DC1835A - Schematic

5
4
3
2
1
REVISION HISTORY
S11
17
1
1
R6 100 1%
C6
18
CELL3
6
CELL2
5
CELL1
4
CELL0
3
2
R30
475
R42
33
2512
1%
19
C6
100nF
Q6
LED6
R18 3.3k
1
7
20
21
S6
RQJ0303PGDQALT
3
22
R5
100 1%
C9
A0
S9
GP102
C8
GP101
S8
WDTB
C7
TOS
S7
VREG
C6
VREF
S6
VTEMP2
C5
VTEMP1
S5
NC
C4
V-
S4
C0
C3
S1
S3
C1
C2
S2
+5V
A3
39
A2
38
A1
37
A0
36
GPI02
GP102
35
GPI01
GP101
K1
WDTB
L2
WDTB
33
TOS
R50
1M
3
L1
R52
1M
VREG
VREF
30
VTHEMP2
C15
R41
33
2512
1%
29
VTEMP1
C17
4.7uF
10V
0805
27
R40
33
2512
1%
26
25
A3
R55
110k
1206
1%
24
23
Q13
1
2N7002
A3
+12V
C4
100nF
A1
1
0
A0
C3
1
1
B8
A7
VL
ON
A8
B7
VCC
3
13
JP2
5
EEGND
NC
14
3
VREG
GND1
VIN
GND3
VCC
CS
MISO
SCK
MOSI
1
GND2
3
11
JP1
10
R62
4.99K
R63
4.99K
1%
6
3
2
C2
100nF
1
SCL
1%
C19
9
12
100nF
1
B
2
6
4
8
EESCL
EEVCC
EESDA
EEGND
NC
14
WP
A2
A1
A0
SDA
S2
RQJ0303PGDQALT
5
U3
24LC025-I/ST
C1
2
C1
100nF
1
Q1
R13 3.3k
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
S1
RQJ0303PGDQALT
R56 0
C0
R61 0
TECHNOLOGY
MI
JON M.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
ISOLATED 12-CELL BATTERY MONITOR
4
3
2
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
SIZE
5
EESDA
H1
3
7
100 1%
EEVCC
SPI BUS IN
C2
R14 3.3k
4
8
EESCL
HOSTGND
3
S3
100 1%
6
JP3
I
0
2
EXT HOST
7
TOS
SCK
MOSI
1
E2
VREG
S4
R15 3.3k
Q2
3
1%
I
2
A
LED1
R37
33
2512
JP4
C3
100nF
R1
R25
475
0
CS
MISO
C
1
+5V SOURCE
JP6
E3
EXT +5V
3
RQJ0303PGDQALT
LED2
R38
33
2512
JP5
I
1
R2
1%
1
VCC
3
VREG
A0
Q3
3
R26
475
I
4
1%
0
A2
TOS
R39
33
2512
1
VIN
GND3
VREG
VREG
A2
A1
R54
10K
1%
C4
R3 100 1%
R27
475
0
GND1
GND2
12
2
LED3
7
CELL12
RQJ0303PGDQALT
3
5
9
S5
R16 3.3k
1
LED4
R28
475
AV-
13
10
2
Q4
K6
AVCC2
VTEMP2
28
C5
100nF
R4 100 1%
3
3
11
RQJ0303PGDQALT
B
I2
1uF
C5
R17 3.3k
1
R29
475
E1
LTC6803 V-
A4
I1
C14
1uF
H2
SPI BUS OUT
A2
DO2
SDI
K7
32
31
A5
A6
SDOEB
SCK2
MBR0540
A3
CSB
LTM2883Y-5S
SDI2
L3
VREG
U2
D3
A1
SCK
SDO2
L4
2
Q5
LED5
CS2B
R60
OPT
B1
DO1
SDO
2
1
AV+
L5
R51
1M
VCC
K8
40
34
L6
A1
L8
S10
V+
A2
VCC2
A3
C10
CK
2
16
RQJ0303PGDQALT
S11
41
C22
1uF
8
1%
S7
SCKI
DI
VCC
CELL4
15
R19 3.3k
C11
42
GND
CELL5
8
R43
33
2512
14
SDI
+12V +5V
GND
9
R31
475
C7
100nF
SD0
S12
DO
B5
CELL6
13
2
Q7
C12
4.3k
43
GND
10
3
LED7
CSBI
B4
CELL7
12
C7
V+
CS
GND
CELL8
11
11
100 1%
R53
44
GND
CELL9
12
9
10
S8
RQJ0303PGDQALT
R7
CK
B3
13
1%
R20 3.3k
D1
B2
CELL10
8
C8
100nF
Q8
R44
33
2512
DO
GND2
CELL11
14
R32
475
C20
1uF
100V
1206
C21
1uF
100V
1210
3.24M 1%
GND2
6
2
LED8
CELL12
15
6
FB
K5
C
D
+54V
R59
GND2
5
C8
7
3
CELL VOLTAGES
53V MAX
J1
16
SHDN
MBR0540
GND2
4
S9
100 1%
1
8
7
VOUT
11
3
RQJ0303PGDQALT
R8
CNTRL
9
K4
1%
C9
100nF
R21 3.3k
CAP
2
R45
33
2512
CS
LTC6803IG-4
1
2
Q9
1
R33
475
C13
100nF
0805
C9
2
LED9
VCC
10
V-
3
100 1%
CAP
JON M.
3
+5V
VU1
S10
RQJ0303PGDQALT
R9
SW
GND
APPROVED
D1 BAT54S
L7
R22 3.3k
GND
2
1%
R49
100
1%
C10
100nF
Q10
1
R46
33
2512
C10
2
LED10
5
R58
1M
1%
+54V
R10 100 1%
R34
475
3
4
R23 3.3k
RQJ0303PGDQALT
3
1
2
25V
0805
2
1%
R57
1M
1%
C11
100nF
2
R47
33
2512
1
LED11
R35
475
C11
2
Q11
DATE
07/12/11
04/18/14
D2
K3
3
C16 2.2uF
PRODUCTION
CORRECT L1 VALUE
1
50V 0805
LT3495EDDB-1
K2
R11 100 1%
D
+12V
C18 220nF
1210
U4
S12
RQJ0303PGDQALT
DESCRIPTION
2
10uH
GND
R24 3.3k
1
R48
33
2512
1%
REV
1
L1
C12
100nF
Q12
LED12
R36
475
C12
2
2
3
ECO
+54V
GND
CELL12
+12V
B6
R12 100 1%
IC NO.
REV.
LTC6803IG-4
DEMO CIRCUIT 1835A
DATE: Friday, April 18, 2014
SHEET
1
1
1
OF
1
A
5
4
3
2
1
USED TO MANUFACTURE PCB
X1
X2
X7
1
1
1
MH1
1
REPRESENTS TOOLING HOLES
MH2
1
MH3
MH4
1
1
REPRESENTS STAND OFFS
D
D
C
C
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.
B
TECHNOLOGY
APPROVALS
DRAWN
LTC6803IG-4
www.linear.com
CHECKED
ISOLATED 12-CELL BATTERY MONITOR
B
APPROVED
ENGINEER JON MUNSON 05/19/11 SIZE CAGE CODE
DWG NO
Friday, June 24, 2011
REV
DC1835A
DESIGNER
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
IC.NO
DATE TITLE
04/26/11
MI
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
SCALE: NONE FILENAME: 1835a-1.PCB
SHEET
1
1
OF
A
1
A
5
4
3
2
1
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