DC1830A - Schematic

5
3
3
2
1
3
2
1
D
4
CC1
OPT
CIGATE
OPT
ITH
CC2
RC1
4.22k
24
RBFB1
1M
RBFB2
+
ROFB2
21
17
FBG
OFB
BIAS
D1
BZX84C3V0
RVM2
10k
CTMR
0.1uF
2
BAT
E14
2
RCL
24.3k
E15
1
CNTC
OPT
14
2
D2
OPT
R2
OPT
3
13
GND
R3
OPT
7
CCX
OPT
CBIAS
1uF
10V
RCX
*
2
3
E6
JP2
GND
GND
E21
GND
E16
IBMON
ENABLE
CIIMON
1000pF
DISABLE
JUMPER
1
2
E7
CIBMON
1000pF
E17
IIMON
BIAS
R4
JP4
CHRG
D4
GREEN
R5
2.2k
100k
3
D3
RED
B
CHRG_LED
E8
*
R18
4.7k
*
OPTIONAL THERMAL PROTECTION FOR Q1
DURING VOUT-SYS SHORT CIRCUIT
R6
4.7k
R7
1
FLT_LED
100k
D5
RED
E9
LED_PWR
BIAS
5
HYST
R15
20k
R16
38.3k
6
OUT
R17
1Meg
E10
GND
3
2
RST_LED
8
1
2N7002L
ASSY
-A
PROTECT CKT. FOR Q1
REG CKT. FOR Q2
JUMPER
Q2
Q4
ROFB2
RCX
CL
LOADED
SI7135DP
LRC-LRZ-2010LF-R000
84.5k
10.0k
2.2uF
10nF
NOT LOADED
NO INSTALL
INSTALL
OPT
-B
LOADED
NOT LOADED
NO INSTALL
OPT
0 OHM
OPT
NO INSTALL
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.
6 REF
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
CBGATE
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
GND
RNTC2
10k
+
-
Q6
2
IN-
JP1
1
NOTE: UNLESS OTHERWISE SPECIFIED
3
7
IN+
4
NTC
1
R12
1Meg
2N7002L
3
V-
6 REF
1
2
6
OUT
8
2
HYST
Q5
V+
IN-
5
V-
R10
20k
4
+
-
GND
R11
38.3k
IN+
R14
78.7k
1
RNTC3
10k
3
U3
LTC1540CMS8
R13
10k
V+
7
R9
46.4k
IL
3
U2
LTC1540CMS8
C1
4.7uF
10V
R19
100k
*
THERMAL REGULATION FOR Q2
DURING 'INSTANT-ON' OPERATION
BIAS
2
R8
10k
3
2
FLT
RST
E18
BIAS
JP3
BIAS
NOT ON THE BOARD
3
*
B
C
J8
J9
TMR
CHARGE
1
D
E13
BIAS
J5
GND
A
GND
E12
J7
BAT
NTC
RST
GND
GND
28
GND
RIL CCL
18.2k OPT
CIL
OPT
10
29
CL
4
9
IL
TMR
8
IL
TMR
IBMON
1
CVM
OPT
CX
6
IIMON
CHRG
12
E5
ENC
RVM1
143k
5
VIN+
3
IN
FLT
27
CIN
1uF
50V
1210
J4
E11
GND
BIAS
11
CLN
VM
VIN+
3V-60V
26
1
C
06-23-11
VOUT- SYS
NTC
NTC
RIS1
0.015
DATE
DAVID B.
ITH
E3
GND
E4
APPROVED
VOUT- SYS
CBAT
150uF
35V
U1
LTC4000EUFD
*
DESCRIPTION
PRODUCTION FAB
CL1 - CL5
OPT
1206 X
5
PLCS
1206
F3
FUSE
OPT
OPT
VIN
CL
84.5k
BAT
18
19
BGATE
R1
20
23
CC
BIAS
VIN
*
0.1uF
OPT
J3
ROFBX
OPT
JUMPER
*
IID
R20
25
PULLUP
E20
RBFBX
OPT
CBGATE
2
*
50V
ROFB1
1M
7
6
5
8
RBG
OPT
CSP
E19
*
3
2
1
RIG
OPT
22
J2
3
2
1
IGATE
GND
7
6
5
8
COUT
2.2uF
50V
1206
REV
-
J6
F2
FUSE
Q4
RCS
0.01
ECO
16
E2
7
6
5
8
BFB
4
Q3 OPT
Si7135DP
1
REVISION HISTORY
F1
FUSE
OPT
15
E1
GND
*
4
VOUT
2
Q2
7
6
5
8
4
J1
CSN
VOUT
3V-30V
4
Q1
Si7135DP
3
APPROVALS
PCB DES.
NC
APP ENG.
DAVE B.
TECHNOLOGY
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
BATTERY CHARGER AND POWER MANAGEMENT BOARD
SIZE
IC NO.
N/A
SCALE = NONE
2
DATE:
LTC4000EUFD
DEMO CIRCUIT 1830A - A / B
06-23-11
SHEET 1
1
REV.
2
OF
1
A
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