DC1584A - Schematic

4
3
2
1
REVISION HISTORY
ECO
4
E1
ON
OFF
R1
VBUS
10V - 15V
C1
1uF
25V
0603
10 %
E2
GND
JP7
LBO LED
OFF
R9
1.0
5%
OPT
25 mils clearance
NTC
HBO
2
NTC
GND
GND
5
9
LBO
OPT
1
1
2
3
OPT
R8
1K
5%
E6
4
HBO
E5
6
LBO
E4
2
Charging
GND
HBO LED
JP6
D2
1
Charged
INT
3
BAT
GND
ENTC
2
Q1
FDN352AP
OPT
1
JP5
NTC
JP3
GND
D1
LBO
2
25 mils clearance
25 mils clearance 1
NTCBIAS
R3
10k
E3
7
3
R2
200
DRV
E7
R11
1.0
5%
OPT
J1
DF3-3P-2DSA
8
VCC
R10
1.0
5%
OFF
C2
0.22uF
25V
0805
ADJ
4
BAT
75mA
OPT
U1
LTC4070EDDB
3
10/15/09
100uF
6.3V
1206
20 %
ON
4.2V
4.1V
4.0V
DATE
NJC
E8
JP4
SHUNT
JP2
VFLOAT
APPROVED
PRODUCTION RELEASE
C3
ON
3
DESCRIPTION
A
25 mils clearance
169
1%
2512
JP1
VIN
REV
2
HBO
R7
Charging
1K
5%
Charged
2
R4
EXT
0
R5
0
R6
10k
1
Unless noted:
Resistors: Ohms, 0402, 1%, 1/16W
Capacitors: uF, 0402, 10%, 50V
CUSTOMER NOTICE
CONTRACT NO.
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
CIRUIT 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.
4
3
2
APPROVALS
TECHNOLOGY
DRAWN:
G. Barbehenn
CHECKED:
APPROVED:
ENGINEER:
G. Barbehenn
DESIGNER:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE:
LTC4070EDDB: SIMPLE LOW - Iq BATTERY
CHARGER / PROTECTOR WITH NTC THERMISTOR INPUT
SIZE
X
DATE:
DWG NO.
REV
DC1584A
A
SHEET
Wednesday, November 04, 2009
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