A fSW 200kHz Fi...

Страница 5: ...10 14 4 8 12 16 18 20 DC2543B F09 Figure 8 Efficiency vs Load Current at VIN 48V VOUT 24V fSW 200kHz Figure 9 Load Regulation for 20A Design at VIN 48V VOUT 24V fSW 200kHz Figure 10 Thermal performan...

Страница 6: ...MI CMDSH 4E TR 15 1 D6 DIODE SCHOTTKY ON SEMI NRVTSAF5100E 16 2 D9 D10 DIODE ZENER CENTRAL SEMI CMHZ5236B TR 17 1 L2 IND 68 H COILCRAFT LPS6225 683MRB 18 1 Q1 XSTR N CHANNEL MOSFET INFINEON BSC027N06L...

Страница 7: ...TH ELEKTRONIK 62000311121 3 4 J1 J2 J3 J4 JACK BANANA KEYSTONE 575 4 4 2 J5 J6 CONN BNC 5 PINS CONNEX 112404 5 1 SW1 SWITCH SUBMINIATURE SLIDE C K COMPONENTS JS202011CQN 6 1 XJP2 SHUNT 2mm WURTH ELEKT...

Страница 8: ...CE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN...

Страница 9: ...O 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 SUBSTITUTION...

Страница 10: ...ot 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 pr...

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