![Linear Technology DC1825A Demo Manual Download Page 5](http://html1.mh-extra.com/html/linear-technology/dc1825a/dc1825a_demo-manual_1922421005.webp)
5
dc1825af
DEMO MANUAL DC1825A
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
V
IN
G
ND
+
5V
2
2
V
-
7
5
V
10
0V
M
ICRO
P
O
W
E
R
IS
O
L
AT
E
D
F
L
Y
BACK
CO
NV
E
RT
E
R
7
5
0
3
1
2
3
6
6
N
O
T
E:
U
N
L
ESS
O
T
H
ER
W
ISE
SPEC
IF
IED
1.
ALL
RE
S
IS
TO
RS
AND
CAP
ACI
TO
RS
ARE
0
60
3.
SEE
QSG
*
5
.6
V
+
5
V
/ 0
.2
5
A
V
IN
SW
SIZ
E
DATE
:
IC
N
O
.
R
EV.
SH
EET
O
F
TI
TLE
:
AP
P
RO
V
AL
S
PC
B
D
ES.
A
PP
EN
G
.
T
E
C
H
N
OLOGY
F
ax
:
(4
08
)4
34
-0
50
7
M
ilp
it
as
, C
A
9
50
35
Ph
o
n
e
:
(4
0
8
)4
3
2
-1
9
0
0
16
30
M
cC
ar
th
y
B
lv
d
.
LTC
C
onf
ide
nt
ia
l-
For
C
us
tom
er
U
se
O
nl
y
C
US
T
O
ME
R
NO
T
ICE
L
INE
AR
T
E
CHNO
L
O
G
Y
HAS
M
ADE
A
BE
S
T
E
F
F
O
RT
T
O
DE
S
IG
N
A
CI
RCUI
T
T
HAT
M
E
E
T
S
CUS
T
O
M
E
R-
S
UP
P
L
IE
D
S
P
E
CI
F
ICAT
IO
NS
;
H
O
W
EVER
, I
T
R
EM
A
IN
S
T
H
E
C
U
ST
O
M
ER
'S
R
ESPO
N
SI
B
IL
IT
Y
T
O
V
E
RI
F
Y
P
RO
P
E
R
AND
RE
L
IABL
E
O
P
E
RAT
IO
N
IN
T
HE
ACT
UAL
AP
P
L
ICAT
IO
N.
CO
M
P
O
NE
NT
S
UBS
T
IT
UT
IO
N
AND
P
RI
NT
E
D
CI
RCUI
T
BO
ARD
L
AY
O
UT
M
AY
S
IG
NI
F
ICANT
L
Y
AF
F
E
CT
CI
RCU
IT
P
E
RF
O
RM
ANCE
O
R
RE
L
IABI
L
IT
Y
.
CO
NT
ACT
L
INE
AR
T
E
CHNO
L
O
G
Y
AP
P
L
ICAT
IO
NS
E
NG
INE
E
RI
NG
F
O
R
AS
S
IS
T
ANCE
.
T
HI
S
CI
RCUI
T
IS
P
RO
P
RI
E
T
ARY
T
O
L
INE
AR
T
E
CHNO
L
O
G
Y
AN
D
S
CHE
M
ATI
C
S
UP
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
.
S
CALE
=
NO
NE
w
w
w
.line
ar
.c
om
2
M
on
da
y, J
uly
0
2, 2
01
2
11
HZ
Z
H
ON
GM
IN
G
Y
.
N/A
L
T
8300E
S
5
DE
M
O
CI
RCUI
T
1
82
5A
SIZ
E
DATE
:
IC
N
O
.
R
EV.
SH
EET
O
F
TI
TLE
:
AP
P
RO
V
AL
S
PC
B
D
ES.
A
PP
EN
G
.
T
E
C
H
N
OLOGY
F
ax
:
(4
08
)4
34
-0
50
7
M
ilp
it
as
, C
A
9
50
35
Ph
o
n
e
:
(4
0
8
)4
3
2
-1
9
0
0
16
30
M
cC
ar
th
y
B
lv
d
.
LTC
C
onf
ide
nt
ia
l-
For
C
us
tom
er
U
se
O
nl
y
C
US
T
O
ME
R
NO
T
ICE
L
INE
AR
T
E
CHNO
L
O
G
Y
HAS
M
ADE
A
BE
S
T
E
F
F
O
RT
T
O
DE
S
IG
N
A
CI
RCUI
T
T
HAT
M
E
E
T
S
CUS
T
O
M
E
R-
S
UP
P
L
IE
D
S
P
E
CI
F
ICAT
IO
NS
;
H
O
W
EVER
, I
T
R
EM
A
IN
S
T
H
E
C
U
ST
O
M
ER
'S
R
ESPO
N
SI
B
IL
IT
Y
T
O
V
E
RI
F
Y
P
RO
P
E
R
AND
RE
L
IABL
E
O
P
E
RAT
IO
N
IN
T
HE
ACT
UAL
AP
P
L
ICAT
IO
N.
CO
M
P
O
NE
NT
S
UBS
T
IT
UT
IO
N
AND
P
RI
NT
E
D
CI
RCUI
T
BO
ARD
L
AY
O
UT
M
AY
S
IG
NI
F
ICANT
L
Y
AF
F
E
CT
CI
RCU
IT
P
E
RF
O
RM
ANCE
O
R
RE
L
IABI
L
IT
Y
.
