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7

dc1385af

DEMO MANUAL DC1385A

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. 
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

SCHEMATIC DIAGRAM

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

VI

N

1

+

VI

N

1

-

VI

N

1

GN

D

2

.3

7

5

V

 -

 5.5V

P

GOOD

1

TR

A

C

K

1

D

ISAB

L

E

D

EN

ABL

E

D

ON

OFF

TR

A

C

K

GN

D

2

GN

D

1

VO

U

T

1

GN

D

1

VO

1

+

VO

1

-

1.8V

 @ 4A

 M

A

X

P

GOOD

2

RUN

2

ON

OFF

1.2V

 @ 4A

 M

A

X

GN

D

2

VO

2

-

VO

2

+

VO

U

T

2

RUN1

2.375

V

 -

 5

.5

V

VI

N

2

-

VI

N

2

VI

N

2

+

GN

D

TTTT

3

DC1385A

T

hurs

day

, J

une 0

5

, 2008

1

1

A

nt

o

ni

na

3/

7/

07

J. S

u

n

3/

7/

07

High Density Dual Step-Down Power     Module

LT

M

4614EV

SI

ZE

S

C

AL

E:

CAG

E

 CO

D

E

DW

G

 N

O

REV

SHEET

OF

FI

LEN

A

M

E

:

TI

TLE

CO

NT

R

A

C

T

 N

O

.

APPRO

V

A

L

S

DAT

E

DRA

W

N

CHE

CK

E

D

APPR

O

VED

EN

G

IN

EER

T

E

CHNO

LO

G

Y

1630 M

c

C

a

rt

hy

 B

lv

d

.

M

ilp

ita

s

, C

A

 95035

P

hone:

 (408)

432-1900

F

a

x

: (408)434-

0507

T

HIS

 CIRCUIT

 IS

 P

R

O

P

R

IE

T

A

R

Y

 T

O

 L

IN

E

A

R

 T

E

CHNO

L

O

G

Y

 AND

S

U

P

P

L

IE

D

 F

O

R US

E

 W

IT

H L

INE

AR T

E

CHNO

L

O

G

Y

 P

ART

S

.

L

INE

AR 

T

E

CHNO

L

O

G

Y

 H

A

S

 M

A

D

E

 A

 B

E

S

T

 E

F

F

O

R

T

 T

O

 D

E

S

IG

N

 A

CIRCUIT

 T

HAT

 M

E

E

T

S

 C

U

S

T

O

M

E

R

-S

U

P

P

L

IE

D

 SPEC

IF

IC

A

T

IO

N

S;

H

O

WEVER

, I

T

 R

E

M

A

IN

S

 T

H

E

 C

U

S

T

O

M

E

R

'S

 R

ESPO

N

SI

B

IL

IT

Y T

O

V

E

R

IF

Y

 P

R

O

P

E

R AND RE

L

IABL

E

 O

P

E

RAT

IO

N IN T

HE

 ACT

UAL

A

P

P

L

IC

A

T

IO

N

.  

CO

M

P

O

NE

NT

 S

UBS

T

IT

UT

IO

N AND P

RINT

E

D

CIRCUIT

 BO

ARD L

AY

O

UT

 M

A

Y

 S

IG

N

IF

ICANT

L

Y

 AF

F

E

CT

 CIRCUIT

P

E

RF

O

RM

ANCE

 O

R

E

L

IA

B

IL

IT

Y

.  C

O

N

T

A

C

T

 L

IN

E

A

R

T

E

CHNO

L

O

G

Y

 A

P

P

L

IC

A

T

IO

N

S

 E

N

G

IN

E

E

R

IN

G

 F

O

R

 A

S

S

IS

T

ANCE

.

