DC1473A - Schematic

5
4
3
D5
2
1
CHRG
+
D3
RED
2
2
1
C2
22uF
50V
20%
FAULT
0805
C13
4.7uF
50V
1210
D4
GRN
C6
4.7uF
50V
1210
C3
4.7uF
50V
1210
E4
GND
D
L1 10uH
2
12V - 32V
E3
SYSTEM LOAD
CMSH3-40MA
D
1
R1 0
1
1
E1
VIN
2
1
1
R2
5.1K
1206
R3
5.1K
1206
1
2
C12
0.01uF
0603
50V
(OPT)
C1
1uF
50V
0805
12
VIN
SW
CLP
BOOST
11
SENSE
10
D1
CMSH3-40MA
2
R7
1.0Meg
3
LT3650EDD
CHRG
5
FAULT
BAT
9
3
SHDN
NTC
8
2
D2
R4
0.05
1206
E5
C
BAT
1
C
CMPSH1-4
4
1
E2
GND
2
IHLP-2525CZ-01
1
2
JP1
1
1
U1
R5
100K
3
0
C9
100uF
10V
1210
20%
TIMER GND RNG/SS
6
13
R8
0.05
1206
7
2
C4
10uF
10V
0805
10%
C10
0.022uF
16V
C11
0.022uF
16V
VFLOAT*
2A
E6
GND
JP2
(OPT)
3
0
C8
0.1uF
16V
1
2
3
BAT
GND
NTC-EXT
J1
DF3-3P-2DSA
B
UVLO
SHDN
JP1
1
1
0
JP2
1
0
X
B
E7
NTC
1
RUN
C/10
E8
2
RNG/SS
JP3
3
TIMER
C7
0.68uF
R6
(OPT)
C5
0.1uF
16V
* VERSION TABLE
A
Assembly Version
U1
VFLOAT*
DC1473A - A
LT3650EDD - 8.4
8.4V
DC1473A - B
LT3650EDD - 8.2
8.2V
5
Unless noted:
Resistors: Ohms
0402
1%
1/16W
Capacitors:
0402
10%
10V
4
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
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
CONTRACT NO.
APPROVALS
DRAWN
J.Drew
DATE
8/25/08
CHECKED
TECHNOLOGY
TITLE
APPROVED
ENGINEER J.Drew
8/25/08
DESIGNER
SIZE CAGE CODE
SCALE:
2
A
LT3650EDD - 8.4, LT3650EDD - 8.2
2A Monolithic 2 Cell Li-Ion Battery Charger
A
Tuesday, April 14, 2009
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
FILENAME:
DWG NO
DC1473A - A/B
SHEET
1
1
OF
REV
A
1
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