5
dc1338bf
DEMO MANUAL DC1338B
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However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
t i o n t h a t t h e i n t e r c o n n e c t i o n o f i t s c i r c u i t s a s d e s c r i b e d h e r e i n w i l l n o t i n f r i n g e o n e x i s t i n g p a t e n t r i g h t s .
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
+5V
VUNREG
026,6'$
SCK/SCL
EEGND
EESDA
EESCL
EEVCC
9&&
9&&
9
9&&
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
/(2&+(1352'8&7,21
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
/(2&+(1352'8&7,21
REVISION HISTORY
DESCRIPTION DATE
APPROVED
ECO REV
/(2&+(1352'8&7,21
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
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 THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
February 16, 2012
11
7(03(5$785(92/7$*($1'&855(17021,725
5%
Leo C.
N/A
LTC2990CMS
DEMO CIRCUIT 1338B
C:\PADS PROJECTS\1338B\SCH\1338B_REV1.DSN
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
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 THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
February 16, 2012
11
7(03(5$785(92/7$*($1'&855(17021,725
5%
Leo C.
N/A
LTC2990CMS
DEMO CIRCUIT 1338B
C:\PADS PROJECTS\1338B\SCH\1338B_REV1.DSN
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
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 THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
February 16, 2012
11
7(03(5$785(92/7$*($1'&855(17021,725
5%
Leo C.
N/A
LTC2990CMS
DEMO CIRCUIT 1338B
C:\PADS PROJECTS\1338B\SCH\1338B_REV1.DSN
E7
V4
E7
V4 C2
0.1uF
C2
0.1uF
TP2
SDA
TP2
SDA
JP4
1
0
ADR0
JP4
1
0
ADR0
1
3
2
Q1
FMMT3906
Q1
FMMT3906
E1 VCC
EXT
3V - 5.5V
E1 VCC
EXT
3V - 5.5V
JP7
TEMP
VOLT
V4
JP7
TEMP
VOLT
V4
1
3
2
TP1
SCL
TP1
SCL
J1J1
1
3
2
4
5
6
7
8
9
10
11
13
12
14
R1
4.99K
1%
R1
4.99K
1%
E6
V3
E6
V3
E8
GND
E8
GND
JP2
EXT
INT
VCC
JP2
EXT
INT
VCC
1
3
2
JP6
TEMP
VOLT
V3
JP6
TEMP
VOLT
V3
1
3
2
C4
470pF
C4
470pF
E3
V+
E3
V+
E4
V1
E4
V1
8
/7&&06
8
/7&&06
V3
3
SDA 6
V2
2
ADR0 8
V4
4
SCL 7
V1
1
VCC 10
ADR1 9
GND 5
E2
GND
E2
GND
Q2
FMMT3904
Q2
FMMT3904
JP5
TEMP
VOLT
V2
JP5
TEMP
VOLT
V2
1
3
2
JP1
1
0
ADR1
JP1
1
0
ADR1
1
3
2
C3
470pF
C3
470pF
E5
V2
E5
V2
U2
24LC025-I/ST
U2
24LC025-I/ST
A0 1
A1 2
A2 3
VSS 4
VCC
8
WP
7
SCL
6
SDA
5
R2
4.99K
1%
R2
4.99K
1%
JP3
TEMP
VOLT
V1
JP3
TEMP
VOLT
V1
1
3
2
C1
0.1uF
C1
0.1uF