DC1701A - Schematic

5
4
3
2
1
REVISION HISTORY
INPUT CURRENT LIMIT SETTINGS
Input Limit Current
D2 D1 D0 JP5 (HPWR) = 1A
0
0
0
0
D
VUSB
1
D-
2
D+
3
ID
4
GND
5
3
TP1
TP2
TP3
D+
ID
R1
1.0
5%
E2
TP4
OVGATE
GND
2
1
0603
NTCBIAS
500mA (5X)
750mA
500uA (SUSP)
100mA (1X)
750µA
150mA
OFF
0
1
0
1
1A (10X)
500mA (5X)
1.5A
750mA
OFF
OFF
2.5mA (SUSP)
3.75mA
OFF
DESCRIPTION
APPROVED
PRODUCTION FAB
GEORGE B.
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Not USB Compliant
4
VOUT
VC/TRACK
VOUT
GND
ACPR
GND
PG
WALL
SYNC
SHDN
DVCC
ILIM
SDA
HVOK/INIT
SCL
HVIN
D
SQT-108-01-F-D-RA
13
VBUS
VC
20
TP7
ACPR
19
TP5
WALL
18
TP6
OVGATE
OVSENS
LTC4098EUDC-3.6
E3
DATE
05-06-10
HV BUCK
INTERFACE
U1
Leakage current
must be < 400nA
R2
6.04k
C
ON
OFF
0
1
0
1
C2
22uF
0805
20%
6.3V
Q1
Si2306BDS
6.3V
MINI-B USB
ON
ON
1
1
1
REV
2
C1
10uF
0603
20%
D-
1
VUSB
150mA
1.5A
1
0
* Note:
J1
100mA (1X)
1A (10X)
0
1
1
1
4.35V - 5.5V, Non-operating Fault
Tolerance to 30V Continous, 36V
Transient.
0
1
0
1
E1
ECO
Input Limit Current
CHARGER
JP5 (HPWR) = 1.5A * STATUS
NTCBIAS
SW
14
VOUT
12
L1
3.3uH
C
VOUT
XFL4020-332MEC
Footprint can mount XFL or XPL
E12
C5
22uF
0805
20%
6.3V
D1
BATTERY
CHARGING
Green
E11
GND
2
R3
100k
VOUT
3.0V - 4.2V
2A
E4
5
NTC
IDGATE
NTC
10
Leakage currrent must be < 50nA
1
VOUT
1
16
17
CHRG
8
BATSENS
6
D1
D2
CHRG
E9
PROG
3
CLPROG
R12
0
BAT
21
0
Unless noted:
Resistors: Ohms, 0402, 1%, 1/16W
Capacitors: uF, 0402, 10%, 50V
PROG
CLPROG
JP4
NTC
E6
HPWR
JP5
A
R4
806
C3
0.1uF
16V
R5
3.01k
1.5A
1A
R14
4.22k
4
BAT
VFLOAT = 3.6V
1.25A
R10
1.0
5%
E7
GND
R11
1.0
5%
J2
1
2
3
R8
0
BAT
GND
NTC
DF3-3P-2DSA
OPT
EXT
CUSTOMER NOTICE
INT
R6
0
R7
100k
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.
5
R9
1.0
5%
0
E5
B
C4
100uF
20%
6.3V
1206
9
BATSENS
E8
11
GNDGND
JP3
D2
1
E10
0
JP2
D1
1
D0
7
R13
1k
5%
0603
3
TP8
15
JP1
D0
B
Q2
Si2333DS
3
APPROVALS
TECHNOLOGY
PCB DES.
NC
APP ENG.
GEORGE B.
TITLE: SCHEMATIC
USB COMPATIBLE SWITCHING POWER
MANAGER / LI-ION CHARGER WITH OVERVOLTAGE PROTECTION
SIZE
N/A
SCALE = NONE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
REV.
LTC4098EUDC-3.6
DEMO CIRCUIT 1701A
1
Friday, June 25, 2010
SHEET 1
1
OF
1
A
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