DC2043A - Schematic

REVISION HISTORY
1. ALL RESISTORS ARE IN OHMS, 0402, 1%, 1/16W.
BATTERY 1
2. ALL CAPACITORS ARE IN MICROFARADS, 0805, 20%, 25V.
BATTERY 2
NOTES: UNLESS OTHERWISE SPECIFIED
3. INSTALL SHUNTS ON JUMPERS AS SHOWN.
VREG
2.5V
BATY
LED
TERM1
OFF
OFF
OFF
ON
BATTERY 3
ON
BATTERY 4
ON
TERM2
TERMINATION
VOLTAGE
0
0
± 12.5mV
1
0
± 25mV
ON
0
1
±50mV
OFF
1
1
± 100mV
ECO
TP8
NG5
SD
JP2
JP3
CONT.
JP1
TIMER
ISET
R31
1.82M
R32
1.82M
5
6
7
8
VH
VL
TP10
NG7
NG7
Q7
SiR882DP
3
2
1
R26 1k
R27 1k
R28 1k
R29 1k
OVFLT
E5
OVFLTB
19
BATY
18
BATX
17
NG9
BATY
E6
NG8
16
15
GND
DONE
BAL
CP
UVFLT
CM
OVFLT
BOOST
BATY
V4
BATX
V3
NG9
AUXP
AUXN
NG8
V1
CP TP17
37
38 TP1
1210
2 BAT4_K
3 BAT3_K
BAT4
1210
C15
10uF
1206
4
C6
1206
10uF
1206
AUXP_K
F9
1/4A
R12 10
AUXP
C16
1206
10uF
1206 F10
1/4A
6 BAT2_K
C13
10uF
1206
GND_K
C14
10uF
1206
1206
BAT1_K
1
2
3
Q8
3
2
1
E23
TP6
NG2
SiR882DP
NG2
E24
TP11
R17
NG8
NG8
10
AUXN_K
AUXN_K
C12
10uF
1206
TP12
NG9
NG9
TP5
NG1
NG1
0805
R18
E19
F2
7A
F7
1/4A
BAT2
1206
9.5V-15.5V
F1
7A
4.7uF
BAT1_K
F8
1/4A
BAT1
1206
9.5V-15.5V
GND
GND
E14
SiR882DP
GND_K
3.3V - 5.5V
GND_K
E15
R36
100k
BALB
C11
4.7uF
GND_K
D3
LED-LN
RED
PTCFLT
GRN
R37
2k
DONE
D6
LED-LN
RED
D5
LED-LN
GRN
D4
LED-LN
R38
2k
BAL
R39
2k
UVFLT
D7
LED-LN
RED
R40
2k
OVFLT
R41
2k
D8
LED-LN
GRN
BATY
VEXT_RTN
E16
E13
BAT1_K
E21
1206
6.04K
1
2
3
E12
BAT2_K
E20
1206
C1
R1
Q1
8
7
6
5
E11
BAT3_K
BAT1
R10 12.1k
10
VEXT
1
2
3
SiR882DP
Q9
SiR882DP
3
5
2
6
1
7
8
R9 6.04k
1206
6.04K
8
7
6
5
BAT3
F6
1/4A
BAT2
R2
Q2
F3
7A
9.5V-15.5V
4.7uF
BAT2_K
R11 12.1k
0805
5
6
7
8
E18
1206
C2
9.5V-15.5V
AUXN
AUXP_K
1
2
3
Q3_2
SiR882DP
8
7
6
5
E8
E9
1206
BAT3
4.7uF
BAT3_K
R3 3.01K
8
7
6
5
R8 6.04K
5
Q3_1
SiR882DP
PTGLESARR15M1B51B0
t
CMMSH1-100G
C5
10uF
D2
CMMSH1-100G
1206 TP18
CM R35 249
BOOST
1
RT1
D1
R19 665 R34 665
39
7
NG1
NG1
8
NG2
NG2
9
NG3
NG3 10
NG4
NG4 11
NG5
NG5 12
NG6 13
NG7
NG7 14
NG6
V2
BATX
E7
SiR882DP
8
7
6
5
E10
BAT4_K
9.5V-15.5V
1
36
35
GND_K
NC
33
32
34
EN1
EN2
31
30
VREG
28
29
ISET
27
VL
VH
26
25
24
PTCFLT
TP13
NG3
NG3
2
20
MODE
21
UVFLTB
TERM1
BALB
TERM2
22
CTBAT
DONEB
BAT4_K
C3
6.04k
4
R25 1k
23
1
2
3
4
R24 1k
PTCFLTB
CTON
R23 1k
CTOFF
LTC3305EFE
BAT4
F5
1/4A
Q4
R7
R16
10
DONE
E2
C4
4.7uF
R13 10
R4 6.04K
U1
UVFLT
E4
10
R33
1.82M
F4
7A
BAT4
1206
6.04k
4
R30
1.82M
9- 23 - 14
R6
R15
TP16
TP15
TP14
CTBAT
1
2
3
TP7
NG4
NG4
PTCFLT
E1
BAL
E3
NG6
3
2
1
4
CTON
0
EN
TP9
NG6
C10
1uF
16V
0603
10%
SiR882DP
8
7
6
5
4
TP2
0
JP4
1
MODE
DATE
JD
Q5
4
CTOFF
TP3
46.4k 12.1k
1
EN
APPROVED
R14 10
4
TP4
C9
10nF
50V
5%
28.7k
TERM1
PRODUCTION FAB
4
C8
10nF
50V
5%
C7
33nF
50V
5%
R20 TERM2
R21
DESCRIPTION
3
R5 6.04k
SiR882DP
5
6
7
8
VREG
R22
NG5
Q6
E17
GND_K
REV
4
BATX
LED
4
BATTERY BEING
BALANCED
PTCFLTB
DONEB
BALB
UVFLTB
OVFLTB
BATY
E22
Q10
CMPDM8120
D9
LED-LN
GRN
R42
2k
BATX
BATX
R43
2k
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
TECHNOLOGY
NC
JD
TITLE: SCHEMATIC
LEAD ACID BATTERY BALANCER
SIZE
IC NO.
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
DATE:
9 - 23 - 14
REV.
LTC3305EFE
DEMO CIRCUIT 2043A
3
SHEET
1
OF 1
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