C

U

S

T

O

M

E

R

 NO

T

ICE

VI

N

1

SW1

SW2

VO

U

T

1

VI

N

2

VI

N

1

VO

U

T

2

VO

U

T

1

VO

U

T

2

VI

N

1

VO

U

T

1

VO

U

T

1

VO

U

T

2

VI

N

2

TP

1

1

+

CIN7

1

2

0uF

10V

R7

10.0K

1%

CO

10

OP

T

C

FF2

OP

T

OP

T

C2

R

SET

1

4

.02K

TP

1

8

CIN

8

OP

T

CIN3

10u

F

6.3

V

TP

2

2

CIN2

OP

T

TP

1

2

CO

1

100u

F

6.3

V

JP2

1

2

3

R8

4.99K

TP

1

9

TP

5

L

T

M

4614E

V

U1

G1

G2

G3

G4

G5

L2

G6

G7

G8

G9

G10

G11

H2

G12

H1

H7

H8

H9

H10

L5

L4

K5

K6

H11

H12

J7

J8

K7

K8

L1

L7

L8

M1

K3

K4

M2

M3

M4

M5

M6

J9

J10 J11 J12

J5

J6

K1

K2

H3

L6

K1

0

K1

1

K1

2

K9

J1

J2

J3

J4

L3

L9

L10 L11 L12

A1

A2

A3

A4

A5

E5

A6

A7

A8

A9

A10

A11

A12

B1

B7

B8

B9

B10

C1

C2

B11

B12

C7

C8

D7

D8

E7

E8

E1

F1

C3

C4

F2

F3

F4

F5

F6

C9 C1

0

C1

1

C1

2

D9 D1

0

D1

1

D1

2

E9 E1

0

E1

1

E1

2

C5

C6

D1

D2

E2

B2

E6

D3

D4

D5

D6

E4

E3

F7

F8

M7

M8

M9

M1

0

M1

1

M1

2

F9 F10 F11 F12

H4

H5

H6

B3

B4

B5

B6

GND1

GND1

GND1

GND1

GND1

RUN/

SS1

GND1

GND1

GND1

GND1

GND1

GND1

SW1

GND1

GND1

GND1

GND1

GND1

GND1

CO

M

P

1

P

GOOD

1

VIN1

VIN1

GND1

GND1

GND1

GND1

GND1

GND1

GND1

GND1

GND1

GND1

VIN1

VIN1

GND1

GND1

GND1

GND1

GND1

VO

UT1

VO

UT1

VO

UT1

VO

UT1

VIN1

VIN1

VIN1

VIN1

SW1

FB1

VO

UT1

VO

UT1

VO

UT1

VO

UT1

VIN1

VIN1

VIN1

VIN1

TRACK1

VO

UT1

VO

UT1

VO

UT1

VO

UT1

GND2

GND2

GND2

GND2

GND2

CO

M

P

2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

VIN2

VIN2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

GND2

VIN2

VIN2

GND2

GND2

GND2

GND2

GND2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VO

UT2

VIN2

VIN2

VIN2

VIN2

RUN/

SS2

SW2

FB2

VIN2

VIN2

VIN2

VIN2

P

GOOD

2

TRACK2

GND2

GND2

GND1

GND1

VO

UT1

VO

UT1

VO

UT1

VO

UT1

VO

UT2

VO

UT2

VO

UT2

VO

UT2

SW1

SW1

SW1

SW2

SW2

SW2

SW2

CO

3

22u

F

6.3

V

CP

P

1

OP

T

TP

7

CIN4

10u

F

6.3

V

TP

2

1

TP

1

R9

4

.02K

OP

T

CO

7

OP

T

TP

2

CO

9

1

0

0uF

6.3

V

R10

1m

O

hm

CIN6 10u

F

6.3

V

R

SET

2

10K

TP

1

3

OP

T

C3

TP

2

0

CO

2

OP

T

C

FF1

OP

T

TP

9

TP

6

TP

1

6

OP

T

C4

TP

1

5

TP

1

4

TP

1

7

CO

5

OP

T

CO

4

OP

T

CIN5 10u

F

6.3

V

TP

1

0

TP

4

R6

4.99K

1%

OP

T

C1

CO

12

OP

T

CO

8

22u

F

6.3

V

TP

3

R2

100K

C

PP2

OP

T

JP1

1

2

3

CO

6

OP

T

+

CIN

1

1

2

0uF

10V

R1

100

K

TP

2

3

TP

8

JP3

1

2

3

CO

11

OP

T

Содержание DC1385A

Страница 1: ...re the property of their respective owners PERFORMANCE SUMMARY BOARD PHOTO coincidentallyfollowanothersupplyrail TheLTM4614data sheet must be read in conjunction with this demo board prior to working on or modifying demo circuit DC1477A Design files for this circuit board are available at http www linear com demo TA 25 C PARAMETER CONDITIONS VALUE Input Voltage Range VIN1 and VIN2 2 375V to 5 5V O...

