DC2039A - Schematic

1
2
3
4
5
7
8
REVISION HISTORY
D1
1
15V
GND
R1
47k
5%
C2
10µF
1206
3
C1
2200pF
0805
OPT
R5
0
OPT
2
E4 BZT52C15LP
E2
R3
226k
M1
DMP58D0LFB
E3
5V - 35V
A
C3
10µF
1206
C4
10µF
1206
R7
10k 5%
INFET
CLP
R9
0
0603
OPT
R8
1.0k
5%
R14
0
0603
B
6
CLN
SYS
R17
0
0603
OPT
R13
0
0603
OPT
OUTFET
INTVCC
DRVCC
0
1
0
2
1
38
0
0
37
36
CHEM1
CHEM0
BST
TG
17
R19
C7
0.1µF
3
Rccref
301k
0.1%
0603
CSPM5
16
13
EQ
CSP
Cc2
0.01µF
Cc
0.22µF
10V
Rc
200
9
10
CSN
EQ
NTCBIAS
C18
10µF
1206
C19
10µF
1206
NTC
7
GND
PGND
14
39
C26
120µF
40V
20%
APPROVED
DATE
GB
2 - 4 - 16
E14
SYS
5V - 35V
10A
E13
A
E11
GND
C21
10µF
1206
C20
10µF
1206
M4
Si7611DN
INT_VCC
28
27
25
C13
0.1µF
U1.28
C14
10µF
6.3V
20%
0603
U1.28
M3B
FDMC8030
B
24
L1
23
M3A
FDMC8030
10µH
XAL1010-103ME
26
15
C12
0.33µF
10V
20
RSNSB
0.004
KRL3216T4-M-R004-F
1%
19
18
22
E10
BAT
35V
8A
E9
12
C
Rntcbias
10.0k
VC
RT
+
29
DVCC
SCL
SDA
SMBALERT
SGND
Rt
95.3k
C25
10µF
1206
C24
10µF
1206
C11
1000pF
VCC2P5
3
4
5
6
C23
10µF
1206
PRODUCTION FAB
30
CCREFM
BATSENSE
DVCC
SCL
SDA
nSMBALERT
C15
0.33µF
10V
MPPT
CCREFP
C22
10µF
1206
DESCRIPTION
5
E12
Cb
0.47µF
16V
SW
1.0MEG
5%
31
Db
1N4448HLP
BG
2
32
REV
-
C17
0.1µF
Cpn
1µF
16V
OPT
33
CELLS2
CELLS1
CELLS0
R18
0
0603
21
1
4
R16
0
0603
R12
0
0603
ECO
R21
0
C16
1000pF
C6
100pF
5%
3
M2
DMN62D1SFB
2
R15
0
0603
R11
0
0603
OPT
JP1
MPPT
ON
OFF
INT_VCC
U2
NC7SZ04L6X
R10
0
0603
OPT
34
UVCLFB
SYSM5
R2
10k
5%
R20
0
35
VIN
8
RSNSI
0.003
KRL3216T4-M-R003-F
1%
M5
FDMC8327L
C5
10µF
1206
U1
LTC4015EUHF
R4
64.9k
R6
10.0k
INT_VCC
C
6
E1
VIN
C9
10µF
1206
C8
2.2µF
6.3V
11
C10
10µF
1206
E8
E7
GND
CBAT
PHYSICALLY CLOSE
TO OUTPUT SENSE
PIN OF RSNSB
JP2
NTC
E6
NTC
INT EXT
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
D
TECHNOLOGY
NC
GB
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1
2
3
4
E5
NOTES: UNLESS OTHERWISE SPECIFIED
1. RESISTORS: OHMS, 0402, 1%, 1/16W
2. CAPACITORS: 0402, 10%, 50V
5
IC NO.
N/A
SCALE = NONE
6
NTC
GND
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
35V SYNCHRONOUS STEP-DOWN
CONTROLLER BATTERY CHARGER
REV.
