Linear Technology DC1973A, Демонстрационное руководство

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7
dc1973af
DEMO MANUAL DC1973A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
schematic Diagram
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
ALL CAPACITORS ARE 0402.
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0402.
(2MHz)
OPEN
SET
OPEN
SHORT
OPEN
D-
OPEN
D+
OPEN
V+
VCABLE
VOUT
GND
C-GND
DATA+ DATA-
VSYS
VCABLE
VCABLE
VSYS
VCABLE
VIN
INTVCC
INTVCC
R19
10k
0603
R19
10k
0603
C17 0.1µF 50V C17 0.1µF 50V
C11 1µF 25V 0805 C11 1µF 25V 0805
FB1FB1
E5
C_GND
E5
C_GND
R20
2M
0603 R20
2M
0603
R15 75k 0603 R15 75k 0603
C12 1µF 25V 0805 C12 1µF 25V 0805
R9
10k
R9
10k
U1
LT8697EUDD
U1
LT8697EUDD
VIN
5
VIN
6
EN/UV
4
SYNC
1
RCBL
23
ICTRL
24
INTVCC
17
TR/SS
2
RT
3
PGND
7
PGND
8
N/C
9
N/C
12
N/C
11
N/C
10
USB5V
20
PG
19
SYS
18
ISN
22
ISP
21
SW
15
SW
14
SW
13
BST
16
GND
25
C8 4.7µF 50V 1206 C8 4.7µF 50V 1206
E18E18
R21
2
1206
R21
2
1206
E6
GND
E6
GND
X4X4
1
2
3
E17E17
E3
VCABLE 5V / 2.1A
E3
VCABLE 5V / 2.1A
C6 1µF 25V 0603 C6 1µF 25V 0603
E10
ICTRL
E10
ICTRL
C9 OPT
10V 1206
C9 OPT
10V 1206
R8
49.9k
R8
49.9k
R16 43.2k 0603 R16 43.2k 0603
R23 18
2512
R23 18
2512
R14
OPT
R14
OPT
R10 16.5k
0603
R10 16.5k
0603
R17
49.9k
0603
R17
49.9k
0603
C10 0.1µF 25V 0603 C10 0.1µF 25V 0603
C25 47µF 10V 1210 C25 47µF 10V 1210
R1 1M R1 1M
R18 49.9k 0603 R18 49.9k 0603
R3
0.02
1206
R3
0.02
1206
Q1
ZXMN3A14F
Q1
ZXMN3A14F
1
3 2
C2 4.7µF 50V 1206 C2 4.7µF 50V 1206
E9
GND
E9
GND
E2
GND
E2
GND
X3X3
1
2
3
C16 0.1µF 50V C16 0.1µF 50V
C13
1nF
C13
1nF
C14 2.2nF 0603 C14 2.2nF 0603
R24
2
1206
R24
2
1206
E1
VIN
6V - 42V
E1
VIN
6V - 42V
+
C1 22µF
63V SUNCON 63CE22BS
+
C1 22µF
63V SUNCON 63CE22BS
C3 0.22µF 16V 0603 C3 0.22µF 16V 0603
R22 100k R22 100k
X1X1
1
2
3
E4
SYNC
E4
SYNC
E8
RCBL
E8
RCBL
C7 4.7uF 50V 1206 C7 4.7uF 50V 1206
R11
0
1206
R11
0
1206
R6
100k
R6
100k
E11
PG
E11
PG
X2X2
1
2
3
R13
OPT
1206
R13
OPT
1206
E15E15
R7 12.4k
0603
R7 12.4k
0603
R4
0.3 0830
2W
R4
0.3 0830
2W
R5 18
2512
R5 18
2512
R2
OPT
R2
OPT
C15 0.1µF 50V C15 0.1µF 50V
E12
GND
E12
GND
E16E16
L1
3.3µH
XAL5030-332MEC
L1
3.3µH
XAL5030-332MEC
E7
VOUT
5.xV / 2.1A
E7
VOUT
5.xV / 2.1A
X5X5
1
2
3
E13
VSYS 5.xV / 0.1A
E13
VSYS 5.xV / 0.1A
C4 47µF 10V 1210 C4 47µF 10V 1210
C5 0.1µF C5 0.1µF
J3
USB
J3
USB
1
1
4
4
3
3
2
2
U2
LTC6900CS5
U2
LTC6900CS5
V+
1
OUT
5
GND
2
DIV
4
SET
3
L2
4.7µH
L2
4.7µH
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