DC1229B - Schematic

5
4
3
E2
2
1
E1
R1 0
VIN
C6
4.7uF
50V
1210
0805
7.5V - 32V
+
CHRG
D3
RED
C3
4.7uF
50V
1210
SYSTEM LOAD
E8
D4
GRN
1
1
R2
5.1K
1206
R3
5.1K
1206
1
* U1
2
C12
0.01uF
0603
50V
(OPT)
VIN
12
SW
CLP
BOOST
11
SENSE
10
3
LT3650EDD
4
C
CHRG
2
FAULT
BAT
9
1
2
3
JP1
SHDN
1
3
R5
100K
NTC
8
TIMER GND RNG/SS
6
13
D2
CMPSH1-4
R4
0.05
1206
1/4W
E4
R8
0.1
1206
1/2W
7
1
2
VFLOAT *
C4
10uF
16V
0805
10%
C10
0.022uF
16V
2A
C11
0.022uF
16V
E5
GND
JP2
3
0
C
BAT
C9
100uF
6.3V
1206
20%
1
5
0
D1
CMSH3-40MA
C1
1uF
50V
0805
2
R7
1.0Meg
2
IHLP-2525CZ-01
1
E3
GND
D
GND
L1 6.8uH
2
C2
22uF
50V
20%
D
1
FAULT
1
2
3
C8
0.1uF
J1
(OPT)
BAT
GND
NTC
DF3-3P-2DSA
RUN
UVLO
JP1
1
1
0
JP2
1
0
X
NTC
C/10
E7
2
* VERSION TABLE
Assembly Version
U1
DC1229B - A
LT3650EDD - 4.2
4.2V
DC1229B - B
LT3650EDD - 4.1
4.1V
C7
0.68uF
VFLOAT *
Unless noted:
Resistors: Ohms
0402
1%
1/16W
Capacitors:
0402
10%
10V
A
4
RNG / SS
JP3
3
TIMER
5
B
E6
SHDN
1
B
C5
0.1uF
R6
(OPT)
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
1/19/09
CHECKED
TECHNOLOGY
TITLE
APPROVED
ENGINEER J.Drew
1/19/09
DESIGNER
Wednesday, April 01, 2009
2
A
LT3650EDD - 4.2 / LT3650EDD - 4.1
2A Monolithic Li-Ion Battery Charger
SIZE CAGE CODE
SCALE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
FILENAME:
DWG NO
DC1229B - A/B
SHEET
1
1
OF
REV
B
1
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