LTC4015EUHF
DEMO CIRCUIT 2039A
DATE: 2 - 4 - 16
5
SHEET
7
8
1
OF
2
D
A
B
C
D
E
INT_VCC
R30
100k
5%
VCC
INT_VCC
U6
6
D2
BAS40LP
2
VCCin
VCC
VCC
R23
10k
5%
J1
USB Micro B RECEPTACLE
TE, 1932788-1
VBUS
D+
DGND
U3
LTM2884CY
A7
4
3
2
U4
VCC
A2
A1
VCC
VCC
VCC
VCC
VCC2
VCC2
VCC2
VCC2
VBUS
VLO2
D1+
D1-
D2+
D2-
L11
L10
L9
L8
C29
10µF
20%
6.3V
0603
OPT
L5
L2
L1
Vdd
VUSB3V3
RA5
RA4
RB7
RB6
RB5
RB4
RC7
RC6
RC5
RC4
RC3
RC2
RC1/ICSPCLK
RC0/ICSPDAT
RA0/D+/ICSPDAT2
RA1/D-/ICSPCLK2
5
A5
A4
A3
A6
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
VLO
ON
SPND-PWR
1
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
L3
L4
L6
L7
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
K11
C32
1000pF
R27
4.7k
5%
R28
4.7k
5%
R29
4.7k
5%
0.1"
RA3/MCLR/Vpp
Vss
PIC16F1459-I/ML
19
20
Vcc
DVcc
SCL
nSMBALERT
SDA
GND
J4
OPT
18
C30
0.47µF
16V
16
15
EQ
VCC
R32
0
C31
0.1µF
14
A11
A10
A9
A8
7
6
3
GND
GND
ID
1
C28
10µF
20%
6.3V
0603
NC7SZ04L6X
TP1
TP2
7
8
9
10
DVcc
SCL
nSMBALERT
SDA
6
5
2
3
4
11
12
13
0.1"
EQ
AUX_SCL
AUX_SDA
nWP
INT_Vcc
GND
3
J3
OPT
VCC
EPAD
17
R25
4.7k
5%
21
R26
4.7k
5%
U5
8
VCC
2
3
VCC
J2
1
SCL
SDA
WP
7
RH
count+
100k
Close
to
J1.1
C27
10µF
20%
6.3V
0603
R22
1.0
5%
R31
0
OPT
4
4
40V
3
4
GND
5
RW
RL
NTC
6
CAT5140ZI-100-GT3 4
2mm
ICD INTERFACE
R24
10k
2
NUMBER OF CELLS
1
CELLS2 CELLS1 CELLS0
CHEM1 CHEM0
CHEMISTRY
Invalid
L
L
L
Li-Ion Programmable
L
1
L
L
H
Li-Ion 4.2V/Cell Fixed
H
H
2
L
H
L
Li-Ion 4.1V/Cell Fixed
L
Z
3
L
H
H
Li-Ion 4.0V/Cell Fixed
Z
L
4
L
L
Z
LiFePO4 Programmable
L
H
5
L
Z
L
LiFePO4 Fixed Fast Charge
H
Z
6
L
H
Z
LiFePO4 Fixed Standard Charge
Z
H
7
L
Z
H
Lead-Acid Fixed
Z
Z
Lead-Acid Programmable
H
L
8
L
Z
Z
9
H
L
L
Invalid
H
L
H
Invalid
H
H
L
12 *
H
H
H
2
INT_VCC
L
NOTES: UNLESS OTHERWISE SPECIFIED
1. RESISTORS: OHMS, 0402, 1%, 1/16W
2. CAPACITORS: 0402, 10%, 50V
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
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
* Lead-Acid Only
TECHNOLOGY
NC
GB
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
A
B
C
IC NO.
N/A
SCALE = NONE
D
DATE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
35V SYNCHRONOUS STEP-DOWN
CONTROLLER BATTERY CHARGER
REV.
GUI INTERFACE
DEMO CIRCUIT 2039A
2 - 4 - 16
5
SHEET
E
2
OF
2
1
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