CO
NT
ACT
L
INE
AR
T
E
CHNO
L
O
G
Y
AP
P
L
ICAT
IO
NS
E
NG
INE
E
RI
NG
F
O
R
AS
S
IS
T
ANCE
.
T
HI
S
CI
RCUI
T
IS
P
RO
P
RI
E
T
ARY
T
O
L
INE
AR
T
E
CHNO
L
O
G
Y
AN
D
S
CHE
M
ATI
C
S
UP
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
.
S
CALE
=
NO
NE
w
w
w
.line
ar
.c
om
2
M
on
da
y, J
uly
0
2, 2
01
2
11
HZ
Z
H
ON
GM
IN
G
Y
.
N/A
L
T
8300E
S
5
DE
M
O
CI
RCUI
T
1
82
5A
SIZ
E
DATE
:
IC
N
O
.
R
EV.
SH
EET
O
F
TI
TLE
:
AP
P
RO
V
AL
S
PC
B
D
ES.
A
PP
EN
G
.
T
E
C
H
N
OLOGY
F
ax
:
(4
08
)4
34
-0
50
7
M
ilp
it
as
, C
A
9
50
35
Ph
o
n
e
:
(4
0
8
)4
3
2
-1
9
0
0
16
30
M
cC
ar
th
y
B
lv
d
.
LTC
C
onf
ide
nt
ia
l-
For
C
us
tom
er
U
se
O
nl
y
C
US
T
O
ME
R
NO
T
ICE
L
INE
AR
T
E
CHNO
L
O
G
Y
HAS
M
ADE
A
BE
S
T
E
F
F
O
RT
T
O
DE
S
IG
N
A
CI
RCUI
T
T
HAT
M
E
E
T
S
CUS
T
O
M
E
R-
S
UP
P
L
IE
D
S
P
E
CI
F
ICAT
IO
NS
;
H
O
W
EVER
, I
T
R
EM
A
IN
S
T
H
E
C
U
ST
O
M
ER
'S
R
ESPO
N
SI
B
IL
IT
Y
T
O
V
E
RI
F
Y
P
RO
P
E
R
AND
RE
L
IABL
E
O
P
E
RAT
IO
N
IN
T
HE
ACT
UAL
AP
P
L
ICAT
IO
N.
CO
M
P
O
NE
NT
S
UBS
T
IT
UT
IO
N
AND
P
RI
NT
E
D
CI
RCUI
T
BO
ARD
L
AY
O
UT
M
AY
S
IG
NI
F
ICANT
L
Y
AF
F
E
CT
CI
RCU
IT
P
E
RF
O
RM
ANCE
O
R
RE
L
IABI
L
IT
Y
.
CO
NT
ACT
L
INE
AR
T
E
CHNO
L
O
G
Y
AP
P
L
ICAT
IO
NS
E
NG
INE
E
RI
NG
F
O
R
AS
S
IS
T
ANCE
.
T
HI
S
CI
RCUI
T
IS
P
RO
P
RI
E
T
ARY
T
O
L
INE
AR
T
E
CHNO
L
O
G
Y
AN
D
S
CHE
M
ATI
C
S
UP
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
.
S
CALE
=
NO
NE
w
w
w
.line
ar
.c
om
2
M
on
da
y, J
uly
0
2, 2
01
2
11
HZ
Z
H
ON
GM
IN
G
Y
.
N/A
L
T
8300E
S
5
DE
M
O
CI
RCUI
T
1
82
5A
RE
V
IS
IO
N HIS
T
O
RY
DE
S
CRI
P
T
IO
N
DAT
E
A
PPR
O
VED
EC
O
R
EV
ZHO
NG
M
ING
Y
.
P
RO
DUCTI
O
N
2
1-9-12
_
_
RE
V
IS
IO
N HIS
T
O
RY
DE
S
CRI
P
T
IO
N
DAT
E
A
PPR
O
VED
EC
O
R
EV
ZHO
NG
M
ING
Y
.
P
RO
DUCTI
O
N
2
1-9-12
_
_
RE
V
IS
IO
N HIS
T
O
RY
DE
S
CRI
P
T
IO
N
DAT
E
A
PPR
O
VED
EC
O
R
EV
ZHO
NG
M
ING
Y
.
P
RO
DUCTI
O
N
2
1-9-12
_
_
D2
BZT5
2
C5
V
6
T-
7
D2
BZT5
2
C5
V
6
T-
7
1
2
OPT
C1
0
8
0
5
OPT
C1
0
8
0
5
T1T1
4
6
1
2
3
E2
V
O
UT-
E2
V
O
UT-
R2 5
3
.6
K
1
%
R2 5
3
.6
K
1
%
E1E1
D1
D
F
L
S1
3
0
L
D1
D
F
L
S1
3
0
L
1
2
R
3
3
6
5
K
R
3
3
6
5
K
R1 8
0
6
K
1
%
R1 8
0
6
K
1
%
E4
V
O
UT+
E4
V
O
UT+
E3E3
3
.3
n
F
2
5
0
C4
1
2
1
0
3
.3
n
F
2
5
0
C4
1
2
1
0
R4
OPT
R4
OPT
2
.2
u
F
1
0
0
V
C2
1
2
1
0
2
.2
u
F
1
0
0
V
C2
1
2
1
0
100u
F
C3
6
.3
V
1210
100u
F
C3
6
.3
V
1210
U1
L
T
8
3
0
0
ES5
U1
L
T
8
3
0
0
ES5
V
IN
5
E
N/
UV
1
RFB
3
G
ND
2
SW
4
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from