Страница 2: ...adjust the load within the operating range and observe the output voltage regulation ripple voltage efficiency and other parameters To measure input and output ripple please refer to Figure 2 for proper setup 5 Channel1cantrackanothersupplybyconnectingTP17 TRACK to another supply and setting JP1 to ENABLED ResistorsR8andR9aresetupforcoincidentaltracking Channel 2 is set up to coincidentally track ...

Страница 3: ...f DEMO MANUAL DC1385A QUICK START PROCEDURE Figure 1 Test Setup of DC1385A Figure 2 Proper Scope Probe Placement for Measuring Input or Output Ripple V LOAD A V LOAD A 0 4A A VIN 0 4A V INPUT OR OUTPUT CAPACITOR ...

Страница 4: ...4 dc1385af DEMO MANUAL DC1385A Figure 3 Measured Efficiency for Different Channels QUICK START PROCEDURE ...

Страница 5: ... PROCEDURE VOUT1 20mV DIV IOUT1 STEP 2A DIV VIN1 5V VOUT1 1 8V CONTINUOUS CURRENT MODE CCM 1A TO 4A LOAD STEP ON VOUT1 COUT1 100μF CERAMIC 1210 X5R 6 3V 22μF CERAMIC 1206 X5R 6 3V VOUT2 20mV DIV IOUT2 STEP 2A DIV VIN2 5V VOUT2 1 2V CONTINUOUS CURRENT MODE CCM 1A TO 4A LOAD STEP ON VOUT2 COUT2 100μF CERAMIC 1210 X5R 6 3V 22μF CERAMIC 1206 X5R 6 3V ...

Страница 6: ...V Additional Demo Board Circuit Components 1 0 CPP1 CFF1 CPP2 CFF2 CAP 0402 OPT 2 0 CIN2 CIN8 CO11 CO12 CAP 1206 OPT 3 0 CO2 CO4 CO5 CO6 CO7 CO10 CAP 7343 OPT CAP7343 4 0 C1 C2 C3 C4 CAP 0402 OPT 5 1 R9 RES CHIP 4 02k 1 16W 1 0402 VISHAY CRCW04024K02FKED 6 1 R7 RES CHIP 10 0k 1 16W 1 0402 VISHAY CRCW040210K0FKED 7 2 R8 R6 RES CHIP 4 99k 1 16W 1 0402 VISHAY CRCW04024K99FKED 8 1 R10 RES CHIP 1mΩ 1W ...

Страница 7: ...K 1 CO10 OPT CFF2 OPT OPT C2 RSET1 4 02K TP18 CIN8 OPT CIN3 10uF 6 3V TP22 CIN2 OPT TP12 CO1 100uF 6 3V JP2 1 2 3 R8 4 99K TP19 TP5 LTM4614EV U1 G1 G2 G3 G4 G5 L2 G6 G7 G8 G9 G10 G11 H2 G12 H1 H7 H8 H9 H10 L5 L4 K5 K6 H11 H12 J7 J8 K7 K8 L1 L7 L8 M1 K3 K4 M2 M3 M4 M5 M6 J9 J10 J11 J12 J5 J6 K1 K2 H3 L6 K10 K11 K12 K9 J1 J2 J3 J4 L3 L9 L10 L11 L12 A1 A2 A3 A4 A5 E5 A6 A7 A8 A9 A10 A11 A12 B1 B7 B8 ...

Страница 8: ...UDING 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 the goo...

Страница 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1385A ...

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