DC1210A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
D
DESCRIPTION
DATE
APPROVED
HVIN
D
6V - 38V
E1
+
GND
ON
C9
22uF
50V
E2
2
LTC4090EDJC
C7
1000pF
50V
3
E3
D1
B360A
22 HVEN
HVOUT 18
HVPR 7
C4
0.1uF
R2
1 Ohm
R3
D+ 3
ID 4
16 SUSP
R4
71.5K
1%
USB Current
1
2
3
R5
10.0K
1%
4
USB ON/OFF
1
OFF
2
ON
3
JP3
SUSP
PROG
CHRG
E9
1
NTC
EXT
R10
10.0K
1%
R14
OPT
E19
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
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
CONTRACT NO.
APPROVALS
3
TECHNOLOGY
DRAWN:
TITLE:
CHECKED:
APPROVED:
JP4
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
LTC4090EDJC
USB Power Manager with 2A High Voltage Buck Regulator
ENGINEER:
SIZE
DESIGNER:
DWG NO.
REV
2
DEMO CIRCUIT 1210A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
INT
3
R13
1K 1%
B
NTC
E11
HVOUT
PG
5
J2
DF3A-3P-2DSA
GND
2
E18
E15
A
E7
3
R12
40.2K
1%
E12
LI-Ion+
2
R11
59K
1%
E10
E14
GND
R9
1 Ohm
SYNC
E13
GND
C10
10pF
C
1
GRN
C11
270pF
CLPROG
GND
E6
C8
4.7uF
6.3V
D4
680
VOUT
E5
R8
23 GND
NTC 5
SYNC PG RT VC
HVPR
E4
C6
4.7uF
6.3V
Q2
Si2333DS
3
E8
680
E17
VNTC 6
9 PROG
JP2
HPWR
R7
Si2333DS
1.00K 1%
2
100mA
Q1
HVOUT
E16
D3
RED
BAT 11
CHRG 8
14 CLPROG
1
C3
22uF
6.3V
1206
R6
GATE 10
17 TIMER
2.10K
1%
GND 5
OUT 13
HVOUT
L1
6.5uH
BOOST
SW 20
12 IN
C5
4.7uF
6.3V
VBUS 1
D- 2
500mA
21 HVIN
SUMIDA
CDR6D28MN-6R5
C2
0.47uF
16V
19
15 HPWR
USB
4.35V-5.5V
J1
R1
1M
1%
C1
1uF
50V
1206
JP1
C
U1
HVEN
1
OFF
B
REV
DATE:
2
SHEET
1
1
OF 1
A
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