Linear Technology DC1573A, Демонстрационное руководство, Страница: 5 / 7

5
dc1573af
DEMO MANUAL DC1573A
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
R13 10k
R13 10k 100mA
DC1573A F02
FAUL
T
SHDN
/UVLO
CTRL NC PW
M
SYNC OVPSET REF TSET INT
V
CC
16 15
1 5
27 17 28
3 2
13
GA
TE
SENSE
V
OUT
LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8
GND
12 11 18 6 7 8 9 20 21 22 23 24
LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8
E7 E9
E11 E14 E16 E18 E20 E22
VC
ISET
PGND
PGND
PGND
RT
26
4
10
19
29
25
V
IN
R12 OPT
R2 OPT
R3 OPT
R1 499k 1%
R9 OPT
R6 OPT
R18 1M
R4 40.2k 1%
R16 OPT
R10 20k 1% R8 11k 1%
R7 20k 1%
R11 30.9k 1%
R5 OPT
R15 100k
C
IN1
4.7µF 25V
C
IN2
4.7µF 25V
REF
C6 4.7µF 10V
C10 OPT
14
4
8
7
6
5
1
2
3
R
S1
0.015Ω
R17 0Ω
M1 Si7850DP
D1
PDS560
L1 10µH
CDRH8D38NP
C1 2.2µF 100V 1210
C2 2.2µF 100V 1210
C3 2.2µF 100V 1210
C4 2.2µF 100V 1210
C5 2.2µF 100V 1210
LED+ LED+ LED+ LED+ LED+ LED+ LED+ LED+
E10 E15 E19 E23 E27 E31 E35 E39 E42 E44
GND GND
C7 2200pF
RT 39.2k 1MHz
U1
LT3760EFE
E45 E2 E1 E3
GND
V
IN
10V TO 14V
GND
FAUL
T
SHDN
/UVLO
PV
IN
20V TO 28V
E41
GND
E40
CTRL
E5
PW
M
E6
SYNC
E13 E4
GND
INT
V
CC
E43 E46